package org.hl7.fhir.r4.model;

/*
  Copyright (c) 2011+, HL7, Inc.
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:
  
   * Redistributions of source code must retain the above copyright notice, this 
     list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright notice, 
     this list of conditions and the following disclaimer in the documentation 
     and/or other materials provided with the distribution.
   * Neither the name of HL7 nor the names of its contributors may be used to 
     endorse or promote products derived from this software without specific 
     prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
  POSSIBILITY OF SUCH DAMAGE.
  
*/

// Generated on Tue, May 12, 2020 07:26+1000 for FHIR v4.0.1
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;

import org.hl7.fhir.exceptions.FHIRException;
import org.hl7.fhir.instance.model.api.IBaseBackboneElement;
import org.hl7.fhir.r4.model.Enumerations.PublicationStatus;
import org.hl7.fhir.r4.model.Enumerations.PublicationStatusEnumFactory;
import org.hl7.fhir.utilities.Utilities;

import ca.uhn.fhir.model.api.annotation.Block;
import ca.uhn.fhir.model.api.annotation.Child;
import ca.uhn.fhir.model.api.annotation.ChildOrder;
import ca.uhn.fhir.model.api.annotation.Description;
import ca.uhn.fhir.model.api.annotation.ResourceDef;
import ca.uhn.fhir.model.api.annotation.SearchParamDefinition;

/**
 * The CodeSystem resource is used to declare the existence of and describe a
 * code system or code system supplement and its key properties, and optionally
 * define a part or all of its content.
 */
@ResourceDef(name = "CodeSystem", profile = "http://hl7.org/fhir/StructureDefinition/CodeSystem")
@ChildOrder(names = { "url", "identifier", "version", "name", "title", "status", "experimental", "date", "publisher",
    "contact", "description", "useContext", "jurisdiction", "purpose", "copyright", "caseSensitive", "valueSet",
    "hierarchyMeaning", "compositional", "versionNeeded", "content", "supplements", "count", "filter", "property",
    "concept" })
public class CodeSystem extends MetadataResource {

  public enum CodeSystemHierarchyMeaning {
    /**
     * No particular relationship between the concepts can be assumed, except what
     * can be determined by inspection of the definitions of the elements (possible
     * reasons to use this: importing from a source where this is not defined, or
     * where various parts of the hierarchy have different meanings).
     */
    GROUPEDBY,
    /**
     * A hierarchy where the child concepts have an IS-A relationship with the
     * parents - that is, all the properties of the parent are also true for its
     * child concepts. Not that is-a is a property of the concepts, so additional
     * subsumption relationships may be defined using properties or the
     * [subsumes](extension-codesystem-subsumes.html) extension.
     */
    ISA,
    /**
     * Child elements list the individual parts of a composite whole (e.g. body
     * site).
     */
    PARTOF,
    /**
     * Child concepts in the hierarchy may have only one parent, and there is a
     * presumption that the code system is a "closed world" meaning all things must
     * be in the hierarchy. This results in concepts such as "not otherwise
     * classified.".
     */
    CLASSIFIEDWITH,
    /**
     * added to help the parsers with the generic types
     */
    NULL;

    public static CodeSystemHierarchyMeaning fromCode(String codeString) throws FHIRException {
      if (codeString == null || "".equals(codeString))
        return null;
      if ("grouped-by".equals(codeString))
        return GROUPEDBY;
      if ("is-a".equals(codeString))
        return ISA;
      if ("part-of".equals(codeString))
        return PARTOF;
      if ("classified-with".equals(codeString))
        return CLASSIFIEDWITH;
      if (Configuration.isAcceptInvalidEnums())
        return null;
      else
        throw new FHIRException("Unknown CodeSystemHierarchyMeaning code '" + codeString + "'");
    }

    public String toCode() {
      switch (this) {
      case GROUPEDBY:
        return "grouped-by";
      case ISA:
        return "is-a";
      case PARTOF:
        return "part-of";
      case CLASSIFIEDWITH:
        return "classified-with";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getSystem() {
      switch (this) {
      case GROUPEDBY:
        return "http://hl7.org/fhir/codesystem-hierarchy-meaning";
      case ISA:
        return "http://hl7.org/fhir/codesystem-hierarchy-meaning";
      case PARTOF:
        return "http://hl7.org/fhir/codesystem-hierarchy-meaning";
      case CLASSIFIEDWITH:
        return "http://hl7.org/fhir/codesystem-hierarchy-meaning";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDefinition() {
      switch (this) {
      case GROUPEDBY:
        return "No particular relationship between the concepts can be assumed, except what can be determined by inspection of the definitions of the elements (possible reasons to use this: importing from a source where this is not defined, or where various parts of the hierarchy have different meanings).";
      case ISA:
        return "A hierarchy where the child concepts have an IS-A relationship with the parents - that is, all the properties of the parent are also true for its child concepts. Not that is-a is a property of the concepts, so additional subsumption relationships may be defined using properties or the [subsumes](extension-codesystem-subsumes.html) extension.";
      case PARTOF:
        return "Child elements list the individual parts of a composite whole (e.g. body site).";
      case CLASSIFIEDWITH:
        return "Child concepts in the hierarchy may have only one parent, and there is a presumption that the code system is a \"closed world\" meaning all things must be in the hierarchy. This results in concepts such as \"not otherwise classified.\".";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDisplay() {
      switch (this) {
      case GROUPEDBY:
        return "Grouped By";
      case ISA:
        return "Is-A";
      case PARTOF:
        return "Part Of";
      case CLASSIFIEDWITH:
        return "Classified With";
      case NULL:
        return null;
      default:
        return "?";
      }
    }
  }

  public static class CodeSystemHierarchyMeaningEnumFactory implements EnumFactory<CodeSystemHierarchyMeaning> {
    public CodeSystemHierarchyMeaning fromCode(String codeString) throws IllegalArgumentException {
      if (codeString == null || "".equals(codeString))
        if (codeString == null || "".equals(codeString))
          return null;
      if ("grouped-by".equals(codeString))
        return CodeSystemHierarchyMeaning.GROUPEDBY;
      if ("is-a".equals(codeString))
        return CodeSystemHierarchyMeaning.ISA;
      if ("part-of".equals(codeString))
        return CodeSystemHierarchyMeaning.PARTOF;
      if ("classified-with".equals(codeString))
        return CodeSystemHierarchyMeaning.CLASSIFIEDWITH;
      throw new IllegalArgumentException("Unknown CodeSystemHierarchyMeaning code '" + codeString + "'");
    }

    public Enumeration<CodeSystemHierarchyMeaning> fromType(PrimitiveType<?> code) throws FHIRException {
      if (code == null)
        return null;
      if (code.isEmpty())
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.NULL, code);
      String codeString = code.asStringValue();
      if (codeString == null || "".equals(codeString))
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.NULL, code);
      if ("grouped-by".equals(codeString))
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.GROUPEDBY, code);
      if ("is-a".equals(codeString))
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.ISA, code);
      if ("part-of".equals(codeString))
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.PARTOF, code);
      if ("classified-with".equals(codeString))
        return new Enumeration<CodeSystemHierarchyMeaning>(this, CodeSystemHierarchyMeaning.CLASSIFIEDWITH, code);
      throw new FHIRException("Unknown CodeSystemHierarchyMeaning code '" + codeString + "'");
    }

    public String toCode(CodeSystemHierarchyMeaning code) {
      if (code == CodeSystemHierarchyMeaning.GROUPEDBY)
        return "grouped-by";
      if (code == CodeSystemHierarchyMeaning.ISA)
        return "is-a";
      if (code == CodeSystemHierarchyMeaning.PARTOF)
        return "part-of";
      if (code == CodeSystemHierarchyMeaning.CLASSIFIEDWITH)
        return "classified-with";
      return "?";
    }

    public String toSystem(CodeSystemHierarchyMeaning code) {
      return code.getSystem();
    }
  }

  public enum CodeSystemContentMode {
    /**
     * None of the concepts defined by the code system are included in the code
     * system resource.
     */
    NOTPRESENT,
    /**
     * A few representative concepts are included in the code system resource. There
     * is no useful intent in the subset choice and there's no process to make it
     * workable: it's not intended to be workable.
     */
    EXAMPLE,
    /**
     * A subset of the code system concepts are included in the code system
     * resource. This is a curated subset released for a specific purpose under the
     * governance of the code system steward, and that the intent, bounds and
     * consequences of the fragmentation are clearly defined in the fragment or the
     * code system documentation. Fragments are also known as partitions.
     */
    FRAGMENT,
    /**
     * All the concepts defined by the code system are included in the code system
     * resource.
     */
    COMPLETE,
    /**
     * The resource doesn't define any new concepts; it just provides additional
     * designations and properties to another code system.
     */
    SUPPLEMENT,
    /**
     * added to help the parsers with the generic types
     */
    NULL;

    public static CodeSystemContentMode fromCode(String codeString) throws FHIRException {
      if (codeString == null || "".equals(codeString))
        return null;
      if ("not-present".equals(codeString))
        return NOTPRESENT;
      if ("example".equals(codeString))
        return EXAMPLE;
      if ("fragment".equals(codeString))
        return FRAGMENT;
      if ("complete".equals(codeString))
        return COMPLETE;
      if ("supplement".equals(codeString))
        return SUPPLEMENT;
      if (Configuration.isAcceptInvalidEnums())
        return null;
      else
        throw new FHIRException("Unknown CodeSystemContentMode code '" + codeString + "'");
    }

    public String toCode() {
      switch (this) {
      case NOTPRESENT:
        return "not-present";
      case EXAMPLE:
        return "example";
      case FRAGMENT:
        return "fragment";
      case COMPLETE:
        return "complete";
      case SUPPLEMENT:
        return "supplement";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getSystem() {
      switch (this) {
      case NOTPRESENT:
        return "http://hl7.org/fhir/codesystem-content-mode";
      case EXAMPLE:
        return "http://hl7.org/fhir/codesystem-content-mode";
      case FRAGMENT:
        return "http://hl7.org/fhir/codesystem-content-mode";
      case COMPLETE:
        return "http://hl7.org/fhir/codesystem-content-mode";
      case SUPPLEMENT:
        return "http://hl7.org/fhir/codesystem-content-mode";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDefinition() {
      switch (this) {
      case NOTPRESENT:
        return "None of the concepts defined by the code system are included in the code system resource.";
      case EXAMPLE:
        return "A few representative concepts are included in the code system resource. There is no useful intent in the subset choice and there's no process to make it workable: it's not intended to be workable.";
      case FRAGMENT:
        return "A subset of the code system concepts are included in the code system resource. This is a curated subset released for a specific purpose under the governance of the code system steward, and that the intent, bounds and consequences of the fragmentation are clearly defined in the fragment or the code system documentation. Fragments are also known as partitions.";
      case COMPLETE:
        return "All the concepts defined by the code system are included in the code system resource.";
      case SUPPLEMENT:
        return "The resource doesn't define any new concepts; it just provides additional designations and properties to another code system.";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDisplay() {
      switch (this) {
      case NOTPRESENT:
        return "Not Present";
      case EXAMPLE:
        return "Example";
      case FRAGMENT:
        return "Fragment";
      case COMPLETE:
        return "Complete";
      case SUPPLEMENT:
        return "Supplement";
      case NULL:
        return null;
      default:
        return "?";
      }
    }
  }

  public static class CodeSystemContentModeEnumFactory implements EnumFactory<CodeSystemContentMode> {
    public CodeSystemContentMode fromCode(String codeString) throws IllegalArgumentException {
      if (codeString == null || "".equals(codeString))
        if (codeString == null || "".equals(codeString))
          return null;
      if ("not-present".equals(codeString))
        return CodeSystemContentMode.NOTPRESENT;
      if ("example".equals(codeString))
        return CodeSystemContentMode.EXAMPLE;
      if ("fragment".equals(codeString))
        return CodeSystemContentMode.FRAGMENT;
      if ("complete".equals(codeString))
        return CodeSystemContentMode.COMPLETE;
      if ("supplement".equals(codeString))
        return CodeSystemContentMode.SUPPLEMENT;
      throw new IllegalArgumentException("Unknown CodeSystemContentMode code '" + codeString + "'");
    }

    public Enumeration<CodeSystemContentMode> fromType(PrimitiveType<?> code) throws FHIRException {
      if (code == null)
        return null;
      if (code.isEmpty())
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.NULL, code);
      String codeString = code.asStringValue();
      if (codeString == null || "".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.NULL, code);
      if ("not-present".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.NOTPRESENT, code);
      if ("example".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.EXAMPLE, code);
      if ("fragment".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.FRAGMENT, code);
      if ("complete".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.COMPLETE, code);
      if ("supplement".equals(codeString))
        return new Enumeration<CodeSystemContentMode>(this, CodeSystemContentMode.SUPPLEMENT, code);
      throw new FHIRException("Unknown CodeSystemContentMode code '" + codeString + "'");
    }

    public String toCode(CodeSystemContentMode code) {
      if (code == CodeSystemContentMode.NOTPRESENT)
        return "not-present";
      if (code == CodeSystemContentMode.EXAMPLE)
        return "example";
      if (code == CodeSystemContentMode.FRAGMENT)
        return "fragment";
      if (code == CodeSystemContentMode.COMPLETE)
        return "complete";
      if (code == CodeSystemContentMode.SUPPLEMENT)
        return "supplement";
      return "?";
    }

    public String toSystem(CodeSystemContentMode code) {
      return code.getSystem();
    }
  }

  public enum FilterOperator {
    /**
     * The specified property of the code equals the provided value.
     */
    EQUAL,
    /**
     * Includes all concept ids that have a transitive is-a relationship with the
     * concept Id provided as the value, including the provided concept itself
     * (include descendant codes and self).
     */
    ISA,
    /**
     * Includes all concept ids that have a transitive is-a relationship with the
     * concept Id provided as the value, excluding the provided concept itself i.e.
     * include descendant codes only).
     */
    DESCENDENTOF,
    /**
     * The specified property of the code does not have an is-a relationship with
     * the provided value.
     */
    ISNOTA,
    /**
     * The specified property of the code matches the regex specified in the
     * provided value.
     */
    REGEX,
    /**
     * The specified property of the code is in the set of codes or concepts
     * specified in the provided value (comma separated list).
     */
    IN,
    /**
     * The specified property of the code is not in the set of codes or concepts
     * specified in the provided value (comma separated list).
     */
    NOTIN,
    /**
     * Includes all concept ids that have a transitive is-a relationship from the
     * concept Id provided as the value, including the provided concept itself (i.e.
     * include ancestor codes and self).
     */
    GENERALIZES,
    /**
     * The specified property of the code has at least one value (if the specified
     * value is true; if the specified value is false, then matches when the
     * specified property of the code has no values).
     */
    EXISTS,
    /**
     * added to help the parsers with the generic types
     */
    NULL;

    public static FilterOperator fromCode(String codeString) throws FHIRException {
      if (codeString == null || "".equals(codeString))
        return null;
      if ("=".equals(codeString))
        return EQUAL;
      if ("is-a".equals(codeString))
        return ISA;
      if ("descendent-of".equals(codeString))
        return DESCENDENTOF;
      if ("is-not-a".equals(codeString))
        return ISNOTA;
      if ("regex".equals(codeString))
        return REGEX;
      if ("in".equals(codeString))
        return IN;
      if ("not-in".equals(codeString))
        return NOTIN;
      if ("generalizes".equals(codeString))
        return GENERALIZES;
      if ("exists".equals(codeString))
        return EXISTS;
      if (Configuration.isAcceptInvalidEnums())
        return null;
      else
        throw new FHIRException("Unknown FilterOperator code '" + codeString + "'");
    }

    public String toCode() {
      switch (this) {
      case EQUAL:
        return "=";
      case ISA:
        return "is-a";
      case DESCENDENTOF:
        return "descendent-of";
      case ISNOTA:
        return "is-not-a";
      case REGEX:
        return "regex";
      case IN:
        return "in";
      case NOTIN:
        return "not-in";
      case GENERALIZES:
        return "generalizes";
      case EXISTS:
        return "exists";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getSystem() {
      switch (this) {
      case EQUAL:
        return "http://hl7.org/fhir/filter-operator";
      case ISA:
        return "http://hl7.org/fhir/filter-operator";
      case DESCENDENTOF:
        return "http://hl7.org/fhir/filter-operator";
      case ISNOTA:
        return "http://hl7.org/fhir/filter-operator";
      case REGEX:
        return "http://hl7.org/fhir/filter-operator";
      case IN:
        return "http://hl7.org/fhir/filter-operator";
      case NOTIN:
        return "http://hl7.org/fhir/filter-operator";
      case GENERALIZES:
        return "http://hl7.org/fhir/filter-operator";
      case EXISTS:
        return "http://hl7.org/fhir/filter-operator";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDefinition() {
      switch (this) {
      case EQUAL:
        return "The specified property of the code equals the provided value.";
      case ISA:
        return "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (include descendant codes and self).";
      case DESCENDENTOF:
        return "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself i.e. include descendant codes only).";
      case ISNOTA:
        return "The specified property of the code does not have an is-a relationship with the provided value.";
      case REGEX:
        return "The specified property of the code  matches the regex specified in the provided value.";
      case IN:
        return "The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list).";
      case NOTIN:
        return "The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list).";
      case GENERALIZES:
        return "Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (i.e. include ancestor codes and self).";
      case EXISTS:
        return "The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values).";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDisplay() {
      switch (this) {
      case EQUAL:
        return "Equals";
      case ISA:
        return "Is A (by subsumption)";
      case DESCENDENTOF:
        return "Descendent Of (by subsumption)";
      case ISNOTA:
        return "Not (Is A) (by subsumption)";
      case REGEX:
        return "Regular Expression";
      case IN:
        return "In Set";
      case NOTIN:
        return "Not in Set";
      case GENERALIZES:
        return "Generalizes (by Subsumption)";
      case EXISTS:
        return "Exists";
      case NULL:
        return null;
      default:
        return "?";
      }
    }
  }

  public static class FilterOperatorEnumFactory implements EnumFactory<FilterOperator> {
    public FilterOperator fromCode(String codeString) throws IllegalArgumentException {
      if (codeString == null || "".equals(codeString))
        if (codeString == null || "".equals(codeString))
          return null;
      if ("=".equals(codeString))
        return FilterOperator.EQUAL;
      if ("is-a".equals(codeString))
        return FilterOperator.ISA;
      if ("descendent-of".equals(codeString))
        return FilterOperator.DESCENDENTOF;
      if ("is-not-a".equals(codeString))
        return FilterOperator.ISNOTA;
      if ("regex".equals(codeString))
        return FilterOperator.REGEX;
      if ("in".equals(codeString))
        return FilterOperator.IN;
      if ("not-in".equals(codeString))
        return FilterOperator.NOTIN;
      if ("generalizes".equals(codeString))
        return FilterOperator.GENERALIZES;
      if ("exists".equals(codeString))
        return FilterOperator.EXISTS;
      throw new IllegalArgumentException("Unknown FilterOperator code '" + codeString + "'");
    }

    public Enumeration<FilterOperator> fromType(PrimitiveType<?> code) throws FHIRException {
      if (code == null)
        return null;
      if (code.isEmpty())
        return new Enumeration<FilterOperator>(this, FilterOperator.NULL, code);
      String codeString = code.asStringValue();
      if (codeString == null || "".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.NULL, code);
      if ("=".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.EQUAL, code);
      if ("is-a".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.ISA, code);
      if ("descendent-of".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.DESCENDENTOF, code);
      if ("is-not-a".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.ISNOTA, code);
      if ("regex".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.REGEX, code);
      if ("in".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.IN, code);
      if ("not-in".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.NOTIN, code);
      if ("generalizes".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.GENERALIZES, code);
      if ("exists".equals(codeString))
        return new Enumeration<FilterOperator>(this, FilterOperator.EXISTS, code);
      throw new FHIRException("Unknown FilterOperator code '" + codeString + "'");
    }

    public String toCode(FilterOperator code) {
      if (code == FilterOperator.EQUAL)
        return "=";
      if (code == FilterOperator.ISA)
        return "is-a";
      if (code == FilterOperator.DESCENDENTOF)
        return "descendent-of";
      if (code == FilterOperator.ISNOTA)
        return "is-not-a";
      if (code == FilterOperator.REGEX)
        return "regex";
      if (code == FilterOperator.IN)
        return "in";
      if (code == FilterOperator.NOTIN)
        return "not-in";
      if (code == FilterOperator.GENERALIZES)
        return "generalizes";
      if (code == FilterOperator.EXISTS)
        return "exists";
      return "?";
    }

    public String toSystem(FilterOperator code) {
      return code.getSystem();
    }
  }

  public enum PropertyType {
    /**
     * The property value is a code that identifies a concept defined in the code
     * system.
     */
    CODE,
    /**
     * The property value is a code defined in an external code system. This may be
     * used for translations, but is not the intent.
     */
    CODING,
    /**
     * The property value is a string.
     */
    STRING,
    /**
     * The property value is a string (often used to assign ranking values to
     * concepts for supporting score assessments).
     */
    INTEGER,
    /**
     * The property value is a boolean true | false.
     */
    BOOLEAN,
    /**
     * The property is a date or a date + time.
     */
    DATETIME,
    /**
     * The property value is a decimal number.
     */
    DECIMAL,
    /**
     * added to help the parsers with the generic types
     */
    NULL;

    public static PropertyType fromCode(String codeString) throws FHIRException {
      if (codeString == null || "".equals(codeString))
        return null;
      if ("code".equals(codeString))
        return CODE;
      if ("Coding".equals(codeString))
        return CODING;
      if ("string".equals(codeString))
        return STRING;
      if ("integer".equals(codeString))
        return INTEGER;
      if ("boolean".equals(codeString))
        return BOOLEAN;
      if ("dateTime".equals(codeString))
        return DATETIME;
      if ("decimal".equals(codeString))
        return DECIMAL;
      if (Configuration.isAcceptInvalidEnums())
        return null;
      else
        throw new FHIRException("Unknown PropertyType code '" + codeString + "'");
    }

    public String toCode() {
      switch (this) {
      case CODE:
        return "code";
      case CODING:
        return "Coding";
      case STRING:
        return "string";
      case INTEGER:
        return "integer";
      case BOOLEAN:
        return "boolean";
      case DATETIME:
        return "dateTime";
      case DECIMAL:
        return "decimal";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getSystem() {
      switch (this) {
      case CODE:
        return "http://hl7.org/fhir/concept-property-type";
      case CODING:
        return "http://hl7.org/fhir/concept-property-type";
      case STRING:
        return "http://hl7.org/fhir/concept-property-type";
      case INTEGER:
        return "http://hl7.org/fhir/concept-property-type";
      case BOOLEAN:
        return "http://hl7.org/fhir/concept-property-type";
      case DATETIME:
        return "http://hl7.org/fhir/concept-property-type";
      case DECIMAL:
        return "http://hl7.org/fhir/concept-property-type";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDefinition() {
      switch (this) {
      case CODE:
        return "The property value is a code that identifies a concept defined in the code system.";
      case CODING:
        return "The property  value is a code defined in an external code system. This may be used for translations, but is not the intent.";
      case STRING:
        return "The property value is a string.";
      case INTEGER:
        return "The property value is a string (often used to assign ranking values to concepts for supporting score assessments).";
      case BOOLEAN:
        return "The property value is a boolean true | false.";
      case DATETIME:
        return "The property is a date or a date + time.";
      case DECIMAL:
        return "The property value is a decimal number.";
      case NULL:
        return null;
      default:
        return "?";
      }
    }

    public String getDisplay() {
      switch (this) {
      case CODE:
        return "code (internal reference)";
      case CODING:
        return "Coding (external reference)";
      case STRING:
        return "string";
      case INTEGER:
        return "integer";
      case BOOLEAN:
        return "boolean";
      case DATETIME:
        return "dateTime";
      case DECIMAL:
        return "decimal";
      case NULL:
        return null;
      default:
        return "?";
      }
    }
  }

  public static class PropertyTypeEnumFactory implements EnumFactory<PropertyType> {
    public PropertyType fromCode(String codeString) throws IllegalArgumentException {
      if (codeString == null || "".equals(codeString))
        if (codeString == null || "".equals(codeString))
          return null;
      if ("code".equals(codeString))
        return PropertyType.CODE;
      if ("Coding".equals(codeString))
        return PropertyType.CODING;
      if ("string".equals(codeString))
        return PropertyType.STRING;
      if ("integer".equals(codeString))
        return PropertyType.INTEGER;
      if ("boolean".equals(codeString))
        return PropertyType.BOOLEAN;
      if ("dateTime".equals(codeString))
        return PropertyType.DATETIME;
      if ("decimal".equals(codeString))
        return PropertyType.DECIMAL;
      throw new IllegalArgumentException("Unknown PropertyType code '" + codeString + "'");
    }

    public Enumeration<PropertyType> fromType(PrimitiveType<?> code) throws FHIRException {
      if (code == null)
        return null;
      if (code.isEmpty())
        return new Enumeration<PropertyType>(this, PropertyType.NULL, code);
      String codeString = code.asStringValue();
      if (codeString == null || "".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.NULL, code);
      if ("code".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.CODE, code);
      if ("Coding".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.CODING, code);
      if ("string".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.STRING, code);
      if ("integer".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.INTEGER, code);
      if ("boolean".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.BOOLEAN, code);
      if ("dateTime".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.DATETIME, code);
      if ("decimal".equals(codeString))
        return new Enumeration<PropertyType>(this, PropertyType.DECIMAL, code);
      throw new FHIRException("Unknown PropertyType code '" + codeString + "'");
    }

    public String toCode(PropertyType code) {
      if (code == PropertyType.CODE)
        return "code";
      if (code == PropertyType.CODING)
        return "Coding";
      if (code == PropertyType.STRING)
        return "string";
      if (code == PropertyType.INTEGER)
        return "integer";
      if (code == PropertyType.BOOLEAN)
        return "boolean";
      if (code == PropertyType.DATETIME)
        return "dateTime";
      if (code == PropertyType.DECIMAL)
        return "decimal";
      return "?";
    }

    public String toSystem(PropertyType code) {
      return code.getSystem();
    }
  }

  @Block()
  public static class CodeSystemFilterComponent extends BackboneElement implements IBaseBackboneElement {
    /**
     * The code that identifies this filter when it is used as a filter in
     * [[[ValueSet]]].compose.include.filter.
     */
    @Child(name = "code", type = { CodeType.class }, order = 1, min = 1, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "Code that identifies the filter", formalDefinition = "The code that identifies this filter when it is used as a filter in [[[ValueSet]]].compose.include.filter.")
    protected CodeType code;

    /**
     * A description of how or why the filter is used.
     */
    @Child(name = "description", type = {
        StringType.class }, order = 2, min = 0, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "How or why the filter is used", formalDefinition = "A description of how or why the filter is used.")
    protected StringType description;

    /**
     * A list of operators that can be used with the filter.
     */
    @Child(name = "operator", type = {
        CodeType.class }, order = 3, min = 1, max = Child.MAX_UNLIMITED, modifier = false, summary = true)
    @Description(shortDefinition = "= | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | exists", formalDefinition = "A list of operators that can be used with the filter.")
    @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/filter-operator")
    protected List<Enumeration<FilterOperator>> operator;

    /**
     * A description of what the value for the filter should be.
     */
    @Child(name = "value", type = { StringType.class }, order = 4, min = 1, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "What to use for the value", formalDefinition = "A description of what the value for the filter should be.")
    protected StringType value;

    private static final long serialVersionUID = -1087409836L;

    /**
     * Constructor
     */
    public CodeSystemFilterComponent() {
      super();
    }

    /**
     * Constructor
     */
    public CodeSystemFilterComponent(CodeType code, StringType value) {
      super();
      this.code = code;
      this.value = value;
    }

    /**
     * @return {@link #code} (The code that identifies this filter when it is used
     *         as a filter in [[[ValueSet]]].compose.include.filter.). This is the
     *         underlying object with id, value and extensions. The accessor
     *         "getCode" gives direct access to the value
     */
    public CodeType getCodeElement() {
      if (this.code == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create CodeSystemFilterComponent.code");
        else if (Configuration.doAutoCreate())
          this.code = new CodeType(); // bb
      return this.code;
    }

    public boolean hasCodeElement() {
      return this.code != null && !this.code.isEmpty();
    }

    public boolean hasCode() {
      return this.code != null && !this.code.isEmpty();
    }

    /**
     * @param value {@link #code} (The code that identifies this filter when it is
     *              used as a filter in [[[ValueSet]]].compose.include.filter.).
     *              This is the underlying object with id, value and extensions. The
     *              accessor "getCode" gives direct access to the value
     */
    public CodeSystemFilterComponent setCodeElement(CodeType value) {
      this.code = value;
      return this;
    }

    /**
     * @return The code that identifies this filter when it is used as a filter in
     *         [[[ValueSet]]].compose.include.filter.
     */
    public String getCode() {
      return this.code == null ? null : this.code.getValue();
    }

    /**
     * @param value The code that identifies this filter when it is used as a filter
     *              in [[[ValueSet]]].compose.include.filter.
     */
    public CodeSystemFilterComponent setCode(String value) {
      if (this.code == null)
        this.code = new CodeType();
      this.code.setValue(value);
      return this;
    }

    /**
     * @return {@link #description} (A description of how or why the filter is
     *         used.). This is the underlying object with id, value and extensions.
     *         The accessor "getDescription" gives direct access to the value
     */
    public StringType getDescriptionElement() {
      if (this.description == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create CodeSystemFilterComponent.description");
        else if (Configuration.doAutoCreate())
          this.description = new StringType(); // bb
      return this.description;
    }

    public boolean hasDescriptionElement() {
      return this.description != null && !this.description.isEmpty();
    }

    public boolean hasDescription() {
      return this.description != null && !this.description.isEmpty();
    }

    /**
     * @param value {@link #description} (A description of how or why the filter is
     *              used.). This is the underlying object with id, value and
     *              extensions. The accessor "getDescription" gives direct access to
     *              the value
     */
    public CodeSystemFilterComponent setDescriptionElement(StringType value) {
      this.description = value;
      return this;
    }

    /**
     * @return A description of how or why the filter is used.
     */
    public String getDescription() {
      return this.description == null ? null : this.description.getValue();
    }

    /**
     * @param value A description of how or why the filter is used.
     */
    public CodeSystemFilterComponent setDescription(String value) {
      if (Utilities.noString(value))
        this.description = null;
      else {
        if (this.description == null)
          this.description = new StringType();
        this.description.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #operator} (A list of operators that can be used with the
     *         filter.)
     */
    public List<Enumeration<FilterOperator>> getOperator() {
      if (this.operator == null)
        this.operator = new ArrayList<Enumeration<FilterOperator>>();
      return this.operator;
    }

    /**
     * @return Returns a reference to <code>this</code> for easy method chaining
     */
    public CodeSystemFilterComponent setOperator(List<Enumeration<FilterOperator>> theOperator) {
      this.operator = theOperator;
      return this;
    }

    public boolean hasOperator() {
      if (this.operator == null)
        return false;
      for (Enumeration<FilterOperator> item : this.operator)
        if (!item.isEmpty())
          return true;
      return false;
    }

    /**
     * @return {@link #operator} (A list of operators that can be used with the
     *         filter.)
     */
    public Enumeration<FilterOperator> addOperatorElement() {// 2
      Enumeration<FilterOperator> t = new Enumeration<FilterOperator>(new FilterOperatorEnumFactory());
      if (this.operator == null)
        this.operator = new ArrayList<Enumeration<FilterOperator>>();
      this.operator.add(t);
      return t;
    }

    /**
     * @param value {@link #operator} (A list of operators that can be used with the
     *              filter.)
     */
    public CodeSystemFilterComponent addOperator(FilterOperator value) { // 1
      Enumeration<FilterOperator> t = new Enumeration<FilterOperator>(new FilterOperatorEnumFactory());
      t.setValue(value);
      if (this.operator == null)
        this.operator = new ArrayList<Enumeration<FilterOperator>>();
      this.operator.add(t);
      return this;
    }

    /**
     * @param value {@link #operator} (A list of operators that can be used with the
     *              filter.)
     */
    public boolean hasOperator(FilterOperator value) {
      if (this.operator == null)
        return false;
      for (Enumeration<FilterOperator> v : this.operator)
        if (v.getValue().equals(value)) // code
          return true;
      return false;
    }

    /**
     * @return {@link #value} (A description of what the value for the filter should
     *         be.). This is the underlying object with id, value and extensions.
     *         The accessor "getValue" gives direct access to the value
     */
    public StringType getValueElement() {
      if (this.value == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create CodeSystemFilterComponent.value");
        else if (Configuration.doAutoCreate())
          this.value = new StringType(); // bb
      return this.value;
    }

    public boolean hasValueElement() {
      return this.value != null && !this.value.isEmpty();
    }

    public boolean hasValue() {
      return this.value != null && !this.value.isEmpty();
    }

    /**
     * @param value {@link #value} (A description of what the value for the filter
     *              should be.). This is the underlying object with id, value and
     *              extensions. The accessor "getValue" gives direct access to the
     *              value
     */
    public CodeSystemFilterComponent setValueElement(StringType value) {
      this.value = value;
      return this;
    }

    /**
     * @return A description of what the value for the filter should be.
     */
    public String getValue() {
      return this.value == null ? null : this.value.getValue();
    }

    /**
     * @param value A description of what the value for the filter should be.
     */
    public CodeSystemFilterComponent setValue(String value) {
      if (this.value == null)
        this.value = new StringType();
      this.value.setValue(value);
      return this;
    }

    protected void listChildren(List<Property> children) {
      super.listChildren(children);
      children.add(new Property("code", "code",
          "The code that identifies this filter when it is used as a filter in [[[ValueSet]]].compose.include.filter.",
          0, 1, code));
      children.add(
          new Property("description", "string", "A description of how or why the filter is used.", 0, 1, description));
      children.add(new Property("operator", "code", "A list of operators that can be used with the filter.", 0,
          java.lang.Integer.MAX_VALUE, operator));
      children.add(
          new Property("value", "string", "A description of what the value for the filter should be.", 0, 1, value));
    }

    @Override
    public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
      switch (_hash) {
      case 3059181:
        /* code */ return new Property("code", "code",
            "The code that identifies this filter when it is used as a filter in [[[ValueSet]]].compose.include.filter.",
            0, 1, code);
      case -1724546052:
        /* description */ return new Property("description", "string",
            "A description of how or why the filter is used.", 0, 1, description);
      case -500553564:
        /* operator */ return new Property("operator", "code", "A list of operators that can be used with the filter.",
            0, java.lang.Integer.MAX_VALUE, operator);
      case 111972721:
        /* value */ return new Property("value", "string", "A description of what the value for the filter should be.",
            0, 1, value);
      default:
        return super.getNamedProperty(_hash, _name, _checkValid);
      }

    }

    @Override
    public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return this.code == null ? new Base[0] : new Base[] { this.code }; // CodeType
      case -1724546052:
        /* description */ return this.description == null ? new Base[0] : new Base[] { this.description }; // StringType
      case -500553564:
        /* operator */ return this.operator == null ? new Base[0]
            : this.operator.toArray(new Base[this.operator.size()]); // Enumeration<FilterOperator>
      case 111972721:
        /* value */ return this.value == null ? new Base[0] : new Base[] { this.value }; // StringType
      default:
        return super.getProperty(hash, name, checkValid);
      }

    }

    @Override
    public Base setProperty(int hash, String name, Base value) throws FHIRException {
      switch (hash) {
      case 3059181: // code
        this.code = castToCode(value); // CodeType
        return value;
      case -1724546052: // description
        this.description = castToString(value); // StringType
        return value;
      case -500553564: // operator
        value = new FilterOperatorEnumFactory().fromType(castToCode(value));
        this.getOperator().add((Enumeration) value); // Enumeration<FilterOperator>
        return value;
      case 111972721: // value
        this.value = castToString(value); // StringType
        return value;
      default:
        return super.setProperty(hash, name, value);
      }

    }

    @Override
    public Base setProperty(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = castToCode(value); // CodeType
      } else if (name.equals("description")) {
        this.description = castToString(value); // StringType
      } else if (name.equals("operator")) {
        value = new FilterOperatorEnumFactory().fromType(castToCode(value));
        this.getOperator().add((Enumeration) value);
      } else if (name.equals("value")) {
        this.value = castToString(value); // StringType
      } else
        return super.setProperty(name, value);
      return value;
    }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = null;
      } else if (name.equals("description")) {
        this.description = null;
      } else if (name.equals("operator")) {
        this.getOperator().remove((Enumeration) value);
      } else if (name.equals("value")) {
        this.value = null;
      } else
        super.removeChild(name, value);
      
    }

    @Override
    public Base makeProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        return getCodeElement();
      case -1724546052:
        return getDescriptionElement();
      case -500553564:
        return addOperatorElement();
      case 111972721:
        return getValueElement();
      default:
        return super.makeProperty(hash, name);
      }

    }

    @Override
    public String[] getTypesForProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return new String[] { "code" };
      case -1724546052:
        /* description */ return new String[] { "string" };
      case -500553564:
        /* operator */ return new String[] { "code" };
      case 111972721:
        /* value */ return new String[] { "string" };
      default:
        return super.getTypesForProperty(hash, name);
      }

    }

    @Override
    public Base addChild(String name) throws FHIRException {
      if (name.equals("code")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.code");
      } else if (name.equals("description")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.description");
      } else if (name.equals("operator")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.operator");
      } else if (name.equals("value")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.value");
      } else
        return super.addChild(name);
    }

    public CodeSystemFilterComponent copy() {
      CodeSystemFilterComponent dst = new CodeSystemFilterComponent();
      copyValues(dst);
      return dst;
    }

    public void copyValues(CodeSystemFilterComponent dst) {
      super.copyValues(dst);
      dst.code = code == null ? null : code.copy();
      dst.description = description == null ? null : description.copy();
      if (operator != null) {
        dst.operator = new ArrayList<Enumeration<FilterOperator>>();
        for (Enumeration<FilterOperator> i : operator)
          dst.operator.add(i.copy());
      }
      ;
      dst.value = value == null ? null : value.copy();
    }

    @Override
    public boolean equalsDeep(Base other_) {
      if (!super.equalsDeep(other_))
        return false;
      if (!(other_ instanceof CodeSystemFilterComponent))
        return false;
      CodeSystemFilterComponent o = (CodeSystemFilterComponent) other_;
      return compareDeep(code, o.code, true) && compareDeep(description, o.description, true)
          && compareDeep(operator, o.operator, true) && compareDeep(value, o.value, true);
    }

    @Override
    public boolean equalsShallow(Base other_) {
      if (!super.equalsShallow(other_))
        return false;
      if (!(other_ instanceof CodeSystemFilterComponent))
        return false;
      CodeSystemFilterComponent o = (CodeSystemFilterComponent) other_;
      return compareValues(code, o.code, true) && compareValues(description, o.description, true)
          && compareValues(operator, o.operator, true) && compareValues(value, o.value, true);
    }

    public boolean isEmpty() {
      return super.isEmpty() && ca.uhn.fhir.util.ElementUtil.isEmpty(code, description, operator, value);
    }

    public String fhirType() {
      return "CodeSystem.filter";

    }

  }

  @Block()
  public static class PropertyComponent extends BackboneElement implements IBaseBackboneElement {
    /**
     * A code that is used to identify the property. The code is used internally (in
     * CodeSystem.concept.property.code) and also externally, such as in property
     * filters.
     */
    @Child(name = "code", type = { CodeType.class }, order = 1, min = 1, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "Identifies the property on the concepts, and when referred to in operations", formalDefinition = "A code that is used to identify the property. The code is used internally (in CodeSystem.concept.property.code) and also externally, such as in property filters.")
    protected CodeType code;

    /**
     * Reference to the formal meaning of the property. One possible source of
     * meaning is the [Concept Properties](codesystem-concept-properties.html) code
     * system.
     */
    @Child(name = "uri", type = { UriType.class }, order = 2, min = 0, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "Formal identifier for the property", formalDefinition = "Reference to the formal meaning of the property. One possible source of meaning is the [Concept Properties](codesystem-concept-properties.html) code system.")
    protected UriType uri;

    /**
     * A description of the property- why it is defined, and how its value might be
     * used.
     */
    @Child(name = "description", type = {
        StringType.class }, order = 3, min = 0, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "Why the property is defined, and/or what it conveys", formalDefinition = "A description of the property- why it is defined, and how its value might be used.")
    protected StringType description;

    /**
     * The type of the property value. Properties of type "code" contain a code
     * defined by the code system (e.g. a reference to another defined concept).
     */
    @Child(name = "type", type = { CodeType.class }, order = 4, min = 1, max = 1, modifier = false, summary = true)
    @Description(shortDefinition = "code | Coding | string | integer | boolean | dateTime | decimal", formalDefinition = "The type of the property value. Properties of type \"code\" contain a code defined by the code system (e.g. a reference to another defined concept).")
    @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/concept-property-type")
    protected Enumeration<PropertyType> type;

    private static final long serialVersionUID = -1810713373L;

    /**
     * Constructor
     */
    public PropertyComponent() {
      super();
    }

    /**
     * Constructor
     */
    public PropertyComponent(CodeType code, Enumeration<PropertyType> type) {
      super();
      this.code = code;
      this.type = type;
    }

    /**
     * @return {@link #code} (A code that is used to identify the property. The code
     *         is used internally (in CodeSystem.concept.property.code) and also
     *         externally, such as in property filters.). This is the underlying
     *         object with id, value and extensions. The accessor "getCode" gives
     *         direct access to the value
     */
    public CodeType getCodeElement() {
      if (this.code == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create PropertyComponent.code");
        else if (Configuration.doAutoCreate())
          this.code = new CodeType(); // bb
      return this.code;
    }

    public boolean hasCodeElement() {
      return this.code != null && !this.code.isEmpty();
    }

    public boolean hasCode() {
      return this.code != null && !this.code.isEmpty();
    }

    /**
     * @param value {@link #code} (A code that is used to identify the property. The
     *              code is used internally (in CodeSystem.concept.property.code)
     *              and also externally, such as in property filters.). This is the
     *              underlying object with id, value and extensions. The accessor
     *              "getCode" gives direct access to the value
     */
    public PropertyComponent setCodeElement(CodeType value) {
      this.code = value;
      return this;
    }

    /**
     * @return A code that is used to identify the property. The code is used
     *         internally (in CodeSystem.concept.property.code) and also externally,
     *         such as in property filters.
     */
    public String getCode() {
      return this.code == null ? null : this.code.getValue();
    }

    /**
     * @param value A code that is used to identify the property. The code is used
     *              internally (in CodeSystem.concept.property.code) and also
     *              externally, such as in property filters.
     */
    public PropertyComponent setCode(String value) {
      if (this.code == null)
        this.code = new CodeType();
      this.code.setValue(value);
      return this;
    }

    /**
     * @return {@link #uri} (Reference to the formal meaning of the property. One
     *         possible source of meaning is the [Concept
     *         Properties](codesystem-concept-properties.html) code system.). This
     *         is the underlying object with id, value and extensions. The accessor
     *         "getUri" gives direct access to the value
     */
    public UriType getUriElement() {
      if (this.uri == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create PropertyComponent.uri");
        else if (Configuration.doAutoCreate())
          this.uri = new UriType(); // bb
      return this.uri;
    }

    public boolean hasUriElement() {
      return this.uri != null && !this.uri.isEmpty();
    }

    public boolean hasUri() {
      return this.uri != null && !this.uri.isEmpty();
    }

    /**
     * @param value {@link #uri} (Reference to the formal meaning of the property.
     *              One possible source of meaning is the [Concept
     *              Properties](codesystem-concept-properties.html) code system.).
     *              This is the underlying object with id, value and extensions. The
     *              accessor "getUri" gives direct access to the value
     */
    public PropertyComponent setUriElement(UriType value) {
      this.uri = value;
      return this;
    }

    /**
     * @return Reference to the formal meaning of the property. One possible source
     *         of meaning is the [Concept
     *         Properties](codesystem-concept-properties.html) code system.
     */
    public String getUri() {
      return this.uri == null ? null : this.uri.getValue();
    }

    /**
     * @param value Reference to the formal meaning of the property. One possible
     *              source of meaning is the [Concept
     *              Properties](codesystem-concept-properties.html) code system.
     */
    public PropertyComponent setUri(String value) {
      if (Utilities.noString(value))
        this.uri = null;
      else {
        if (this.uri == null)
          this.uri = new UriType();
        this.uri.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #description} (A description of the property- why it is
     *         defined, and how its value might be used.). This is the underlying
     *         object with id, value and extensions. The accessor "getDescription"
     *         gives direct access to the value
     */
    public StringType getDescriptionElement() {
      if (this.description == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create PropertyComponent.description");
        else if (Configuration.doAutoCreate())
          this.description = new StringType(); // bb
      return this.description;
    }

    public boolean hasDescriptionElement() {
      return this.description != null && !this.description.isEmpty();
    }

    public boolean hasDescription() {
      return this.description != null && !this.description.isEmpty();
    }

    /**
     * @param value {@link #description} (A description of the property- why it is
     *              defined, and how its value might be used.). This is the
     *              underlying object with id, value and extensions. The accessor
     *              "getDescription" gives direct access to the value
     */
    public PropertyComponent setDescriptionElement(StringType value) {
      this.description = value;
      return this;
    }

    /**
     * @return A description of the property- why it is defined, and how its value
     *         might be used.
     */
    public String getDescription() {
      return this.description == null ? null : this.description.getValue();
    }

    /**
     * @param value A description of the property- why it is defined, and how its
     *              value might be used.
     */
    public PropertyComponent setDescription(String value) {
      if (Utilities.noString(value))
        this.description = null;
      else {
        if (this.description == null)
          this.description = new StringType();
        this.description.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #type} (The type of the property value. Properties of type
     *         "code" contain a code defined by the code system (e.g. a reference to
     *         another defined concept).). This is the underlying object with id,
     *         value and extensions. The accessor "getType" gives direct access to
     *         the value
     */
    public Enumeration<PropertyType> getTypeElement() {
      if (this.type == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create PropertyComponent.type");
        else if (Configuration.doAutoCreate())
          this.type = new Enumeration<PropertyType>(new PropertyTypeEnumFactory()); // bb
      return this.type;
    }

    public boolean hasTypeElement() {
      return this.type != null && !this.type.isEmpty();
    }

    public boolean hasType() {
      return this.type != null && !this.type.isEmpty();
    }

    /**
     * @param value {@link #type} (The type of the property value. Properties of
     *              type "code" contain a code defined by the code system (e.g. a
     *              reference to another defined concept).). This is the underlying
     *              object with id, value and extensions. The accessor "getType"
     *              gives direct access to the value
     */
    public PropertyComponent setTypeElement(Enumeration<PropertyType> value) {
      this.type = value;
      return this;
    }

    /**
     * @return The type of the property value. Properties of type "code" contain a
     *         code defined by the code system (e.g. a reference to another defined
     *         concept).
     */
    public PropertyType getType() {
      return this.type == null ? null : this.type.getValue();
    }

    /**
     * @param value The type of the property value. Properties of type "code"
     *              contain a code defined by the code system (e.g. a reference to
     *              another defined concept).
     */
    public PropertyComponent setType(PropertyType value) {
      if (this.type == null)
        this.type = new Enumeration<PropertyType>(new PropertyTypeEnumFactory());
      this.type.setValue(value);
      return this;
    }

    protected void listChildren(List<Property> children) {
      super.listChildren(children);
      children.add(new Property("code", "code",
          "A code that is used to identify the property. The code is used internally (in CodeSystem.concept.property.code) and also externally, such as in property filters.",
          0, 1, code));
      children.add(new Property("uri", "uri",
          "Reference to the formal meaning of the property. One possible source of meaning is the [Concept Properties](codesystem-concept-properties.html) code system.",
          0, 1, uri));
      children.add(new Property("description", "string",
          "A description of the property- why it is defined, and how its value might be used.", 0, 1, description));
      children.add(new Property("type", "code",
          "The type of the property value. Properties of type \"code\" contain a code defined by the code system (e.g. a reference to another defined concept).",
          0, 1, type));
    }

    @Override
    public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
      switch (_hash) {
      case 3059181:
        /* code */ return new Property("code", "code",
            "A code that is used to identify the property. The code is used internally (in CodeSystem.concept.property.code) and also externally, such as in property filters.",
            0, 1, code);
      case 116076:
        /* uri */ return new Property("uri", "uri",
            "Reference to the formal meaning of the property. One possible source of meaning is the [Concept Properties](codesystem-concept-properties.html) code system.",
            0, 1, uri);
      case -1724546052:
        /* description */ return new Property("description", "string",
            "A description of the property- why it is defined, and how its value might be used.", 0, 1, description);
      case 3575610:
        /* type */ return new Property("type", "code",
            "The type of the property value. Properties of type \"code\" contain a code defined by the code system (e.g. a reference to another defined concept).",
            0, 1, type);
      default:
        return super.getNamedProperty(_hash, _name, _checkValid);
      }

    }

    @Override
    public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return this.code == null ? new Base[0] : new Base[] { this.code }; // CodeType
      case 116076:
        /* uri */ return this.uri == null ? new Base[0] : new Base[] { this.uri }; // UriType
      case -1724546052:
        /* description */ return this.description == null ? new Base[0] : new Base[] { this.description }; // StringType
      case 3575610:
        /* type */ return this.type == null ? new Base[0] : new Base[] { this.type }; // Enumeration<PropertyType>
      default:
        return super.getProperty(hash, name, checkValid);
      }

    }

    @Override
    public Base setProperty(int hash, String name, Base value) throws FHIRException {
      switch (hash) {
      case 3059181: // code
        this.code = castToCode(value); // CodeType
        return value;
      case 116076: // uri
        this.uri = castToUri(value); // UriType
        return value;
      case -1724546052: // description
        this.description = castToString(value); // StringType
        return value;
      case 3575610: // type
        value = new PropertyTypeEnumFactory().fromType(castToCode(value));
        this.type = (Enumeration) value; // Enumeration<PropertyType>
        return value;
      default:
        return super.setProperty(hash, name, value);
      }

    }

    @Override
    public Base setProperty(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = castToCode(value); // CodeType
      } else if (name.equals("uri")) {
        this.uri = castToUri(value); // UriType
      } else if (name.equals("description")) {
        this.description = castToString(value); // StringType
      } else if (name.equals("type")) {
        value = new PropertyTypeEnumFactory().fromType(castToCode(value));
        this.type = (Enumeration) value; // Enumeration<PropertyType>
      } else
        return super.setProperty(name, value);
      return value;
    }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = null;
      } else if (name.equals("uri")) {
        this.uri = null;
      } else if (name.equals("description")) {
        this.description = null;
      } else if (name.equals("type")) {
        this.type = null;
      } else
        super.removeChild(name, value);
      
    }

    @Override
    public Base makeProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        return getCodeElement();
      case 116076:
        return getUriElement();
      case -1724546052:
        return getDescriptionElement();
      case 3575610:
        return getTypeElement();
      default:
        return super.makeProperty(hash, name);
      }

    }

    @Override
    public String[] getTypesForProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return new String[] { "code" };
      case 116076:
        /* uri */ return new String[] { "uri" };
      case -1724546052:
        /* description */ return new String[] { "string" };
      case 3575610:
        /* type */ return new String[] { "code" };
      default:
        return super.getTypesForProperty(hash, name);
      }

    }

    @Override
    public Base addChild(String name) throws FHIRException {
      if (name.equals("code")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.code");
      } else if (name.equals("uri")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.uri");
      } else if (name.equals("description")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.description");
      } else if (name.equals("type")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.type");
      } else
        return super.addChild(name);
    }

    public PropertyComponent copy() {
      PropertyComponent dst = new PropertyComponent();
      copyValues(dst);
      return dst;
    }

    public void copyValues(PropertyComponent dst) {
      super.copyValues(dst);
      dst.code = code == null ? null : code.copy();
      dst.uri = uri == null ? null : uri.copy();
      dst.description = description == null ? null : description.copy();
      dst.type = type == null ? null : type.copy();
    }

    @Override
    public boolean equalsDeep(Base other_) {
      if (!super.equalsDeep(other_))
        return false;
      if (!(other_ instanceof PropertyComponent))
        return false;
      PropertyComponent o = (PropertyComponent) other_;
      return compareDeep(code, o.code, true) && compareDeep(uri, o.uri, true)
          && compareDeep(description, o.description, true) && compareDeep(type, o.type, true);
    }

    @Override
    public boolean equalsShallow(Base other_) {
      if (!super.equalsShallow(other_))
        return false;
      if (!(other_ instanceof PropertyComponent))
        return false;
      PropertyComponent o = (PropertyComponent) other_;
      return compareValues(code, o.code, true) && compareValues(uri, o.uri, true)
          && compareValues(description, o.description, true) && compareValues(type, o.type, true);
    }

    public boolean isEmpty() {
      return super.isEmpty() && ca.uhn.fhir.util.ElementUtil.isEmpty(code, uri, description, type);
    }

    public String fhirType() {
      return "CodeSystem.property";

    }

  }

  @Block()
  public static class ConceptDefinitionComponent extends BackboneElement implements IBaseBackboneElement {
    /**
     * A code - a text symbol - that uniquely identifies the concept within the code
     * system.
     */
    @Child(name = "code", type = { CodeType.class }, order = 1, min = 1, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Code that identifies concept", formalDefinition = "A code - a text symbol - that uniquely identifies the concept within the code system.")
    protected CodeType code;

    /**
     * A human readable string that is the recommended default way to present this
     * concept to a user.
     */
    @Child(name = "display", type = {
        StringType.class }, order = 2, min = 0, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Text to display to the user", formalDefinition = "A human readable string that is the recommended default way to present this concept to a user.")
    protected StringType display;

    /**
     * The formal definition of the concept. The code system resource does not make
     * formal definitions required, because of the prevalence of legacy systems.
     * However, they are highly recommended, as without them there is no formal
     * meaning associated with the concept.
     */
    @Child(name = "definition", type = {
        StringType.class }, order = 3, min = 0, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Formal definition", formalDefinition = "The formal definition of the concept. The code system resource does not make formal definitions required, because of the prevalence of legacy systems. However, they are highly recommended, as without them there is no formal meaning associated with the concept.")
    protected StringType definition;

    /**
     * Additional representations for the concept - other languages, aliases,
     * specialized purposes, used for particular purposes, etc.
     */
    @Child(name = "designation", type = {}, order = 4, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = false)
    @Description(shortDefinition = "Additional representations for the concept", formalDefinition = "Additional representations for the concept - other languages, aliases, specialized purposes, used for particular purposes, etc.")
    protected List<ConceptDefinitionDesignationComponent> designation;

    /**
     * A property value for this concept.
     */
    @Child(name = "property", type = {}, order = 5, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = false)
    @Description(shortDefinition = "Property value for the concept", formalDefinition = "A property value for this concept.")
    protected List<ConceptPropertyComponent> property;

    /**
     * Defines children of a concept to produce a hierarchy of concepts. The nature
     * of the relationships is variable (is-a/contains/categorizes) - see
     * hierarchyMeaning.
     */
    @Child(name = "concept", type = {
        ConceptDefinitionComponent.class }, order = 6, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = false)
    @Description(shortDefinition = "Child Concepts (is-a/contains/categorizes)", formalDefinition = "Defines children of a concept to produce a hierarchy of concepts. The nature of the relationships is variable (is-a/contains/categorizes) - see hierarchyMeaning.")
    protected List<ConceptDefinitionComponent> concept;

    private static final long serialVersionUID = 878320988L;

    /**
     * Constructor
     */
    public ConceptDefinitionComponent() {
      super();
    }

    /**
     * Constructor
     */
    public ConceptDefinitionComponent(CodeType code) {
      super();
      this.code = code;
    }

    /**
     * @return {@link #code} (A code - a text symbol - that uniquely identifies the
     *         concept within the code system.). This is the underlying object with
     *         id, value and extensions. The accessor "getCode" gives direct access
     *         to the value
     */
    public CodeType getCodeElement() {
      if (this.code == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionComponent.code");
        else if (Configuration.doAutoCreate())
          this.code = new CodeType(); // bb
      return this.code;
    }

    public boolean hasCodeElement() {
      return this.code != null && !this.code.isEmpty();
    }

    public boolean hasCode() {
      return this.code != null && !this.code.isEmpty();
    }

    /**
     * @param value {@link #code} (A code - a text symbol - that uniquely identifies
     *              the concept within the code system.). This is the underlying
     *              object with id, value and extensions. The accessor "getCode"
     *              gives direct access to the value
     */
    public ConceptDefinitionComponent setCodeElement(CodeType value) {
      this.code = value;
      return this;
    }

    /**
     * @return A code - a text symbol - that uniquely identifies the concept within
     *         the code system.
     */
    public String getCode() {
      return this.code == null ? null : this.code.getValue();
    }

    /**
     * @param value A code - a text symbol - that uniquely identifies the concept
     *              within the code system.
     */
    public ConceptDefinitionComponent setCode(String value) {
      if (this.code == null)
        this.code = new CodeType();
      this.code.setValue(value);
      return this;
    }

    /**
     * @return {@link #display} (A human readable string that is the recommended
     *         default way to present this concept to a user.). This is the
     *         underlying object with id, value and extensions. The accessor
     *         "getDisplay" gives direct access to the value
     */
    public StringType getDisplayElement() {
      if (this.display == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionComponent.display");
        else if (Configuration.doAutoCreate())
          this.display = new StringType(); // bb
      return this.display;
    }

    public boolean hasDisplayElement() {
      return this.display != null && !this.display.isEmpty();
    }

    public boolean hasDisplay() {
      return this.display != null && !this.display.isEmpty();
    }

    /**
     * @param value {@link #display} (A human readable string that is the
     *              recommended default way to present this concept to a user.).
     *              This is the underlying object with id, value and extensions. The
     *              accessor "getDisplay" gives direct access to the value
     */
    public ConceptDefinitionComponent setDisplayElement(StringType value) {
      this.display = value;
      return this;
    }

    /**
     * @return A human readable string that is the recommended default way to
     *         present this concept to a user.
     */
    public String getDisplay() {
      return this.display == null ? null : this.display.getValue();
    }

    /**
     * @param value A human readable string that is the recommended default way to
     *              present this concept to a user.
     */
    public ConceptDefinitionComponent setDisplay(String value) {
      if (Utilities.noString(value))
        this.display = null;
      else {
        if (this.display == null)
          this.display = new StringType();
        this.display.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #definition} (The formal definition of the concept. The code
     *         system resource does not make formal definitions required, because of
     *         the prevalence of legacy systems. However, they are highly
     *         recommended, as without them there is no formal meaning associated
     *         with the concept.). This is the underlying object with id, value and
     *         extensions. The accessor "getDefinition" gives direct access to the
     *         value
     */
    public StringType getDefinitionElement() {
      if (this.definition == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionComponent.definition");
        else if (Configuration.doAutoCreate())
          this.definition = new StringType(); // bb
      return this.definition;
    }

    public boolean hasDefinitionElement() {
      return this.definition != null && !this.definition.isEmpty();
    }

    public boolean hasDefinition() {
      return this.definition != null && !this.definition.isEmpty();
    }

    /**
     * @param value {@link #definition} (The formal definition of the concept. The
     *              code system resource does not make formal definitions required,
     *              because of the prevalence of legacy systems. However, they are
     *              highly recommended, as without them there is no formal meaning
     *              associated with the concept.). This is the underlying object
     *              with id, value and extensions. The accessor "getDefinition"
     *              gives direct access to the value
     */
    public ConceptDefinitionComponent setDefinitionElement(StringType value) {
      this.definition = value;
      return this;
    }

    /**
     * @return The formal definition of the concept. The code system resource does
     *         not make formal definitions required, because of the prevalence of
     *         legacy systems. However, they are highly recommended, as without them
     *         there is no formal meaning associated with the concept.
     */
    public String getDefinition() {
      return this.definition == null ? null : this.definition.getValue();
    }

    /**
     * @param value The formal definition of the concept. The code system resource
     *              does not make formal definitions required, because of the
     *              prevalence of legacy systems. However, they are highly
     *              recommended, as without them there is no formal meaning
     *              associated with the concept.
     */
    public ConceptDefinitionComponent setDefinition(String value) {
      if (Utilities.noString(value))
        this.definition = null;
      else {
        if (this.definition == null)
          this.definition = new StringType();
        this.definition.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #designation} (Additional representations for the concept -
     *         other languages, aliases, specialized purposes, used for particular
     *         purposes, etc.)
     */
    public List<ConceptDefinitionDesignationComponent> getDesignation() {
      if (this.designation == null)
        this.designation = new ArrayList<ConceptDefinitionDesignationComponent>();
      return this.designation;
    }

    /**
     * @return Returns a reference to <code>this</code> for easy method chaining
     */
    public ConceptDefinitionComponent setDesignation(List<ConceptDefinitionDesignationComponent> theDesignation) {
      this.designation = theDesignation;
      return this;
    }

    public boolean hasDesignation() {
      if (this.designation == null)
        return false;
      for (ConceptDefinitionDesignationComponent item : this.designation)
        if (!item.isEmpty())
          return true;
      return false;
    }

    public ConceptDefinitionDesignationComponent addDesignation() { // 3
      ConceptDefinitionDesignationComponent t = new ConceptDefinitionDesignationComponent();
      if (this.designation == null)
        this.designation = new ArrayList<ConceptDefinitionDesignationComponent>();
      this.designation.add(t);
      return t;
    }

    public ConceptDefinitionComponent addDesignation(ConceptDefinitionDesignationComponent t) { // 3
      if (t == null)
        return this;
      if (this.designation == null)
        this.designation = new ArrayList<ConceptDefinitionDesignationComponent>();
      this.designation.add(t);
      return this;
    }

    /**
     * @return The first repetition of repeating field {@link #designation},
     *         creating it if it does not already exist
     */
    public ConceptDefinitionDesignationComponent getDesignationFirstRep() {
      if (getDesignation().isEmpty()) {
        addDesignation();
      }
      return getDesignation().get(0);
    }

    /**
     * @return {@link #property} (A property value for this concept.)
     */
    public List<ConceptPropertyComponent> getProperty() {
      if (this.property == null)
        this.property = new ArrayList<ConceptPropertyComponent>();
      return this.property;
    }

    /**
     * @return Returns a reference to <code>this</code> for easy method chaining
     */
    public ConceptDefinitionComponent setProperty(List<ConceptPropertyComponent> theProperty) {
      this.property = theProperty;
      return this;
    }

    public boolean hasProperty() {
      if (this.property == null)
        return false;
      for (ConceptPropertyComponent item : this.property)
        if (!item.isEmpty())
          return true;
      return false;
    }

    public ConceptPropertyComponent addProperty() { // 3
      ConceptPropertyComponent t = new ConceptPropertyComponent();
      if (this.property == null)
        this.property = new ArrayList<ConceptPropertyComponent>();
      this.property.add(t);
      return t;
    }

    public ConceptDefinitionComponent addProperty(ConceptPropertyComponent t) { // 3
      if (t == null)
        return this;
      if (this.property == null)
        this.property = new ArrayList<ConceptPropertyComponent>();
      this.property.add(t);
      return this;
    }

    /**
     * @return The first repetition of repeating field {@link #property}, creating
     *         it if it does not already exist
     */
    public ConceptPropertyComponent getPropertyFirstRep() {
      if (getProperty().isEmpty()) {
        addProperty();
      }
      return getProperty().get(0);
    }

    /**
     * @return {@link #concept} (Defines children of a concept to produce a
     *         hierarchy of concepts. The nature of the relationships is variable
     *         (is-a/contains/categorizes) - see hierarchyMeaning.)
     */
    public List<ConceptDefinitionComponent> getConcept() {
      if (this.concept == null)
        this.concept = new ArrayList<ConceptDefinitionComponent>();
      return this.concept;
    }

    /**
     * @return Returns a reference to <code>this</code> for easy method chaining
     */
    public ConceptDefinitionComponent setConcept(List<ConceptDefinitionComponent> theConcept) {
      this.concept = theConcept;
      return this;
    }

    public boolean hasConcept() {
      if (this.concept == null)
        return false;
      for (ConceptDefinitionComponent item : this.concept)
        if (!item.isEmpty())
          return true;
      return false;
    }

    public ConceptDefinitionComponent addConcept() { // 3
      ConceptDefinitionComponent t = new ConceptDefinitionComponent();
      if (this.concept == null)
        this.concept = new ArrayList<ConceptDefinitionComponent>();
      this.concept.add(t);
      return t;
    }

    public ConceptDefinitionComponent addConcept(ConceptDefinitionComponent t) { // 3
      if (t == null)
        return this;
      if (this.concept == null)
        this.concept = new ArrayList<ConceptDefinitionComponent>();
      this.concept.add(t);
      return this;
    }

    /**
     * @return The first repetition of repeating field {@link #concept}, creating it
     *         if it does not already exist
     */
    public ConceptDefinitionComponent getConceptFirstRep() {
      if (getConcept().isEmpty()) {
        addConcept();
      }
      return getConcept().get(0);
    }

    protected void listChildren(List<Property> children) {
      super.listChildren(children);
      children.add(new Property("code", "code",
          "A code - a text symbol - that uniquely identifies the concept within the code system.", 0, 1, code));
      children.add(new Property("display", "string",
          "A human readable string that is the recommended default way to present this concept to a user.", 0, 1,
          display));
      children.add(new Property("definition", "string",
          "The formal definition of the concept. The code system resource does not make formal definitions required, because of the prevalence of legacy systems. However, they are highly recommended, as without them there is no formal meaning associated with the concept.",
          0, 1, definition));
      children.add(new Property("designation", "",
          "Additional representations for the concept - other languages, aliases, specialized purposes, used for particular purposes, etc.",
          0, java.lang.Integer.MAX_VALUE, designation));
      children.add(
          new Property("property", "", "A property value for this concept.", 0, java.lang.Integer.MAX_VALUE, property));
      children.add(new Property("concept", "@CodeSystem.concept",
          "Defines children of a concept to produce a hierarchy of concepts. The nature of the relationships is variable (is-a/contains/categorizes) - see hierarchyMeaning.",
          0, java.lang.Integer.MAX_VALUE, concept));
    }

    @Override
    public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
      switch (_hash) {
      case 3059181:
        /* code */ return new Property("code", "code",
            "A code - a text symbol - that uniquely identifies the concept within the code system.", 0, 1, code);
      case 1671764162:
        /* display */ return new Property("display", "string",
            "A human readable string that is the recommended default way to present this concept to a user.", 0, 1,
            display);
      case -1014418093:
        /* definition */ return new Property("definition", "string",
            "The formal definition of the concept. The code system resource does not make formal definitions required, because of the prevalence of legacy systems. However, they are highly recommended, as without them there is no formal meaning associated with the concept.",
            0, 1, definition);
      case -900931593:
        /* designation */ return new Property("designation", "",
            "Additional representations for the concept - other languages, aliases, specialized purposes, used for particular purposes, etc.",
            0, java.lang.Integer.MAX_VALUE, designation);
      case -993141291:
        /* property */ return new Property("property", "", "A property value for this concept.", 0,
            java.lang.Integer.MAX_VALUE, property);
      case 951024232:
        /* concept */ return new Property("concept", "@CodeSystem.concept",
            "Defines children of a concept to produce a hierarchy of concepts. The nature of the relationships is variable (is-a/contains/categorizes) - see hierarchyMeaning.",
            0, java.lang.Integer.MAX_VALUE, concept);
      default:
        return super.getNamedProperty(_hash, _name, _checkValid);
      }

    }

    @Override
    public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return this.code == null ? new Base[0] : new Base[] { this.code }; // CodeType
      case 1671764162:
        /* display */ return this.display == null ? new Base[0] : new Base[] { this.display }; // StringType
      case -1014418093:
        /* definition */ return this.definition == null ? new Base[0] : new Base[] { this.definition }; // StringType
      case -900931593:
        /* designation */ return this.designation == null ? new Base[0]
            : this.designation.toArray(new Base[this.designation.size()]); // ConceptDefinitionDesignationComponent
      case -993141291:
        /* property */ return this.property == null ? new Base[0]
            : this.property.toArray(new Base[this.property.size()]); // ConceptPropertyComponent
      case 951024232:
        /* concept */ return this.concept == null ? new Base[0] : this.concept.toArray(new Base[this.concept.size()]); // ConceptDefinitionComponent
      default:
        return super.getProperty(hash, name, checkValid);
      }

    }

    @Override
    public Base setProperty(int hash, String name, Base value) throws FHIRException {
      switch (hash) {
      case 3059181: // code
        this.code = castToCode(value); // CodeType
        return value;
      case 1671764162: // display
        this.display = castToString(value); // StringType
        return value;
      case -1014418093: // definition
        this.definition = castToString(value); // StringType
        return value;
      case -900931593: // designation
        this.getDesignation().add((ConceptDefinitionDesignationComponent) value); // ConceptDefinitionDesignationComponent
        return value;
      case -993141291: // property
        this.getProperty().add((ConceptPropertyComponent) value); // ConceptPropertyComponent
        return value;
      case 951024232: // concept
        this.getConcept().add((ConceptDefinitionComponent) value); // ConceptDefinitionComponent
        return value;
      default:
        return super.setProperty(hash, name, value);
      }

    }

    @Override
    public Base setProperty(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = castToCode(value); // CodeType
      } else if (name.equals("display")) {
        this.display = castToString(value); // StringType
      } else if (name.equals("definition")) {
        this.definition = castToString(value); // StringType
      } else if (name.equals("designation")) {
        this.getDesignation().add((ConceptDefinitionDesignationComponent) value);
      } else if (name.equals("property")) {
        this.getProperty().add((ConceptPropertyComponent) value);
      } else if (name.equals("concept")) {
        this.getConcept().add((ConceptDefinitionComponent) value);
      } else
        return super.setProperty(name, value);
      return value;
    }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = null;
      } else if (name.equals("display")) {
        this.display = null;
      } else if (name.equals("definition")) {
        this.definition = null;
      } else if (name.equals("designation")) {
        this.getDesignation().remove((ConceptDefinitionDesignationComponent) value);
      } else if (name.equals("property")) {
        this.getProperty().remove((ConceptPropertyComponent) value);
      } else if (name.equals("concept")) {
        this.getConcept().remove((ConceptDefinitionComponent) value);
      } else
        super.removeChild(name, value);
      
    }

    @Override
    public Base makeProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        return getCodeElement();
      case 1671764162:
        return getDisplayElement();
      case -1014418093:
        return getDefinitionElement();
      case -900931593:
        return addDesignation();
      case -993141291:
        return addProperty();
      case 951024232:
        return addConcept();
      default:
        return super.makeProperty(hash, name);
      }

    }

    @Override
    public String[] getTypesForProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return new String[] { "code" };
      case 1671764162:
        /* display */ return new String[] { "string" };
      case -1014418093:
        /* definition */ return new String[] { "string" };
      case -900931593:
        /* designation */ return new String[] {};
      case -993141291:
        /* property */ return new String[] {};
      case 951024232:
        /* concept */ return new String[] { "@CodeSystem.concept" };
      default:
        return super.getTypesForProperty(hash, name);
      }

    }

    @Override
    public Base addChild(String name) throws FHIRException {
      if (name.equals("code")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.code");
      } else if (name.equals("display")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.display");
      } else if (name.equals("definition")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.definition");
      } else if (name.equals("designation")) {
        return addDesignation();
      } else if (name.equals("property")) {
        return addProperty();
      } else if (name.equals("concept")) {
        return addConcept();
      } else
        return super.addChild(name);
    }

    public ConceptDefinitionComponent copy() {
      ConceptDefinitionComponent dst = new ConceptDefinitionComponent();
      copyValues(dst);
      return dst;
    }

    public void copyValues(ConceptDefinitionComponent dst) {
      super.copyValues(dst);
      dst.code = code == null ? null : code.copy();
      dst.display = display == null ? null : display.copy();
      dst.definition = definition == null ? null : definition.copy();
      if (designation != null) {
        dst.designation = new ArrayList<ConceptDefinitionDesignationComponent>();
        for (ConceptDefinitionDesignationComponent i : designation)
          dst.designation.add(i.copy());
      }
      ;
      if (property != null) {
        dst.property = new ArrayList<ConceptPropertyComponent>();
        for (ConceptPropertyComponent i : property)
          dst.property.add(i.copy());
      }
      ;
      if (concept != null) {
        dst.concept = new ArrayList<ConceptDefinitionComponent>();
        for (ConceptDefinitionComponent i : concept)
          dst.concept.add(i.copy());
      }
      ;
    }

    @Override
    public boolean equalsDeep(Base other_) {
      if (!super.equalsDeep(other_))
        return false;
      if (!(other_ instanceof ConceptDefinitionComponent))
        return false;
      ConceptDefinitionComponent o = (ConceptDefinitionComponent) other_;
      return compareDeep(code, o.code, true) && compareDeep(display, o.display, true)
          && compareDeep(definition, o.definition, true) && compareDeep(designation, o.designation, true)
          && compareDeep(property, o.property, true) && compareDeep(concept, o.concept, true);
    }

    @Override
    public boolean equalsShallow(Base other_) {
      if (!super.equalsShallow(other_))
        return false;
      if (!(other_ instanceof ConceptDefinitionComponent))
        return false;
      ConceptDefinitionComponent o = (ConceptDefinitionComponent) other_;
      return compareValues(code, o.code, true) && compareValues(display, o.display, true)
          && compareValues(definition, o.definition, true);
    }

    public boolean isEmpty() {
      return super.isEmpty()
          && ca.uhn.fhir.util.ElementUtil.isEmpty(code, display, definition, designation, property, concept);
    }

    public String fhirType() {
      return "CodeSystem.concept";

    }

    public ConceptPropertyComponent forceProperty(String code) {
      for (ConceptPropertyComponent prop : getProperty()) {
        if (code.equals(prop.getCode())) {
          return prop;
        }
      }
      return addProperty().setCode(code);
    }

  }

  @Block()
  public static class ConceptDefinitionDesignationComponent extends BackboneElement implements IBaseBackboneElement {
    /**
     * The language this designation is defined for.
     */
    @Child(name = "language", type = { CodeType.class }, order = 1, min = 0, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Human language of the designation", formalDefinition = "The language this designation is defined for.")
    @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/languages")
    protected CodeType language;

    /**
     * A code that details how this designation would be used.
     */
    @Child(name = "use", type = { Coding.class }, order = 2, min = 0, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Details how this designation would be used", formalDefinition = "A code that details how this designation would be used.")
    @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/designation-use")
    protected Coding use;

    /**
     * The text value for this designation.
     */
    @Child(name = "value", type = { StringType.class }, order = 3, min = 1, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "The text value for this designation", formalDefinition = "The text value for this designation.")
    protected StringType value;

    private static final long serialVersionUID = 1515662414L;

    /**
     * Constructor
     */
    public ConceptDefinitionDesignationComponent() {
      super();
    }

    /**
     * Constructor
     */
    public ConceptDefinitionDesignationComponent(StringType value) {
      super();
      this.value = value;
    }

    /**
     * @return {@link #language} (The language this designation is defined for.).
     *         This is the underlying object with id, value and extensions. The
     *         accessor "getLanguage" gives direct access to the value
     */
    public CodeType getLanguageElement() {
      if (this.language == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionDesignationComponent.language");
        else if (Configuration.doAutoCreate())
          this.language = new CodeType(); // bb
      return this.language;
    }

    public boolean hasLanguageElement() {
      return this.language != null && !this.language.isEmpty();
    }

    public boolean hasLanguage() {
      return this.language != null && !this.language.isEmpty();
    }

    /**
     * @param value {@link #language} (The language this designation is defined
     *              for.). This is the underlying object with id, value and
     *              extensions. The accessor "getLanguage" gives direct access to
     *              the value
     */
    public ConceptDefinitionDesignationComponent setLanguageElement(CodeType value) {
      this.language = value;
      return this;
    }

    /**
     * @return The language this designation is defined for.
     */
    public String getLanguage() {
      return this.language == null ? null : this.language.getValue();
    }

    /**
     * @param value The language this designation is defined for.
     */
    public ConceptDefinitionDesignationComponent setLanguage(String value) {
      if (Utilities.noString(value))
        this.language = null;
      else {
        if (this.language == null)
          this.language = new CodeType();
        this.language.setValue(value);
      }
      return this;
    }

    /**
     * @return {@link #use} (A code that details how this designation would be
     *         used.)
     */
    public Coding getUse() {
      if (this.use == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionDesignationComponent.use");
        else if (Configuration.doAutoCreate())
          this.use = new Coding(); // cc
      return this.use;
    }

    public boolean hasUse() {
      return this.use != null && !this.use.isEmpty();
    }

    /**
     * @param value {@link #use} (A code that details how this designation would be
     *              used.)
     */
    public ConceptDefinitionDesignationComponent setUse(Coding value) {
      this.use = value;
      return this;
    }

    /**
     * @return {@link #value} (The text value for this designation.). This is the
     *         underlying object with id, value and extensions. The accessor
     *         "getValue" gives direct access to the value
     */
    public StringType getValueElement() {
      if (this.value == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptDefinitionDesignationComponent.value");
        else if (Configuration.doAutoCreate())
          this.value = new StringType(); // bb
      return this.value;
    }

    public boolean hasValueElement() {
      return this.value != null && !this.value.isEmpty();
    }

    public boolean hasValue() {
      return this.value != null && !this.value.isEmpty();
    }

    /**
     * @param value {@link #value} (The text value for this designation.). This is
     *              the underlying object with id, value and extensions. The
     *              accessor "getValue" gives direct access to the value
     */
    public ConceptDefinitionDesignationComponent setValueElement(StringType value) {
      this.value = value;
      return this;
    }

    /**
     * @return The text value for this designation.
     */
    public String getValue() {
      return this.value == null ? null : this.value.getValue();
    }

    /**
     * @param value The text value for this designation.
     */
    public ConceptDefinitionDesignationComponent setValue(String value) {
      if (this.value == null)
        this.value = new StringType();
      this.value.setValue(value);
      return this;
    }

    protected void listChildren(List<Property> children) {
      super.listChildren(children);
      children.add(new Property("language", "code", "The language this designation is defined for.", 0, 1, language));
      children.add(new Property("use", "Coding", "A code that details how this designation would be used.", 0, 1, use));
      children.add(new Property("value", "string", "The text value for this designation.", 0, 1, value));
    }

    @Override
    public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
      switch (_hash) {
      case -1613589672:
        /* language */ return new Property("language", "code", "The language this designation is defined for.", 0, 1,
            language);
      case 116103:
        /* use */ return new Property("use", "Coding", "A code that details how this designation would be used.", 0, 1,
            use);
      case 111972721:
        /* value */ return new Property("value", "string", "The text value for this designation.", 0, 1, value);
      default:
        return super.getNamedProperty(_hash, _name, _checkValid);
      }

    }

    @Override
    public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
      switch (hash) {
      case -1613589672:
        /* language */ return this.language == null ? new Base[0] : new Base[] { this.language }; // CodeType
      case 116103:
        /* use */ return this.use == null ? new Base[0] : new Base[] { this.use }; // Coding
      case 111972721:
        /* value */ return this.value == null ? new Base[0] : new Base[] { this.value }; // StringType
      default:
        return super.getProperty(hash, name, checkValid);
      }

    }

    @Override
    public Base setProperty(int hash, String name, Base value) throws FHIRException {
      switch (hash) {
      case -1613589672: // language
        this.language = castToCode(value); // CodeType
        return value;
      case 116103: // use
        this.use = castToCoding(value); // Coding
        return value;
      case 111972721: // value
        this.value = castToString(value); // StringType
        return value;
      default:
        return super.setProperty(hash, name, value);
      }

    }

    @Override
    public Base setProperty(String name, Base value) throws FHIRException {
      if (name.equals("language")) {
        this.language = castToCode(value); // CodeType
      } else if (name.equals("use")) {
        this.use = castToCoding(value); // Coding
      } else if (name.equals("value")) {
        this.value = castToString(value); // StringType
      } else
        return super.setProperty(name, value);
      return value;
    }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
      if (name.equals("language")) {
        this.language = null;
      } else if (name.equals("use")) {
        this.use = null;
      } else if (name.equals("value")) {
        this.value = null;
      } else
        super.removeChild(name, value);
      
    }

    @Override
    public Base makeProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case -1613589672:
        return getLanguageElement();
      case 116103:
        return getUse();
      case 111972721:
        return getValueElement();
      default:
        return super.makeProperty(hash, name);
      }

    }

    @Override
    public String[] getTypesForProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case -1613589672:
        /* language */ return new String[] { "code" };
      case 116103:
        /* use */ return new String[] { "Coding" };
      case 111972721:
        /* value */ return new String[] { "string" };
      default:
        return super.getTypesForProperty(hash, name);
      }

    }

    @Override
    public Base addChild(String name) throws FHIRException {
      if (name.equals("language")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.language");
      } else if (name.equals("use")) {
        this.use = new Coding();
        return this.use;
      } else if (name.equals("value")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.value");
      } else
        return super.addChild(name);
    }

    public ConceptDefinitionDesignationComponent copy() {
      ConceptDefinitionDesignationComponent dst = new ConceptDefinitionDesignationComponent();
      copyValues(dst);
      return dst;
    }

    public void copyValues(ConceptDefinitionDesignationComponent dst) {
      super.copyValues(dst);
      dst.language = language == null ? null : language.copy();
      dst.use = use == null ? null : use.copy();
      dst.value = value == null ? null : value.copy();
    }

    @Override
    public boolean equalsDeep(Base other_) {
      if (!super.equalsDeep(other_))
        return false;
      if (!(other_ instanceof ConceptDefinitionDesignationComponent))
        return false;
      ConceptDefinitionDesignationComponent o = (ConceptDefinitionDesignationComponent) other_;
      return compareDeep(language, o.language, true) && compareDeep(use, o.use, true)
          && compareDeep(value, o.value, true);
    }

    @Override
    public boolean equalsShallow(Base other_) {
      if (!super.equalsShallow(other_))
        return false;
      if (!(other_ instanceof ConceptDefinitionDesignationComponent))
        return false;
      ConceptDefinitionDesignationComponent o = (ConceptDefinitionDesignationComponent) other_;
      return compareValues(language, o.language, true) && compareValues(value, o.value, true);
    }

    public boolean isEmpty() {
      return super.isEmpty() && ca.uhn.fhir.util.ElementUtil.isEmpty(language, use, value);
    }

    public String fhirType() {
      return "CodeSystem.concept.designation";

    }

  }

  @Block()
  public static class ConceptPropertyComponent extends BackboneElement implements IBaseBackboneElement {
    /**
     * A code that is a reference to CodeSystem.property.code.
     */
    @Child(name = "code", type = { CodeType.class }, order = 1, min = 1, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Reference to CodeSystem.property.code", formalDefinition = "A code that is a reference to CodeSystem.property.code.")
    protected CodeType code;

    /**
     * The value of this property.
     */
    @Child(name = "value", type = { CodeType.class, Coding.class, StringType.class, IntegerType.class,
        BooleanType.class, DateTimeType.class,
        DecimalType.class }, order = 2, min = 1, max = 1, modifier = false, summary = false)
    @Description(shortDefinition = "Value of the property for this concept", formalDefinition = "The value of this property.")
    protected Type value;

    private static final long serialVersionUID = 1742812311L;

    /**
     * Constructor
     */
    public ConceptPropertyComponent() {
      super();
    }

    /**
     * Constructor
     */
    public ConceptPropertyComponent(CodeType code, Type value) {
      super();
      this.code = code;
      this.value = value;
    }

    /**
     * @return {@link #code} (A code that is a reference to
     *         CodeSystem.property.code.). This is the underlying object with id,
     *         value and extensions. The accessor "getCode" gives direct access to
     *         the value
     */
    public CodeType getCodeElement() {
      if (this.code == null)
        if (Configuration.errorOnAutoCreate())
          throw new Error("Attempt to auto-create ConceptPropertyComponent.code");
        else if (Configuration.doAutoCreate())
          this.code = new CodeType(); // bb
      return this.code;
    }

    public boolean hasCodeElement() {
      return this.code != null && !this.code.isEmpty();
    }

    public boolean hasCode() {
      return this.code != null && !this.code.isEmpty();
    }

    /**
     * @param value {@link #code} (A code that is a reference to
     *              CodeSystem.property.code.). This is the underlying object with
     *              id, value and extensions. The accessor "getCode" gives direct
     *              access to the value
     */
    public ConceptPropertyComponent setCodeElement(CodeType value) {
      this.code = value;
      return this;
    }

    /**
     * @return A code that is a reference to CodeSystem.property.code.
     */
    public String getCode() {
      return this.code == null ? null : this.code.getValue();
    }

    /**
     * @param value A code that is a reference to CodeSystem.property.code.
     */
    public ConceptPropertyComponent setCode(String value) {
      if (this.code == null)
        this.code = new CodeType();
      this.code.setValue(value);
      return this;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public Type getValue() {
      return this.value;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public CodeType getValueCodeType() throws FHIRException {
      if (this.value == null)
        this.value = new CodeType();
      if (!(this.value instanceof CodeType))
        throw new FHIRException("Type mismatch: the type CodeType was expected, but " + this.value.getClass().getName()
            + " was encountered");
      return (CodeType) this.value;
    }

    public boolean hasValueCodeType() {
      return this != null && this.value instanceof CodeType;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public Coding getValueCoding() throws FHIRException {
      if (this.value == null)
        this.value = new Coding();
      if (!(this.value instanceof Coding))
        throw new FHIRException(
            "Type mismatch: the type Coding was expected, but " + this.value.getClass().getName() + " was encountered");
      return (Coding) this.value;
    }

    public boolean hasValueCoding() {
      return this != null && this.value instanceof Coding;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public StringType getValueStringType() throws FHIRException {
      if (this.value == null)
        this.value = new StringType();
      if (!(this.value instanceof StringType))
        throw new FHIRException("Type mismatch: the type StringType was expected, but "
            + this.value.getClass().getName() + " was encountered");
      return (StringType) this.value;
    }

    public boolean hasValueStringType() {
      return this != null && this.value instanceof StringType;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public IntegerType getValueIntegerType() throws FHIRException {
      if (this.value == null)
        this.value = new IntegerType();
      if (!(this.value instanceof IntegerType))
        throw new FHIRException("Type mismatch: the type IntegerType was expected, but "
            + this.value.getClass().getName() + " was encountered");
      return (IntegerType) this.value;
    }

    public boolean hasValueIntegerType() {
      return this != null && this.value instanceof IntegerType;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public BooleanType getValueBooleanType() throws FHIRException {
      if (this.value == null)
        this.value = new BooleanType();
      if (!(this.value instanceof BooleanType))
        throw new FHIRException("Type mismatch: the type BooleanType was expected, but "
            + this.value.getClass().getName() + " was encountered");
      return (BooleanType) this.value;
    }

    public boolean hasValueBooleanType() {
      return this != null && this.value instanceof BooleanType;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public DateTimeType getValueDateTimeType() throws FHIRException {
      if (this.value == null)
        this.value = new DateTimeType();
      if (!(this.value instanceof DateTimeType))
        throw new FHIRException("Type mismatch: the type DateTimeType was expected, but "
            + this.value.getClass().getName() + " was encountered");
      return (DateTimeType) this.value;
    }

    public boolean hasValueDateTimeType() {
      return this != null && this.value instanceof DateTimeType;
    }

    /**
     * @return {@link #value} (The value of this property.)
     */
    public DecimalType getValueDecimalType() throws FHIRException {
      if (this.value == null)
        this.value = new DecimalType();
      if (!(this.value instanceof DecimalType))
        throw new FHIRException("Type mismatch: the type DecimalType was expected, but "
            + this.value.getClass().getName() + " was encountered");
      return (DecimalType) this.value;
    }

    public boolean hasValueDecimalType() {
      return this != null && this.value instanceof DecimalType;
    }

    public boolean hasValue() {
      return this.value != null && !this.value.isEmpty();
    }

    /**
     * @param value {@link #value} (The value of this property.)
     */
    public ConceptPropertyComponent setValue(Type value) {
      if (value != null && !(value instanceof CodeType || value instanceof Coding || value instanceof StringType
          || value instanceof IntegerType || value instanceof BooleanType || value instanceof DateTimeType
          || value instanceof DecimalType))
        throw new Error("Not the right type for CodeSystem.concept.property.value[x]: " + value.fhirType());
      this.value = value;
      return this;
    }

    protected void listChildren(List<Property> children) {
      super.listChildren(children);
      children.add(new Property("code", "code", "A code that is a reference to CodeSystem.property.code.", 0, 1, code));
      children.add(new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
          "The value of this property.", 0, 1, value));
    }

    @Override
    public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
      switch (_hash) {
      case 3059181:
        /* code */ return new Property("code", "code", "A code that is a reference to CodeSystem.property.code.", 0, 1,
            code);
      case -1410166417:
        /* value[x] */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case 111972721:
        /* value */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case -766209282:
        /* valueCode */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case -1887705029:
        /* valueCoding */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case -1424603934:
        /* valueString */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case -1668204915:
        /* valueInteger */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case 733421943:
        /* valueBoolean */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case 1047929900:
        /* valueDateTime */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      case -2083993440:
        /* valueDecimal */ return new Property("value[x]", "code|Coding|string|integer|boolean|dateTime|decimal",
            "The value of this property.", 0, 1, value);
      default:
        return super.getNamedProperty(_hash, _name, _checkValid);
      }

    }

    @Override
    public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return this.code == null ? new Base[0] : new Base[] { this.code }; // CodeType
      case 111972721:
        /* value */ return this.value == null ? new Base[0] : new Base[] { this.value }; // Type
      default:
        return super.getProperty(hash, name, checkValid);
      }

    }

    @Override
    public Base setProperty(int hash, String name, Base value) throws FHIRException {
      switch (hash) {
      case 3059181: // code
        this.code = castToCode(value); // CodeType
        return value;
      case 111972721: // value
        this.value = castToType(value); // Type
        return value;
      default:
        return super.setProperty(hash, name, value);
      }

    }

    @Override
    public Base setProperty(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = castToCode(value); // CodeType
      } else if (name.equals("value[x]")) {
        this.value = castToType(value); // Type
      } else
        return super.setProperty(name, value);
      return value;
    }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
      if (name.equals("code")) {
        this.code = null;
      } else if (name.equals("value[x]")) {
        this.value = null;
      } else
        super.removeChild(name, value);
      
    }

    @Override
    public Base makeProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        return getCodeElement();
      case -1410166417:
        return getValue();
      case 111972721:
        return getValue();
      default:
        return super.makeProperty(hash, name);
      }

    }

    @Override
    public String[] getTypesForProperty(int hash, String name) throws FHIRException {
      switch (hash) {
      case 3059181:
        /* code */ return new String[] { "code" };
      case 111972721:
        /* value */ return new String[] { "code", "Coding", "string", "integer", "boolean", "dateTime", "decimal" };
      default:
        return super.getTypesForProperty(hash, name);
      }

    }

    @Override
    public Base addChild(String name) throws FHIRException {
      if (name.equals("code")) {
        throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.code");
      } else if (name.equals("valueCode")) {
        this.value = new CodeType();
        return this.value;
      } else if (name.equals("valueCoding")) {
        this.value = new Coding();
        return this.value;
      } else if (name.equals("valueString")) {
        this.value = new StringType();
        return this.value;
      } else if (name.equals("valueInteger")) {
        this.value = new IntegerType();
        return this.value;
      } else if (name.equals("valueBoolean")) {
        this.value = new BooleanType();
        return this.value;
      } else if (name.equals("valueDateTime")) {
        this.value = new DateTimeType();
        return this.value;
      } else if (name.equals("valueDecimal")) {
        this.value = new DecimalType();
        return this.value;
      } else
        return super.addChild(name);
    }

    public ConceptPropertyComponent copy() {
      ConceptPropertyComponent dst = new ConceptPropertyComponent();
      copyValues(dst);
      return dst;
    }

    public void copyValues(ConceptPropertyComponent dst) {
      super.copyValues(dst);
      dst.code = code == null ? null : code.copy();
      dst.value = value == null ? null : value.copy();
    }

    @Override
    public boolean equalsDeep(Base other_) {
      if (!super.equalsDeep(other_))
        return false;
      if (!(other_ instanceof ConceptPropertyComponent))
        return false;
      ConceptPropertyComponent o = (ConceptPropertyComponent) other_;
      return compareDeep(code, o.code, true) && compareDeep(value, o.value, true);
    }

    @Override
    public boolean equalsShallow(Base other_) {
      if (!super.equalsShallow(other_))
        return false;
      if (!(other_ instanceof ConceptPropertyComponent))
        return false;
      ConceptPropertyComponent o = (ConceptPropertyComponent) other_;
      return compareValues(code, o.code, true);
    }

    public boolean isEmpty() {
      return super.isEmpty() && ca.uhn.fhir.util.ElementUtil.isEmpty(code, value);
    }

    public String fhirType() {
      return "CodeSystem.concept.property";

    }

  }

  /**
   * A formal identifier that is used to identify this code system when it is
   * represented in other formats, or referenced in a specification, model, design
   * or an instance.
   */
  @Child(name = "identifier", type = {
      Identifier.class }, order = 0, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = true)
  @Description(shortDefinition = "Additional identifier for the code system (business identifier)", formalDefinition = "A formal identifier that is used to identify this code system when it is represented in other formats, or referenced in a specification, model, design or an instance.")
  protected List<Identifier> identifier;

  /**
   * Explanation of why this code system is needed and why it has been designed as
   * it has.
   */
  @Child(name = "purpose", type = {
      MarkdownType.class }, order = 1, min = 0, max = 1, modifier = false, summary = false)
  @Description(shortDefinition = "Why this code system is defined", formalDefinition = "Explanation of why this code system is needed and why it has been designed as it has.")
  protected MarkdownType purpose;

  /**
   * A copyright statement relating to the code system and/or its contents.
   * Copyright statements are generally legal restrictions on the use and
   * publishing of the code system.
   */
  @Child(name = "copyright", type = {
      MarkdownType.class }, order = 2, min = 0, max = 1, modifier = false, summary = false)
  @Description(shortDefinition = "Use and/or publishing restrictions", formalDefinition = "A copyright statement relating to the code system and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the code system.")
  protected MarkdownType copyright;

  /**
   * If code comparison is case sensitive when codes within this system are
   * compared to each other.
   */
  @Child(name = "caseSensitive", type = {
      BooleanType.class }, order = 3, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "If code comparison is case sensitive", formalDefinition = "If code comparison is case sensitive when codes within this system are compared to each other.")
  protected BooleanType caseSensitive;

  /**
   * Canonical reference to the value set that contains the entire code system.
   */
  @Child(name = "valueSet", type = {
      CanonicalType.class }, order = 4, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "Canonical reference to the value set with entire code system", formalDefinition = "Canonical reference to the value set that contains the entire code system.")
  protected CanonicalType valueSet;

  /**
   * The meaning of the hierarchy of concepts as represented in this resource.
   */
  @Child(name = "hierarchyMeaning", type = {
      CodeType.class }, order = 5, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "grouped-by | is-a | part-of | classified-with", formalDefinition = "The meaning of the hierarchy of concepts as represented in this resource.")
  @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning")
  protected Enumeration<CodeSystemHierarchyMeaning> hierarchyMeaning;

  /**
   * The code system defines a compositional (post-coordination) grammar.
   */
  @Child(name = "compositional", type = {
      BooleanType.class }, order = 6, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "If code system defines a compositional grammar", formalDefinition = "The code system defines a compositional (post-coordination) grammar.")
  protected BooleanType compositional;

  /**
   * This flag is used to signify that the code system does not commit to concept
   * permanence across versions. If true, a version must be specified when
   * referencing this code system.
   */
  @Child(name = "versionNeeded", type = {
      BooleanType.class }, order = 7, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "If definitions are not stable", formalDefinition = "This flag is used to signify that the code system does not commit to concept permanence across versions. If true, a version must be specified when referencing this code system.")
  protected BooleanType versionNeeded;

  /**
   * The extent of the content of the code system (the concepts and codes it
   * defines) are represented in this resource instance.
   */
  @Child(name = "content", type = { CodeType.class }, order = 8, min = 1, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "not-present | example | fragment | complete | supplement", formalDefinition = "The extent of the content of the code system (the concepts and codes it defines) are represented in this resource instance.")
  @ca.uhn.fhir.model.api.annotation.Binding(valueSet = "http://hl7.org/fhir/ValueSet/codesystem-content-mode")
  protected Enumeration<CodeSystemContentMode> content;

  /**
   * The canonical URL of the code system that this code system supplement is
   * adding designations and properties to.
   */
  @Child(name = "supplements", type = {
      CanonicalType.class }, order = 9, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "Canonical URL of Code System this adds designations and properties to", formalDefinition = "The canonical URL of the code system that this code system supplement is adding designations and properties to.")
  protected CanonicalType supplements;

  /**
   * The total number of concepts defined by the code system. Where the code
   * system has a compositional grammar, the basis of this count is defined by the
   * system steward.
   */
  @Child(name = "count", type = {
      UnsignedIntType.class }, order = 10, min = 0, max = 1, modifier = false, summary = true)
  @Description(shortDefinition = "Total concepts in the code system", formalDefinition = "The total number of concepts defined by the code system. Where the code system has a compositional grammar, the basis of this count is defined by the system steward.")
  protected UnsignedIntType count;

  /**
   * A filter that can be used in a value set compose statement when selecting
   * concepts using a filter.
   */
  @Child(name = "filter", type = {}, order = 11, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = true)
  @Description(shortDefinition = "Filter that can be used in a value set", formalDefinition = "A filter that can be used in a value set compose statement when selecting concepts using a filter.")
  protected List<CodeSystemFilterComponent> filter;

  /**
   * A property defines an additional slot through which additional information
   * can be provided about a concept.
   */
  @Child(name = "property", type = {}, order = 12, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = true)
  @Description(shortDefinition = "Additional information supplied about each concept", formalDefinition = "A property defines an additional slot through which additional information can be provided about a concept.")
  protected List<PropertyComponent> property;

  /**
   * Concepts that are in the code system. The concept definitions are inherently
   * hierarchical, but the definitions must be consulted to determine what the
   * meanings of the hierarchical relationships are.
   */
  @Child(name = "concept", type = {}, order = 13, min = 0, max = Child.MAX_UNLIMITED, modifier = false, summary = false)
  @Description(shortDefinition = "Concepts in the code system", formalDefinition = "Concepts that are in the code system. The concept definitions are inherently hierarchical, but the definitions must be consulted to determine what the meanings of the hierarchical relationships are.")
  protected List<ConceptDefinitionComponent> concept;

  private static final long serialVersionUID = -1735124584L;

  /**
   * Constructor
   */
  public CodeSystem() {
    super();
  }

  /**
   * Constructor
   */
  public CodeSystem(Enumeration<PublicationStatus> status, Enumeration<CodeSystemContentMode> content) {
    super();
    this.status = status;
    this.content = content;
  }

  /**
   * @return {@link #url} (An absolute URI that is used to identify this code
   *         system when it is referenced in a specification, model, design or an
   *         instance; also called its canonical identifier. This SHOULD be
   *         globally unique and SHOULD be a literal address at which at which an
   *         authoritative instance of this code system is (or will be) published.
   *         This URL can be the target of a canonical reference. It SHALL remain
   *         the same when the code system is stored on different servers. This is
   *         used in [Coding](datatypes.html#Coding).system.). This is the
   *         underlying object with id, value and extensions. The accessor
   *         "getUrl" gives direct access to the value
   */
  public UriType getUrlElement() {
    if (this.url == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.url");
      else if (Configuration.doAutoCreate())
        this.url = new UriType(); // bb
    return this.url;
  }

  public boolean hasUrlElement() {
    return this.url != null && !this.url.isEmpty();
  }

  public boolean hasUrl() {
    return this.url != null && !this.url.isEmpty();
  }

  /**
   * @param value {@link #url} (An absolute URI that is used to identify this code
   *              system when it is referenced in a specification, model, design
   *              or an instance; also called its canonical identifier. This
   *              SHOULD be globally unique and SHOULD be a literal address at
   *              which at which an authoritative instance of this code system is
   *              (or will be) published. This URL can be the target of a
   *              canonical reference. It SHALL remain the same when the code
   *              system is stored on different servers. This is used in
   *              [Coding](datatypes.html#Coding).system.). This is the underlying
   *              object with id, value and extensions. The accessor "getUrl"
   *              gives direct access to the value
   */
  public CodeSystem setUrlElement(UriType value) {
    this.url = value;
    return this;
  }

  /**
   * @return An absolute URI that is used to identify this code system when it is
   *         referenced in a specification, model, design or an instance; also
   *         called its canonical identifier. This SHOULD be globally unique and
   *         SHOULD be a literal address at which at which an authoritative
   *         instance of this code system is (or will be) published. This URL can
   *         be the target of a canonical reference. It SHALL remain the same when
   *         the code system is stored on different servers. This is used in
   *         [Coding](datatypes.html#Coding).system.
   */
  public String getUrl() {
    return this.url == null ? null : this.url.getValue();
  }

  /**
   * @param value An absolute URI that is used to identify this code system when
   *              it is referenced in a specification, model, design or an
   *              instance; also called its canonical identifier. This SHOULD be
   *              globally unique and SHOULD be a literal address at which at
   *              which an authoritative instance of this code system is (or will
   *              be) published. This URL can be the target of a canonical
   *              reference. It SHALL remain the same when the code system is
   *              stored on different servers. This is used in
   *              [Coding](datatypes.html#Coding).system.
   */
  public CodeSystem setUrl(String value) {
    if (Utilities.noString(value))
      this.url = null;
    else {
      if (this.url == null)
        this.url = new UriType();
      this.url.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #identifier} (A formal identifier that is used to identify
   *         this code system when it is represented in other formats, or
   *         referenced in a specification, model, design or an instance.)
   */
  public List<Identifier> getIdentifier() {
    if (this.identifier == null)
      this.identifier = new ArrayList<Identifier>();
    return this.identifier;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setIdentifier(List<Identifier> theIdentifier) {
    this.identifier = theIdentifier;
    return this;
  }

  public boolean hasIdentifier() {
    if (this.identifier == null)
      return false;
    for (Identifier item : this.identifier)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public Identifier addIdentifier() { // 3
    Identifier t = new Identifier();
    if (this.identifier == null)
      this.identifier = new ArrayList<Identifier>();
    this.identifier.add(t);
    return t;
  }

  public CodeSystem addIdentifier(Identifier t) { // 3
    if (t == null)
      return this;
    if (this.identifier == null)
      this.identifier = new ArrayList<Identifier>();
    this.identifier.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #identifier}, creating
   *         it if it does not already exist
   */
  public Identifier getIdentifierFirstRep() {
    if (getIdentifier().isEmpty()) {
      addIdentifier();
    }
    return getIdentifier().get(0);
  }

  /**
   * @return {@link #version} (The identifier that is used to identify this
   *         version of the code system when it is referenced in a specification,
   *         model, design or instance. This is an arbitrary value managed by the
   *         code system author and is not expected to be globally unique. For
   *         example, it might be a timestamp (e.g. yyyymmdd) if a managed version
   *         is not available. There is also no expectation that versions can be
   *         placed in a lexicographical sequence. This is used in
   *         [Coding](datatypes.html#Coding).version.). This is the underlying
   *         object with id, value and extensions. The accessor "getVersion" gives
   *         direct access to the value
   */
  public StringType getVersionElement() {
    if (this.version == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.version");
      else if (Configuration.doAutoCreate())
        this.version = new StringType(); // bb
    return this.version;
  }

  public boolean hasVersionElement() {
    return this.version != null && !this.version.isEmpty();
  }

  public boolean hasVersion() {
    return this.version != null && !this.version.isEmpty();
  }

  /**
   * @param value {@link #version} (The identifier that is used to identify this
   *              version of the code system when it is referenced in a
   *              specification, model, design or instance. This is an arbitrary
   *              value managed by the code system author and is not expected to
   *              be globally unique. For example, it might be a timestamp (e.g.
   *              yyyymmdd) if a managed version is not available. There is also
   *              no expectation that versions can be placed in a lexicographical
   *              sequence. This is used in
   *              [Coding](datatypes.html#Coding).version.). This is the
   *              underlying object with id, value and extensions. The accessor
   *              "getVersion" gives direct access to the value
   */
  public CodeSystem setVersionElement(StringType value) {
    this.version = value;
    return this;
  }

  /**
   * @return The identifier that is used to identify this version of the code
   *         system when it is referenced in a specification, model, design or
   *         instance. This is an arbitrary value managed by the code system
   *         author and is not expected to be globally unique. For example, it
   *         might be a timestamp (e.g. yyyymmdd) if a managed version is not
   *         available. There is also no expectation that versions can be placed
   *         in a lexicographical sequence. This is used in
   *         [Coding](datatypes.html#Coding).version.
   */
  public String getVersion() {
    return this.version == null ? null : this.version.getValue();
  }

  /**
   * @param value The identifier that is used to identify this version of the code
   *              system when it is referenced in a specification, model, design
   *              or instance. This is an arbitrary value managed by the code
   *              system author and is not expected to be globally unique. For
   *              example, it might be a timestamp (e.g. yyyymmdd) if a managed
   *              version is not available. There is also no expectation that
   *              versions can be placed in a lexicographical sequence. This is
   *              used in [Coding](datatypes.html#Coding).version.
   */
  public CodeSystem setVersion(String value) {
    if (Utilities.noString(value))
      this.version = null;
    else {
      if (this.version == null)
        this.version = new StringType();
      this.version.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #name} (A natural language name identifying the code system.
   *         This name should be usable as an identifier for the module by machine
   *         processing applications such as code generation.). This is the
   *         underlying object with id, value and extensions. The accessor
   *         "getName" gives direct access to the value
   */
  public StringType getNameElement() {
    if (this.name == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.name");
      else if (Configuration.doAutoCreate())
        this.name = new StringType(); // bb
    return this.name;
  }

  public boolean hasNameElement() {
    return this.name != null && !this.name.isEmpty();
  }

  public boolean hasName() {
    return this.name != null && !this.name.isEmpty();
  }

  /**
   * @param value {@link #name} (A natural language name identifying the code
   *              system. This name should be usable as an identifier for the
   *              module by machine processing applications such as code
   *              generation.). This is the underlying object with id, value and
   *              extensions. The accessor "getName" gives direct access to the
   *              value
   */
  public CodeSystem setNameElement(StringType value) {
    this.name = value;
    return this;
  }

  /**
   * @return A natural language name identifying the code system. This name should
   *         be usable as an identifier for the module by machine processing
   *         applications such as code generation.
   */
  public String getName() {
    return this.name == null ? null : this.name.getValue();
  }

  /**
   * @param value A natural language name identifying the code system. This name
   *              should be usable as an identifier for the module by machine
   *              processing applications such as code generation.
   */
  public CodeSystem setName(String value) {
    if (Utilities.noString(value))
      this.name = null;
    else {
      if (this.name == null)
        this.name = new StringType();
      this.name.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #title} (A short, descriptive, user-friendly title for the
   *         code system.). This is the underlying object with id, value and
   *         extensions. The accessor "getTitle" gives direct access to the value
   */
  public StringType getTitleElement() {
    if (this.title == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.title");
      else if (Configuration.doAutoCreate())
        this.title = new StringType(); // bb
    return this.title;
  }

  public boolean hasTitleElement() {
    return this.title != null && !this.title.isEmpty();
  }

  public boolean hasTitle() {
    return this.title != null && !this.title.isEmpty();
  }

  /**
   * @param value {@link #title} (A short, descriptive, user-friendly title for
   *              the code system.). This is the underlying object with id, value
   *              and extensions. The accessor "getTitle" gives direct access to
   *              the value
   */
  public CodeSystem setTitleElement(StringType value) {
    this.title = value;
    return this;
  }

  /**
   * @return A short, descriptive, user-friendly title for the code system.
   */
  public String getTitle() {
    return this.title == null ? null : this.title.getValue();
  }

  /**
   * @param value A short, descriptive, user-friendly title for the code system.
   */
  public CodeSystem setTitle(String value) {
    if (Utilities.noString(value))
      this.title = null;
    else {
      if (this.title == null)
        this.title = new StringType();
      this.title.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #status} (The date (and optionally time) when the code system
   *         resource was created or revised.). This is the underlying object with
   *         id, value and extensions. The accessor "getStatus" gives direct
   *         access to the value
   */
  public Enumeration<PublicationStatus> getStatusElement() {
    if (this.status == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.status");
      else if (Configuration.doAutoCreate())
        this.status = new Enumeration<PublicationStatus>(new PublicationStatusEnumFactory()); // bb
    return this.status;
  }

  public boolean hasStatusElement() {
    return this.status != null && !this.status.isEmpty();
  }

  public boolean hasStatus() {
    return this.status != null && !this.status.isEmpty();
  }

  /**
   * @param value {@link #status} (The date (and optionally time) when the code
   *              system resource was created or revised.). This is the underlying
   *              object with id, value and extensions. The accessor "getStatus"
   *              gives direct access to the value
   */
  public CodeSystem setStatusElement(Enumeration<PublicationStatus> value) {
    this.status = value;
    return this;
  }

  /**
   * @return The date (and optionally time) when the code system resource was
   *         created or revised.
   */
  public PublicationStatus getStatus() {
    return this.status == null ? null : this.status.getValue();
  }

  /**
   * @param value The date (and optionally time) when the code system resource was
   *              created or revised.
   */
  public CodeSystem setStatus(PublicationStatus value) {
    if (this.status == null)
      this.status = new Enumeration<PublicationStatus>(new PublicationStatusEnumFactory());
    this.status.setValue(value);
    return this;
  }

  /**
   * @return {@link #experimental} (A Boolean value to indicate that this code
   *         system is authored for testing purposes (or
   *         education/evaluation/marketing) and is not intended to be used for
   *         genuine usage.). This is the underlying object with id, value and
   *         extensions. The accessor "getExperimental" gives direct access to the
   *         value
   */
  public BooleanType getExperimentalElement() {
    if (this.experimental == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.experimental");
      else if (Configuration.doAutoCreate())
        this.experimental = new BooleanType(); // bb
    return this.experimental;
  }

  public boolean hasExperimentalElement() {
    return this.experimental != null && !this.experimental.isEmpty();
  }

  public boolean hasExperimental() {
    return this.experimental != null && !this.experimental.isEmpty();
  }

  /**
   * @param value {@link #experimental} (A Boolean value to indicate that this
   *              code system is authored for testing purposes (or
   *              education/evaluation/marketing) and is not intended to be used
   *              for genuine usage.). This is the underlying object with id,
   *              value and extensions. The accessor "getExperimental" gives
   *              direct access to the value
   */
  public CodeSystem setExperimentalElement(BooleanType value) {
    this.experimental = value;
    return this;
  }

  /**
   * @return A Boolean value to indicate that this code system is authored for
   *         testing purposes (or education/evaluation/marketing) and is not
   *         intended to be used for genuine usage.
   */
  public boolean getExperimental() {
    return this.experimental == null || this.experimental.isEmpty() ? false : this.experimental.getValue();
  }

  /**
   * @param value A Boolean value to indicate that this code system is authored
   *              for testing purposes (or education/evaluation/marketing) and is
   *              not intended to be used for genuine usage.
   */
  public CodeSystem setExperimental(boolean value) {
    if (this.experimental == null)
      this.experimental = new BooleanType();
    this.experimental.setValue(value);
    return this;
  }

  /**
   * @return {@link #date} (The date (and optionally time) when the code system
   *         was published. The date must change when the business version changes
   *         and it must change if the status code changes. In addition, it should
   *         change when the substantive content of the code system changes.).
   *         This is the underlying object with id, value and extensions. The
   *         accessor "getDate" gives direct access to the value
   */
  public DateTimeType getDateElement() {
    if (this.date == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.date");
      else if (Configuration.doAutoCreate())
        this.date = new DateTimeType(); // bb
    return this.date;
  }

  public boolean hasDateElement() {
    return this.date != null && !this.date.isEmpty();
  }

  public boolean hasDate() {
    return this.date != null && !this.date.isEmpty();
  }

  /**
   * @param value {@link #date} (The date (and optionally time) when the code
   *              system was published. The date must change when the business
   *              version changes and it must change if the status code changes.
   *              In addition, it should change when the substantive content of
   *              the code system changes.). This is the underlying object with
   *              id, value and extensions. The accessor "getDate" gives direct
   *              access to the value
   */
  public CodeSystem setDateElement(DateTimeType value) {
    this.date = value;
    return this;
  }

  /**
   * @return The date (and optionally time) when the code system was published.
   *         The date must change when the business version changes and it must
   *         change if the status code changes. In addition, it should change when
   *         the substantive content of the code system changes.
   */
  public Date getDate() {
    return this.date == null ? null : this.date.getValue();
  }

  /**
   * @param value The date (and optionally time) when the code system was
   *              published. The date must change when the business version
   *              changes and it must change if the status code changes. In
   *              addition, it should change when the substantive content of the
   *              code system changes.
   */
  public CodeSystem setDate(Date value) {
    if (value == null)
      this.date = null;
    else {
      if (this.date == null)
        this.date = new DateTimeType();
      this.date.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #publisher} (The name of the organization or individual that
   *         published the code system.). This is the underlying object with id,
   *         value and extensions. The accessor "getPublisher" gives direct access
   *         to the value
   */
  public StringType getPublisherElement() {
    if (this.publisher == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.publisher");
      else if (Configuration.doAutoCreate())
        this.publisher = new StringType(); // bb
    return this.publisher;
  }

  public boolean hasPublisherElement() {
    return this.publisher != null && !this.publisher.isEmpty();
  }

  public boolean hasPublisher() {
    return this.publisher != null && !this.publisher.isEmpty();
  }

  /**
   * @param value {@link #publisher} (The name of the organization or individual
   *              that published the code system.). This is the underlying object
   *              with id, value and extensions. The accessor "getPublisher" gives
   *              direct access to the value
   */
  public CodeSystem setPublisherElement(StringType value) {
    this.publisher = value;
    return this;
  }

  /**
   * @return The name of the organization or individual that published the code
   *         system.
   */
  public String getPublisher() {
    return this.publisher == null ? null : this.publisher.getValue();
  }

  /**
   * @param value The name of the organization or individual that published the
   *              code system.
   */
  public CodeSystem setPublisher(String value) {
    if (Utilities.noString(value))
      this.publisher = null;
    else {
      if (this.publisher == null)
        this.publisher = new StringType();
      this.publisher.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #contact} (Contact details to assist a user in finding and
   *         communicating with the publisher.)
   */
  public List<ContactDetail> getContact() {
    if (this.contact == null)
      this.contact = new ArrayList<ContactDetail>();
    return this.contact;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setContact(List<ContactDetail> theContact) {
    this.contact = theContact;
    return this;
  }

  public boolean hasContact() {
    if (this.contact == null)
      return false;
    for (ContactDetail item : this.contact)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public ContactDetail addContact() { // 3
    ContactDetail t = new ContactDetail();
    if (this.contact == null)
      this.contact = new ArrayList<ContactDetail>();
    this.contact.add(t);
    return t;
  }

  public CodeSystem addContact(ContactDetail t) { // 3
    if (t == null)
      return this;
    if (this.contact == null)
      this.contact = new ArrayList<ContactDetail>();
    this.contact.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #contact}, creating it
   *         if it does not already exist
   */
  public ContactDetail getContactFirstRep() {
    if (getContact().isEmpty()) {
      addContact();
    }
    return getContact().get(0);
  }

  /**
   * @return {@link #description} (A free text natural language description of the
   *         code system from a consumer's perspective.). This is the underlying
   *         object with id, value and extensions. The accessor "getDescription"
   *         gives direct access to the value
   */
  public MarkdownType getDescriptionElement() {
    if (this.description == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.description");
      else if (Configuration.doAutoCreate())
        this.description = new MarkdownType(); // bb
    return this.description;
  }

  public boolean hasDescriptionElement() {
    return this.description != null && !this.description.isEmpty();
  }

  public boolean hasDescription() {
    return this.description != null && !this.description.isEmpty();
  }

  /**
   * @param value {@link #description} (A free text natural language description
   *              of the code system from a consumer's perspective.). This is the
   *              underlying object with id, value and extensions. The accessor
   *              "getDescription" gives direct access to the value
   */
  public CodeSystem setDescriptionElement(MarkdownType value) {
    this.description = value;
    return this;
  }

  /**
   * @return A free text natural language description of the code system from a
   *         consumer's perspective.
   */
  public String getDescription() {
    return this.description == null ? null : this.description.getValue();
  }

  /**
   * @param value A free text natural language description of the code system from
   *              a consumer's perspective.
   */
  public CodeSystem setDescription(String value) {
    if (value == null)
      this.description = null;
    else {
      if (this.description == null)
        this.description = new MarkdownType();
      this.description.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #useContext} (The content was developed with a focus and
   *         intent of supporting the contexts that are listed. These contexts may
   *         be general categories (gender, age, ...) or may be references to
   *         specific programs (insurance plans, studies, ...) and may be used to
   *         assist with indexing and searching for appropriate code system
   *         instances.)
   */
  public List<UsageContext> getUseContext() {
    if (this.useContext == null)
      this.useContext = new ArrayList<UsageContext>();
    return this.useContext;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setUseContext(List<UsageContext> theUseContext) {
    this.useContext = theUseContext;
    return this;
  }

  public boolean hasUseContext() {
    if (this.useContext == null)
      return false;
    for (UsageContext item : this.useContext)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public UsageContext addUseContext() { // 3
    UsageContext t = new UsageContext();
    if (this.useContext == null)
      this.useContext = new ArrayList<UsageContext>();
    this.useContext.add(t);
    return t;
  }

  public CodeSystem addUseContext(UsageContext t) { // 3
    if (t == null)
      return this;
    if (this.useContext == null)
      this.useContext = new ArrayList<UsageContext>();
    this.useContext.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #useContext}, creating
   *         it if it does not already exist
   */
  public UsageContext getUseContextFirstRep() {
    if (getUseContext().isEmpty()) {
      addUseContext();
    }
    return getUseContext().get(0);
  }

  /**
   * @return {@link #jurisdiction} (A legal or geographic region in which the code
   *         system is intended to be used.)
   */
  public List<CodeableConcept> getJurisdiction() {
    if (this.jurisdiction == null)
      this.jurisdiction = new ArrayList<CodeableConcept>();
    return this.jurisdiction;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setJurisdiction(List<CodeableConcept> theJurisdiction) {
    this.jurisdiction = theJurisdiction;
    return this;
  }

  public boolean hasJurisdiction() {
    if (this.jurisdiction == null)
      return false;
    for (CodeableConcept item : this.jurisdiction)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public CodeableConcept addJurisdiction() { // 3
    CodeableConcept t = new CodeableConcept();
    if (this.jurisdiction == null)
      this.jurisdiction = new ArrayList<CodeableConcept>();
    this.jurisdiction.add(t);
    return t;
  }

  public CodeSystem addJurisdiction(CodeableConcept t) { // 3
    if (t == null)
      return this;
    if (this.jurisdiction == null)
      this.jurisdiction = new ArrayList<CodeableConcept>();
    this.jurisdiction.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #jurisdiction},
   *         creating it if it does not already exist
   */
  public CodeableConcept getJurisdictionFirstRep() {
    if (getJurisdiction().isEmpty()) {
      addJurisdiction();
    }
    return getJurisdiction().get(0);
  }

  /**
   * @return {@link #purpose} (Explanation of why this code system is needed and
   *         why it has been designed as it has.). This is the underlying object
   *         with id, value and extensions. The accessor "getPurpose" gives direct
   *         access to the value
   */
  public MarkdownType getPurposeElement() {
    if (this.purpose == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.purpose");
      else if (Configuration.doAutoCreate())
        this.purpose = new MarkdownType(); // bb
    return this.purpose;
  }

  public boolean hasPurposeElement() {
    return this.purpose != null && !this.purpose.isEmpty();
  }

  public boolean hasPurpose() {
    return this.purpose != null && !this.purpose.isEmpty();
  }

  /**
   * @param value {@link #purpose} (Explanation of why this code system is needed
   *              and why it has been designed as it has.). This is the underlying
   *              object with id, value and extensions. The accessor "getPurpose"
   *              gives direct access to the value
   */
  public CodeSystem setPurposeElement(MarkdownType value) {
    this.purpose = value;
    return this;
  }

  /**
   * @return Explanation of why this code system is needed and why it has been
   *         designed as it has.
   */
  public String getPurpose() {
    return this.purpose == null ? null : this.purpose.getValue();
  }

  /**
   * @param value Explanation of why this code system is needed and why it has
   *              been designed as it has.
   */
  public CodeSystem setPurpose(String value) {
    if (value == null)
      this.purpose = null;
    else {
      if (this.purpose == null)
        this.purpose = new MarkdownType();
      this.purpose.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #copyright} (A copyright statement relating to the code system
   *         and/or its contents. Copyright statements are generally legal
   *         restrictions on the use and publishing of the code system.). This is
   *         the underlying object with id, value and extensions. The accessor
   *         "getCopyright" gives direct access to the value
   */
  public MarkdownType getCopyrightElement() {
    if (this.copyright == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.copyright");
      else if (Configuration.doAutoCreate())
        this.copyright = new MarkdownType(); // bb
    return this.copyright;
  }

  public boolean hasCopyrightElement() {
    return this.copyright != null && !this.copyright.isEmpty();
  }

  public boolean hasCopyright() {
    return this.copyright != null && !this.copyright.isEmpty();
  }

  /**
   * @param value {@link #copyright} (A copyright statement relating to the code
   *              system and/or its contents. Copyright statements are generally
   *              legal restrictions on the use and publishing of the code
   *              system.). This is the underlying object with id, value and
   *              extensions. The accessor "getCopyright" gives direct access to
   *              the value
   */
  public CodeSystem setCopyrightElement(MarkdownType value) {
    this.copyright = value;
    return this;
  }

  /**
   * @return A copyright statement relating to the code system and/or its
   *         contents. Copyright statements are generally legal restrictions on
   *         the use and publishing of the code system.
   */
  public String getCopyright() {
    return this.copyright == null ? null : this.copyright.getValue();
  }

  /**
   * @param value A copyright statement relating to the code system and/or its
   *              contents. Copyright statements are generally legal restrictions
   *              on the use and publishing of the code system.
   */
  public CodeSystem setCopyright(String value) {
    if (value == null)
      this.copyright = null;
    else {
      if (this.copyright == null)
        this.copyright = new MarkdownType();
      this.copyright.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #caseSensitive} (If code comparison is case sensitive when
   *         codes within this system are compared to each other.). This is the
   *         underlying object with id, value and extensions. The accessor
   *         "getCaseSensitive" gives direct access to the value
   */
  public BooleanType getCaseSensitiveElement() {
    if (this.caseSensitive == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.caseSensitive");
      else if (Configuration.doAutoCreate())
        this.caseSensitive = new BooleanType(); // bb
    return this.caseSensitive;
  }

  public boolean hasCaseSensitiveElement() {
    return this.caseSensitive != null && !this.caseSensitive.isEmpty();
  }

  public boolean hasCaseSensitive() {
    return this.caseSensitive != null && !this.caseSensitive.isEmpty();
  }

  /**
   * @param value {@link #caseSensitive} (If code comparison is case sensitive
   *              when codes within this system are compared to each other.). This
   *              is the underlying object with id, value and extensions. The
   *              accessor "getCaseSensitive" gives direct access to the value
   */
  public CodeSystem setCaseSensitiveElement(BooleanType value) {
    this.caseSensitive = value;
    return this;
  }

  /**
   * @return If code comparison is case sensitive when codes within this system
   *         are compared to each other.
   */
  public boolean getCaseSensitive() {
    return this.caseSensitive == null || this.caseSensitive.isEmpty() ? false : this.caseSensitive.getValue();
  }

  /**
   * @param value If code comparison is case sensitive when codes within this
   *              system are compared to each other.
   */
  public CodeSystem setCaseSensitive(boolean value) {
    if (this.caseSensitive == null)
      this.caseSensitive = new BooleanType();
    this.caseSensitive.setValue(value);
    return this;
  }

  /**
   * @return {@link #valueSet} (Canonical reference to the value set that contains
   *         the entire code system.). This is the underlying object with id,
   *         value and extensions. The accessor "getValueSet" gives direct access
   *         to the value
   */
  public CanonicalType getValueSetElement() {
    if (this.valueSet == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.valueSet");
      else if (Configuration.doAutoCreate())
        this.valueSet = new CanonicalType(); // bb
    return this.valueSet;
  }

  public boolean hasValueSetElement() {
    return this.valueSet != null && !this.valueSet.isEmpty();
  }

  public boolean hasValueSet() {
    return this.valueSet != null && !this.valueSet.isEmpty();
  }

  /**
   * @param value {@link #valueSet} (Canonical reference to the value set that
   *              contains the entire code system.). This is the underlying object
   *              with id, value and extensions. The accessor "getValueSet" gives
   *              direct access to the value
   */
  public CodeSystem setValueSetElement(CanonicalType value) {
    this.valueSet = value;
    return this;
  }

  /**
   * @return Canonical reference to the value set that contains the entire code
   *         system.
   */
  public String getValueSet() {
    return this.valueSet == null ? null : this.valueSet.getValue();
  }

  /**
   * @param value Canonical reference to the value set that contains the entire
   *              code system.
   */
  public CodeSystem setValueSet(String value) {
    if (Utilities.noString(value))
      this.valueSet = null;
    else {
      if (this.valueSet == null)
        this.valueSet = new CanonicalType();
      this.valueSet.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #hierarchyMeaning} (The meaning of the hierarchy of concepts
   *         as represented in this resource.). This is the underlying object with
   *         id, value and extensions. The accessor "getHierarchyMeaning" gives
   *         direct access to the value
   */
  public Enumeration<CodeSystemHierarchyMeaning> getHierarchyMeaningElement() {
    if (this.hierarchyMeaning == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.hierarchyMeaning");
      else if (Configuration.doAutoCreate())
        this.hierarchyMeaning = new Enumeration<CodeSystemHierarchyMeaning>(
            new CodeSystemHierarchyMeaningEnumFactory()); // bb
    return this.hierarchyMeaning;
  }

  public boolean hasHierarchyMeaningElement() {
    return this.hierarchyMeaning != null && !this.hierarchyMeaning.isEmpty();
  }

  public boolean hasHierarchyMeaning() {
    return this.hierarchyMeaning != null && !this.hierarchyMeaning.isEmpty();
  }

  /**
   * @param value {@link #hierarchyMeaning} (The meaning of the hierarchy of
   *              concepts as represented in this resource.). This is the
   *              underlying object with id, value and extensions. The accessor
   *              "getHierarchyMeaning" gives direct access to the value
   */
  public CodeSystem setHierarchyMeaningElement(Enumeration<CodeSystemHierarchyMeaning> value) {
    this.hierarchyMeaning = value;
    return this;
  }

  /**
   * @return The meaning of the hierarchy of concepts as represented in this
   *         resource.
   */
  public CodeSystemHierarchyMeaning getHierarchyMeaning() {
    return this.hierarchyMeaning == null ? null : this.hierarchyMeaning.getValue();
  }

  /**
   * @param value The meaning of the hierarchy of concepts as represented in this
   *              resource.
   */
  public CodeSystem setHierarchyMeaning(CodeSystemHierarchyMeaning value) {
    if (value == null)
      this.hierarchyMeaning = null;
    else {
      if (this.hierarchyMeaning == null)
        this.hierarchyMeaning = new Enumeration<CodeSystemHierarchyMeaning>(
            new CodeSystemHierarchyMeaningEnumFactory());
      this.hierarchyMeaning.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #compositional} (The code system defines a compositional
   *         (post-coordination) grammar.). This is the underlying object with id,
   *         value and extensions. The accessor "getCompositional" gives direct
   *         access to the value
   */
  public BooleanType getCompositionalElement() {
    if (this.compositional == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.compositional");
      else if (Configuration.doAutoCreate())
        this.compositional = new BooleanType(); // bb
    return this.compositional;
  }

  public boolean hasCompositionalElement() {
    return this.compositional != null && !this.compositional.isEmpty();
  }

  public boolean hasCompositional() {
    return this.compositional != null && !this.compositional.isEmpty();
  }

  /**
   * @param value {@link #compositional} (The code system defines a compositional
   *              (post-coordination) grammar.). This is the underlying object
   *              with id, value and extensions. The accessor "getCompositional"
   *              gives direct access to the value
   */
  public CodeSystem setCompositionalElement(BooleanType value) {
    this.compositional = value;
    return this;
  }

  /**
   * @return The code system defines a compositional (post-coordination) grammar.
   */
  public boolean getCompositional() {
    return this.compositional == null || this.compositional.isEmpty() ? false : this.compositional.getValue();
  }

  /**
   * @param value The code system defines a compositional (post-coordination)
   *              grammar.
   */
  public CodeSystem setCompositional(boolean value) {
    if (this.compositional == null)
      this.compositional = new BooleanType();
    this.compositional.setValue(value);
    return this;
  }

  /**
   * @return {@link #versionNeeded} (This flag is used to signify that the code
   *         system does not commit to concept permanence across versions. If
   *         true, a version must be specified when referencing this code
   *         system.). This is the underlying object with id, value and
   *         extensions. The accessor "getVersionNeeded" gives direct access to
   *         the value
   */
  public BooleanType getVersionNeededElement() {
    if (this.versionNeeded == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.versionNeeded");
      else if (Configuration.doAutoCreate())
        this.versionNeeded = new BooleanType(); // bb
    return this.versionNeeded;
  }

  public boolean hasVersionNeededElement() {
    return this.versionNeeded != null && !this.versionNeeded.isEmpty();
  }

  public boolean hasVersionNeeded() {
    return this.versionNeeded != null && !this.versionNeeded.isEmpty();
  }

  /**
   * @param value {@link #versionNeeded} (This flag is used to signify that the
   *              code system does not commit to concept permanence across
   *              versions. If true, a version must be specified when referencing
   *              this code system.). This is the underlying object with id, value
   *              and extensions. The accessor "getVersionNeeded" gives direct
   *              access to the value
   */
  public CodeSystem setVersionNeededElement(BooleanType value) {
    this.versionNeeded = value;
    return this;
  }

  /**
   * @return This flag is used to signify that the code system does not commit to
   *         concept permanence across versions. If true, a version must be
   *         specified when referencing this code system.
   */
  public boolean getVersionNeeded() {
    return this.versionNeeded == null || this.versionNeeded.isEmpty() ? false : this.versionNeeded.getValue();
  }

  /**
   * @param value This flag is used to signify that the code system does not
   *              commit to concept permanence across versions. If true, a version
   *              must be specified when referencing this code system.
   */
  public CodeSystem setVersionNeeded(boolean value) {
    if (this.versionNeeded == null)
      this.versionNeeded = new BooleanType();
    this.versionNeeded.setValue(value);
    return this;
  }

  /**
   * @return {@link #content} (The extent of the content of the code system (the
   *         concepts and codes it defines) are represented in this resource
   *         instance.). This is the underlying object with id, value and
   *         extensions. The accessor "getContent" gives direct access to the
   *         value
   */
  public Enumeration<CodeSystemContentMode> getContentElement() {
    if (this.content == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.content");
      else if (Configuration.doAutoCreate())
        this.content = new Enumeration<CodeSystemContentMode>(new CodeSystemContentModeEnumFactory()); // bb
    return this.content;
  }

  public boolean hasContentElement() {
    return this.content != null && !this.content.isEmpty();
  }

  public boolean hasContent() {
    return this.content != null && !this.content.isEmpty();
  }

  /**
   * @param value {@link #content} (The extent of the content of the code system
   *              (the concepts and codes it defines) are represented in this
   *              resource instance.). This is the underlying object with id,
   *              value and extensions. The accessor "getContent" gives direct
   *              access to the value
   */
  public CodeSystem setContentElement(Enumeration<CodeSystemContentMode> value) {
    this.content = value;
    return this;
  }

  /**
   * @return The extent of the content of the code system (the concepts and codes
   *         it defines) are represented in this resource instance.
   */
  public CodeSystemContentMode getContent() {
    return this.content == null ? null : this.content.getValue();
  }

  /**
   * @param value The extent of the content of the code system (the concepts and
   *              codes it defines) are represented in this resource instance.
   */
  public CodeSystem setContent(CodeSystemContentMode value) {
    if (this.content == null)
      this.content = new Enumeration<CodeSystemContentMode>(new CodeSystemContentModeEnumFactory());
    this.content.setValue(value);
    return this;
  }

  /**
   * @return {@link #supplements} (The canonical URL of the code system that this
   *         code system supplement is adding designations and properties to.).
   *         This is the underlying object with id, value and extensions. The
   *         accessor "getSupplements" gives direct access to the value
   */
  public CanonicalType getSupplementsElement() {
    if (this.supplements == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.supplements");
      else if (Configuration.doAutoCreate())
        this.supplements = new CanonicalType(); // bb
    return this.supplements;
  }

  public boolean hasSupplementsElement() {
    return this.supplements != null && !this.supplements.isEmpty();
  }

  public boolean hasSupplements() {
    return this.supplements != null && !this.supplements.isEmpty();
  }

  /**
   * @param value {@link #supplements} (The canonical URL of the code system that
   *              this code system supplement is adding designations and
   *              properties to.). This is the underlying object with id, value
   *              and extensions. The accessor "getSupplements" gives direct
   *              access to the value
   */
  public CodeSystem setSupplementsElement(CanonicalType value) {
    this.supplements = value;
    return this;
  }

  /**
   * @return The canonical URL of the code system that this code system supplement
   *         is adding designations and properties to.
   */
  public String getSupplements() {
    return this.supplements == null ? null : this.supplements.getValue();
  }

  /**
   * @param value The canonical URL of the code system that this code system
   *              supplement is adding designations and properties to.
   */
  public CodeSystem setSupplements(String value) {
    if (Utilities.noString(value))
      this.supplements = null;
    else {
      if (this.supplements == null)
        this.supplements = new CanonicalType();
      this.supplements.setValue(value);
    }
    return this;
  }

  /**
   * @return {@link #count} (The total number of concepts defined by the code
   *         system. Where the code system has a compositional grammar, the basis
   *         of this count is defined by the system steward.). This is the
   *         underlying object with id, value and extensions. The accessor
   *         "getCount" gives direct access to the value
   */
  public UnsignedIntType getCountElement() {
    if (this.count == null)
      if (Configuration.errorOnAutoCreate())
        throw new Error("Attempt to auto-create CodeSystem.count");
      else if (Configuration.doAutoCreate())
        this.count = new UnsignedIntType(); // bb
    return this.count;
  }

  public boolean hasCountElement() {
    return this.count != null && !this.count.isEmpty();
  }

  public boolean hasCount() {
    return this.count != null && !this.count.isEmpty();
  }

  /**
   * @param value {@link #count} (The total number of concepts defined by the code
   *              system. Where the code system has a compositional grammar, the
   *              basis of this count is defined by the system steward.). This is
   *              the underlying object with id, value and extensions. The
   *              accessor "getCount" gives direct access to the value
   */
  public CodeSystem setCountElement(UnsignedIntType value) {
    this.count = value;
    return this;
  }

  /**
   * @return The total number of concepts defined by the code system. Where the
   *         code system has a compositional grammar, the basis of this count is
   *         defined by the system steward.
   */
  public int getCount() {
    return this.count == null || this.count.isEmpty() ? 0 : this.count.getValue();
  }

  /**
   * @param value The total number of concepts defined by the code system. Where
   *              the code system has a compositional grammar, the basis of this
   *              count is defined by the system steward.
   */
  public CodeSystem setCount(int value) {
    if (this.count == null)
      this.count = new UnsignedIntType();
    this.count.setValue(value);
    return this;
  }

  /**
   * @return {@link #filter} (A filter that can be used in a value set compose
   *         statement when selecting concepts using a filter.)
   */
  public List<CodeSystemFilterComponent> getFilter() {
    if (this.filter == null)
      this.filter = new ArrayList<CodeSystemFilterComponent>();
    return this.filter;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setFilter(List<CodeSystemFilterComponent> theFilter) {
    this.filter = theFilter;
    return this;
  }

  public boolean hasFilter() {
    if (this.filter == null)
      return false;
    for (CodeSystemFilterComponent item : this.filter)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public CodeSystemFilterComponent addFilter() { // 3
    CodeSystemFilterComponent t = new CodeSystemFilterComponent();
    if (this.filter == null)
      this.filter = new ArrayList<CodeSystemFilterComponent>();
    this.filter.add(t);
    return t;
  }

  public CodeSystem addFilter(CodeSystemFilterComponent t) { // 3
    if (t == null)
      return this;
    if (this.filter == null)
      this.filter = new ArrayList<CodeSystemFilterComponent>();
    this.filter.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #filter}, creating it
   *         if it does not already exist
   */
  public CodeSystemFilterComponent getFilterFirstRep() {
    if (getFilter().isEmpty()) {
      addFilter();
    }
    return getFilter().get(0);
  }

  /**
   * @return {@link #property} (A property defines an additional slot through
   *         which additional information can be provided about a concept.)
   */
  public List<PropertyComponent> getProperty() {
    if (this.property == null)
      this.property = new ArrayList<PropertyComponent>();
    return this.property;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setProperty(List<PropertyComponent> theProperty) {
    this.property = theProperty;
    return this;
  }

  public boolean hasProperty() {
    if (this.property == null)
      return false;
    for (PropertyComponent item : this.property)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public PropertyComponent addProperty() { // 3
    PropertyComponent t = new PropertyComponent();
    if (this.property == null)
      this.property = new ArrayList<PropertyComponent>();
    this.property.add(t);
    return t;
  }

  public CodeSystem addProperty(PropertyComponent t) { // 3
    if (t == null)
      return this;
    if (this.property == null)
      this.property = new ArrayList<PropertyComponent>();
    this.property.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #property}, creating
   *         it if it does not already exist
   */
  public PropertyComponent getPropertyFirstRep() {
    if (getProperty().isEmpty()) {
      addProperty();
    }
    return getProperty().get(0);
  }

  /**
   * @return {@link #concept} (Concepts that are in the code system. The concept
   *         definitions are inherently hierarchical, but the definitions must be
   *         consulted to determine what the meanings of the hierarchical
   *         relationships are.)
   */
  public List<ConceptDefinitionComponent> getConcept() {
    if (this.concept == null)
      this.concept = new ArrayList<ConceptDefinitionComponent>();
    return this.concept;
  }

  /**
   * @return Returns a reference to <code>this</code> for easy method chaining
   */
  public CodeSystem setConcept(List<ConceptDefinitionComponent> theConcept) {
    this.concept = theConcept;
    return this;
  }

  public boolean hasConcept() {
    if (this.concept == null)
      return false;
    for (ConceptDefinitionComponent item : this.concept)
      if (!item.isEmpty())
        return true;
    return false;
  }

  public ConceptDefinitionComponent addConcept() { // 3
    ConceptDefinitionComponent t = new ConceptDefinitionComponent();
    if (this.concept == null)
      this.concept = new ArrayList<ConceptDefinitionComponent>();
    this.concept.add(t);
    return t;
  }

  public CodeSystem addConcept(ConceptDefinitionComponent t) { // 3
    if (t == null)
      return this;
    if (this.concept == null)
      this.concept = new ArrayList<ConceptDefinitionComponent>();
    this.concept.add(t);
    return this;
  }

  /**
   * @return The first repetition of repeating field {@link #concept}, creating it
   *         if it does not already exist
   */
  public ConceptDefinitionComponent getConceptFirstRep() {
    if (getConcept().isEmpty()) {
      addConcept();
    }
    return getConcept().get(0);
  }

  protected void listChildren(List<Property> children) {
    super.listChildren(children);
    children.add(new Property("url", "uri",
        "An absolute URI that is used to identify this code system when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this code system is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the code system is stored on different servers. This is used in [Coding](datatypes.html#Coding).system.",
        0, 1, url));
    children.add(new Property("identifier", "Identifier",
        "A formal identifier that is used to identify this code system when it is represented in other formats, or referenced in a specification, model, design or an instance.",
        0, java.lang.Integer.MAX_VALUE, identifier));
    children.add(new Property("version", "string",
        "The identifier that is used to identify this version of the code system when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the code system author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. This is used in [Coding](datatypes.html#Coding).version.",
        0, 1, version));
    children.add(new Property("name", "string",
        "A natural language name identifying the code system. This name should be usable as an identifier for the module by machine processing applications such as code generation.",
        0, 1, name));
    children.add(
        new Property("title", "string", "A short, descriptive, user-friendly title for the code system.", 0, 1, title));
    children.add(new Property("status", "code",
        "The date (and optionally time) when the code system resource was created or revised.", 0, 1, status));
    children.add(new Property("experimental", "boolean",
        "A Boolean value to indicate that this code system is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.",
        0, 1, experimental));
    children.add(new Property("date", "dateTime",
        "The date  (and optionally time) when the code system was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the code system changes.",
        0, 1, date));
    children.add(new Property("publisher", "string",
        "The name of the organization or individual that published the code system.", 0, 1, publisher));
    children.add(new Property("contact", "ContactDetail",
        "Contact details to assist a user in finding and communicating with the publisher.", 0,
        java.lang.Integer.MAX_VALUE, contact));
    children.add(new Property("description", "markdown",
        "A free text natural language description of the code system from a consumer's perspective.", 0, 1,
        description));
    children.add(new Property("useContext", "UsageContext",
        "The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate code system instances.",
        0, java.lang.Integer.MAX_VALUE, useContext));
    children.add(new Property("jurisdiction", "CodeableConcept",
        "A legal or geographic region in which the code system is intended to be used.", 0, java.lang.Integer.MAX_VALUE,
        jurisdiction));
    children.add(new Property("purpose", "markdown",
        "Explanation of why this code system is needed and why it has been designed as it has.", 0, 1, purpose));
    children.add(new Property("copyright", "markdown",
        "A copyright statement relating to the code system and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the code system.",
        0, 1, copyright));
    children.add(new Property("caseSensitive", "boolean",
        "If code comparison is case sensitive when codes within this system are compared to each other.", 0, 1,
        caseSensitive));
    children.add(new Property("valueSet", "canonical(ValueSet)",
        "Canonical reference to the value set that contains the entire code system.", 0, 1, valueSet));
    children.add(new Property("hierarchyMeaning", "code",
        "The meaning of the hierarchy of concepts as represented in this resource.", 0, 1, hierarchyMeaning));
    children.add(new Property("compositional", "boolean",
        "The code system defines a compositional (post-coordination) grammar.", 0, 1, compositional));
    children.add(new Property("versionNeeded", "boolean",
        "This flag is used to signify that the code system does not commit to concept permanence across versions. If true, a version must be specified when referencing this code system.",
        0, 1, versionNeeded));
    children.add(new Property("content", "code",
        "The extent of the content of the code system (the concepts and codes it defines) are represented in this resource instance.",
        0, 1, content));
    children.add(new Property("supplements", "canonical(CodeSystem)",
        "The canonical URL of the code system that this code system supplement is adding designations and properties to.",
        0, 1, supplements));
    children.add(new Property("count", "unsignedInt",
        "The total number of concepts defined by the code system. Where the code system has a compositional grammar, the basis of this count is defined by the system steward.",
        0, 1, count));
    children.add(new Property("filter", "",
        "A filter that can be used in a value set compose statement when selecting concepts using a filter.", 0,
        java.lang.Integer.MAX_VALUE, filter));
    children.add(new Property("property", "",
        "A property defines an additional slot through which additional information can be provided about a concept.",
        0, java.lang.Integer.MAX_VALUE, property));
    children.add(new Property("concept", "",
        "Concepts that are in the code system. The concept definitions are inherently hierarchical, but the definitions must be consulted to determine what the meanings of the hierarchical relationships are.",
        0, java.lang.Integer.MAX_VALUE, concept));
  }

  @Override
  public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
    switch (_hash) {
    case 116079:
      /* url */ return new Property("url", "uri",
          "An absolute URI that is used to identify this code system when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this code system is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the code system is stored on different servers. This is used in [Coding](datatypes.html#Coding).system.",
          0, 1, url);
    case -1618432855:
      /* identifier */ return new Property("identifier", "Identifier",
          "A formal identifier that is used to identify this code system when it is represented in other formats, or referenced in a specification, model, design or an instance.",
          0, java.lang.Integer.MAX_VALUE, identifier);
    case 351608024:
      /* version */ return new Property("version", "string",
          "The identifier that is used to identify this version of the code system when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the code system author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. This is used in [Coding](datatypes.html#Coding).version.",
          0, 1, version);
    case 3373707:
      /* name */ return new Property("name", "string",
          "A natural language name identifying the code system. This name should be usable as an identifier for the module by machine processing applications such as code generation.",
          0, 1, name);
    case 110371416:
      /* title */ return new Property("title", "string",
          "A short, descriptive, user-friendly title for the code system.", 0, 1, title);
    case -892481550:
      /* status */ return new Property("status", "code",
          "The date (and optionally time) when the code system resource was created or revised.", 0, 1, status);
    case -404562712:
      /* experimental */ return new Property("experimental", "boolean",
          "A Boolean value to indicate that this code system is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.",
          0, 1, experimental);
    case 3076014:
      /* date */ return new Property("date", "dateTime",
          "The date  (and optionally time) when the code system was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the code system changes.",
          0, 1, date);
    case 1447404028:
      /* publisher */ return new Property("publisher", "string",
          "The name of the organization or individual that published the code system.", 0, 1, publisher);
    case 951526432:
      /* contact */ return new Property("contact", "ContactDetail",
          "Contact details to assist a user in finding and communicating with the publisher.", 0,
          java.lang.Integer.MAX_VALUE, contact);
    case -1724546052:
      /* description */ return new Property("description", "markdown",
          "A free text natural language description of the code system from a consumer's perspective.", 0, 1,
          description);
    case -669707736:
      /* useContext */ return new Property("useContext", "UsageContext",
          "The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate code system instances.",
          0, java.lang.Integer.MAX_VALUE, useContext);
    case -507075711:
      /* jurisdiction */ return new Property("jurisdiction", "CodeableConcept",
          "A legal or geographic region in which the code system is intended to be used.", 0,
          java.lang.Integer.MAX_VALUE, jurisdiction);
    case -220463842:
      /* purpose */ return new Property("purpose", "markdown",
          "Explanation of why this code system is needed and why it has been designed as it has.", 0, 1, purpose);
    case 1522889671:
      /* copyright */ return new Property("copyright", "markdown",
          "A copyright statement relating to the code system and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the code system.",
          0, 1, copyright);
    case -35616442:
      /* caseSensitive */ return new Property("caseSensitive", "boolean",
          "If code comparison is case sensitive when codes within this system are compared to each other.", 0, 1,
          caseSensitive);
    case -1410174671:
      /* valueSet */ return new Property("valueSet", "canonical(ValueSet)",
          "Canonical reference to the value set that contains the entire code system.", 0, 1, valueSet);
    case 1913078280:
      /* hierarchyMeaning */ return new Property("hierarchyMeaning", "code",
          "The meaning of the hierarchy of concepts as represented in this resource.", 0, 1, hierarchyMeaning);
    case 1248023381:
      /* compositional */ return new Property("compositional", "boolean",
          "The code system defines a compositional (post-coordination) grammar.", 0, 1, compositional);
    case 617270957:
      /* versionNeeded */ return new Property("versionNeeded", "boolean",
          "This flag is used to signify that the code system does not commit to concept permanence across versions. If true, a version must be specified when referencing this code system.",
          0, 1, versionNeeded);
    case 951530617:
      /* content */ return new Property("content", "code",
          "The extent of the content of the code system (the concepts and codes it defines) are represented in this resource instance.",
          0, 1, content);
    case -596951334:
      /* supplements */ return new Property("supplements", "canonical(CodeSystem)",
          "The canonical URL of the code system that this code system supplement is adding designations and properties to.",
          0, 1, supplements);
    case 94851343:
      /* count */ return new Property("count", "unsignedInt",
          "The total number of concepts defined by the code system. Where the code system has a compositional grammar, the basis of this count is defined by the system steward.",
          0, 1, count);
    case -1274492040:
      /* filter */ return new Property("filter", "",
          "A filter that can be used in a value set compose statement when selecting concepts using a filter.", 0,
          java.lang.Integer.MAX_VALUE, filter);
    case -993141291:
      /* property */ return new Property("property", "",
          "A property defines an additional slot through which additional information can be provided about a concept.",
          0, java.lang.Integer.MAX_VALUE, property);
    case 951024232:
      /* concept */ return new Property("concept", "",
          "Concepts that are in the code system. The concept definitions are inherently hierarchical, but the definitions must be consulted to determine what the meanings of the hierarchical relationships are.",
          0, java.lang.Integer.MAX_VALUE, concept);
    default:
      return super.getNamedProperty(_hash, _name, _checkValid);
    }

  }

  @Override
  public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
    switch (hash) {
    case 116079:
      /* url */ return this.url == null ? new Base[0] : new Base[] { this.url }; // UriType
    case -1618432855:
      /* identifier */ return this.identifier == null ? new Base[0]
          : this.identifier.toArray(new Base[this.identifier.size()]); // Identifier
    case 351608024:
      /* version */ return this.version == null ? new Base[0] : new Base[] { this.version }; // StringType
    case 3373707:
      /* name */ return this.name == null ? new Base[0] : new Base[] { this.name }; // StringType
    case 110371416:
      /* title */ return this.title == null ? new Base[0] : new Base[] { this.title }; // StringType
    case -892481550:
      /* status */ return this.status == null ? new Base[0] : new Base[] { this.status }; // Enumeration<PublicationStatus>
    case -404562712:
      /* experimental */ return this.experimental == null ? new Base[0] : new Base[] { this.experimental }; // BooleanType
    case 3076014:
      /* date */ return this.date == null ? new Base[0] : new Base[] { this.date }; // DateTimeType
    case 1447404028:
      /* publisher */ return this.publisher == null ? new Base[0] : new Base[] { this.publisher }; // StringType
    case 951526432:
      /* contact */ return this.contact == null ? new Base[0] : this.contact.toArray(new Base[this.contact.size()]); // ContactDetail
    case -1724546052:
      /* description */ return this.description == null ? new Base[0] : new Base[] { this.description }; // MarkdownType
    case -669707736:
      /* useContext */ return this.useContext == null ? new Base[0]
          : this.useContext.toArray(new Base[this.useContext.size()]); // UsageContext
    case -507075711:
      /* jurisdiction */ return this.jurisdiction == null ? new Base[0]
          : this.jurisdiction.toArray(new Base[this.jurisdiction.size()]); // CodeableConcept
    case -220463842:
      /* purpose */ return this.purpose == null ? new Base[0] : new Base[] { this.purpose }; // MarkdownType
    case 1522889671:
      /* copyright */ return this.copyright == null ? new Base[0] : new Base[] { this.copyright }; // MarkdownType
    case -35616442:
      /* caseSensitive */ return this.caseSensitive == null ? new Base[0] : new Base[] { this.caseSensitive }; // BooleanType
    case -1410174671:
      /* valueSet */ return this.valueSet == null ? new Base[0] : new Base[] { this.valueSet }; // CanonicalType
    case 1913078280:
      /* hierarchyMeaning */ return this.hierarchyMeaning == null ? new Base[0] : new Base[] { this.hierarchyMeaning }; // Enumeration<CodeSystemHierarchyMeaning>
    case 1248023381:
      /* compositional */ return this.compositional == null ? new Base[0] : new Base[] { this.compositional }; // BooleanType
    case 617270957:
      /* versionNeeded */ return this.versionNeeded == null ? new Base[0] : new Base[] { this.versionNeeded }; // BooleanType
    case 951530617:
      /* content */ return this.content == null ? new Base[0] : new Base[] { this.content }; // Enumeration<CodeSystemContentMode>
    case -596951334:
      /* supplements */ return this.supplements == null ? new Base[0] : new Base[] { this.supplements }; // CanonicalType
    case 94851343:
      /* count */ return this.count == null ? new Base[0] : new Base[] { this.count }; // UnsignedIntType
    case -1274492040:
      /* filter */ return this.filter == null ? new Base[0] : this.filter.toArray(new Base[this.filter.size()]); // CodeSystemFilterComponent
    case -993141291:
      /* property */ return this.property == null ? new Base[0] : this.property.toArray(new Base[this.property.size()]); // PropertyComponent
    case 951024232:
      /* concept */ return this.concept == null ? new Base[0] : this.concept.toArray(new Base[this.concept.size()]); // ConceptDefinitionComponent
    default:
      return super.getProperty(hash, name, checkValid);
    }

  }

  @Override
  public Base setProperty(int hash, String name, Base value) throws FHIRException {
    switch (hash) {
    case 116079: // url
      this.url = castToUri(value); // UriType
      return value;
    case -1618432855: // identifier
      this.getIdentifier().add(castToIdentifier(value)); // Identifier
      return value;
    case 351608024: // version
      this.version = castToString(value); // StringType
      return value;
    case 3373707: // name
      this.name = castToString(value); // StringType
      return value;
    case 110371416: // title
      this.title = castToString(value); // StringType
      return value;
    case -892481550: // status
      value = new PublicationStatusEnumFactory().fromType(castToCode(value));
      this.status = (Enumeration) value; // Enumeration<PublicationStatus>
      return value;
    case -404562712: // experimental
      this.experimental = castToBoolean(value); // BooleanType
      return value;
    case 3076014: // date
      this.date = castToDateTime(value); // DateTimeType
      return value;
    case 1447404028: // publisher
      this.publisher = castToString(value); // StringType
      return value;
    case 951526432: // contact
      this.getContact().add(castToContactDetail(value)); // ContactDetail
      return value;
    case -1724546052: // description
      this.description = castToMarkdown(value); // MarkdownType
      return value;
    case -669707736: // useContext
      this.getUseContext().add(castToUsageContext(value)); // UsageContext
      return value;
    case -507075711: // jurisdiction
      this.getJurisdiction().add(castToCodeableConcept(value)); // CodeableConcept
      return value;
    case -220463842: // purpose
      this.purpose = castToMarkdown(value); // MarkdownType
      return value;
    case 1522889671: // copyright
      this.copyright = castToMarkdown(value); // MarkdownType
      return value;
    case -35616442: // caseSensitive
      this.caseSensitive = castToBoolean(value); // BooleanType
      return value;
    case -1410174671: // valueSet
      this.valueSet = castToCanonical(value); // CanonicalType
      return value;
    case 1913078280: // hierarchyMeaning
      value = new CodeSystemHierarchyMeaningEnumFactory().fromType(castToCode(value));
      this.hierarchyMeaning = (Enumeration) value; // Enumeration<CodeSystemHierarchyMeaning>
      return value;
    case 1248023381: // compositional
      this.compositional = castToBoolean(value); // BooleanType
      return value;
    case 617270957: // versionNeeded
      this.versionNeeded = castToBoolean(value); // BooleanType
      return value;
    case 951530617: // content
      value = new CodeSystemContentModeEnumFactory().fromType(castToCode(value));
      this.content = (Enumeration) value; // Enumeration<CodeSystemContentMode>
      return value;
    case -596951334: // supplements
      this.supplements = castToCanonical(value); // CanonicalType
      return value;
    case 94851343: // count
      this.count = castToUnsignedInt(value); // UnsignedIntType
      return value;
    case -1274492040: // filter
      this.getFilter().add((CodeSystemFilterComponent) value); // CodeSystemFilterComponent
      return value;
    case -993141291: // property
      this.getProperty().add((PropertyComponent) value); // PropertyComponent
      return value;
    case 951024232: // concept
      this.getConcept().add((ConceptDefinitionComponent) value); // ConceptDefinitionComponent
      return value;
    default:
      return super.setProperty(hash, name, value);
    }

  }

  @Override
  public Base setProperty(String name, Base value) throws FHIRException {
    if (name.equals("url")) {
      this.url = castToUri(value); // UriType
    } else if (name.equals("identifier")) {
      this.getIdentifier().add(castToIdentifier(value));
    } else if (name.equals("version")) {
      this.version = castToString(value); // StringType
    } else if (name.equals("name")) {
      this.name = castToString(value); // StringType
    } else if (name.equals("title")) {
      this.title = castToString(value); // StringType
    } else if (name.equals("status")) {
      value = new PublicationStatusEnumFactory().fromType(castToCode(value));
      this.status = (Enumeration) value; // Enumeration<PublicationStatus>
    } else if (name.equals("experimental")) {
      this.experimental = castToBoolean(value); // BooleanType
    } else if (name.equals("date")) {
      this.date = castToDateTime(value); // DateTimeType
    } else if (name.equals("publisher")) {
      this.publisher = castToString(value); // StringType
    } else if (name.equals("contact")) {
      this.getContact().add(castToContactDetail(value));
    } else if (name.equals("description")) {
      this.description = castToMarkdown(value); // MarkdownType
    } else if (name.equals("useContext")) {
      this.getUseContext().add(castToUsageContext(value));
    } else if (name.equals("jurisdiction")) {
      this.getJurisdiction().add(castToCodeableConcept(value));
    } else if (name.equals("purpose")) {
      this.purpose = castToMarkdown(value); // MarkdownType
    } else if (name.equals("copyright")) {
      this.copyright = castToMarkdown(value); // MarkdownType
    } else if (name.equals("caseSensitive")) {
      this.caseSensitive = castToBoolean(value); // BooleanType
    } else if (name.equals("valueSet")) {
      this.valueSet = castToCanonical(value); // CanonicalType
    } else if (name.equals("hierarchyMeaning")) {
      value = new CodeSystemHierarchyMeaningEnumFactory().fromType(castToCode(value));
      this.hierarchyMeaning = (Enumeration) value; // Enumeration<CodeSystemHierarchyMeaning>
    } else if (name.equals("compositional")) {
      this.compositional = castToBoolean(value); // BooleanType
    } else if (name.equals("versionNeeded")) {
      this.versionNeeded = castToBoolean(value); // BooleanType
    } else if (name.equals("content")) {
      value = new CodeSystemContentModeEnumFactory().fromType(castToCode(value));
      this.content = (Enumeration) value; // Enumeration<CodeSystemContentMode>
    } else if (name.equals("supplements")) {
      this.supplements = castToCanonical(value); // CanonicalType
    } else if (name.equals("count")) {
      this.count = castToUnsignedInt(value); // UnsignedIntType
    } else if (name.equals("filter")) {
      this.getFilter().add((CodeSystemFilterComponent) value);
    } else if (name.equals("property")) {
      this.getProperty().add((PropertyComponent) value);
    } else if (name.equals("concept")) {
      this.getConcept().add((ConceptDefinitionComponent) value);
    } else
      return super.setProperty(name, value);
    return value;
  }

  @Override
  public void removeChild(String name, Base value) throws FHIRException {
    if (name.equals("url")) {
      this.url = null;
    } else if (name.equals("identifier")) {
      this.getIdentifier().remove(castToIdentifier(value));
    } else if (name.equals("version")) {
      this.version = null;
    } else if (name.equals("name")) {
      this.name = null;
    } else if (name.equals("title")) {
      this.title = null;
    } else if (name.equals("status")) {
      this.status = null;
    } else if (name.equals("experimental")) {
      this.experimental = null;
    } else if (name.equals("date")) {
      this.date = null;
    } else if (name.equals("publisher")) {
      this.publisher = null;
    } else if (name.equals("contact")) {
      this.getContact().remove(castToContactDetail(value));
    } else if (name.equals("description")) {
      this.description = null;
    } else if (name.equals("useContext")) {
      this.getUseContext().remove(castToUsageContext(value));
    } else if (name.equals("jurisdiction")) {
      this.getJurisdiction().remove(castToCodeableConcept(value));
    } else if (name.equals("purpose")) {
      this.purpose = null;
    } else if (name.equals("copyright")) {
      this.copyright = null;
    } else if (name.equals("caseSensitive")) {
      this.caseSensitive = null;
    } else if (name.equals("valueSet")) {
      this.valueSet = null;
    } else if (name.equals("hierarchyMeaning")) {
      this.hierarchyMeaning = null;
    } else if (name.equals("compositional")) {
      this.compositional = null;
    } else if (name.equals("versionNeeded")) {
      this.versionNeeded = null;
    } else if (name.equals("content")) {
      this.content = null;
    } else if (name.equals("supplements")) {
      this.supplements = null;
    } else if (name.equals("count")) {
      this.count = null;
    } else if (name.equals("filter")) {
      this.getFilter().remove((CodeSystemFilterComponent) value);
    } else if (name.equals("property")) {
      this.getProperty().remove((PropertyComponent) value);
    } else if (name.equals("concept")) {
      this.getConcept().remove((ConceptDefinitionComponent) value);
    } else
      super.removeChild(name, value);
    
  }

  @Override
  public Base makeProperty(int hash, String name) throws FHIRException {
    switch (hash) {
    case 116079:
      return getUrlElement();
    case -1618432855:
      return addIdentifier();
    case 351608024:
      return getVersionElement();
    case 3373707:
      return getNameElement();
    case 110371416:
      return getTitleElement();
    case -892481550:
      return getStatusElement();
    case -404562712:
      return getExperimentalElement();
    case 3076014:
      return getDateElement();
    case 1447404028:
      return getPublisherElement();
    case 951526432:
      return addContact();
    case -1724546052:
      return getDescriptionElement();
    case -669707736:
      return addUseContext();
    case -507075711:
      return addJurisdiction();
    case -220463842:
      return getPurposeElement();
    case 1522889671:
      return getCopyrightElement();
    case -35616442:
      return getCaseSensitiveElement();
    case -1410174671:
      return getValueSetElement();
    case 1913078280:
      return getHierarchyMeaningElement();
    case 1248023381:
      return getCompositionalElement();
    case 617270957:
      return getVersionNeededElement();
    case 951530617:
      return getContentElement();
    case -596951334:
      return getSupplementsElement();
    case 94851343:
      return getCountElement();
    case -1274492040:
      return addFilter();
    case -993141291:
      return addProperty();
    case 951024232:
      return addConcept();
    default:
      return super.makeProperty(hash, name);
    }

  }

  @Override
  public String[] getTypesForProperty(int hash, String name) throws FHIRException {
    switch (hash) {
    case 116079:
      /* url */ return new String[] { "uri" };
    case -1618432855:
      /* identifier */ return new String[] { "Identifier" };
    case 351608024:
      /* version */ return new String[] { "string" };
    case 3373707:
      /* name */ return new String[] { "string" };
    case 110371416:
      /* title */ return new String[] { "string" };
    case -892481550:
      /* status */ return new String[] { "code" };
    case -404562712:
      /* experimental */ return new String[] { "boolean" };
    case 3076014:
      /* date */ return new String[] { "dateTime" };
    case 1447404028:
      /* publisher */ return new String[] { "string" };
    case 951526432:
      /* contact */ return new String[] { "ContactDetail" };
    case -1724546052:
      /* description */ return new String[] { "markdown" };
    case -669707736:
      /* useContext */ return new String[] { "UsageContext" };
    case -507075711:
      /* jurisdiction */ return new String[] { "CodeableConcept" };
    case -220463842:
      /* purpose */ return new String[] { "markdown" };
    case 1522889671:
      /* copyright */ return new String[] { "markdown" };
    case -35616442:
      /* caseSensitive */ return new String[] { "boolean" };
    case -1410174671:
      /* valueSet */ return new String[] { "canonical" };
    case 1913078280:
      /* hierarchyMeaning */ return new String[] { "code" };
    case 1248023381:
      /* compositional */ return new String[] { "boolean" };
    case 617270957:
      /* versionNeeded */ return new String[] { "boolean" };
    case 951530617:
      /* content */ return new String[] { "code" };
    case -596951334:
      /* supplements */ return new String[] { "canonical" };
    case 94851343:
      /* count */ return new String[] { "unsignedInt" };
    case -1274492040:
      /* filter */ return new String[] {};
    case -993141291:
      /* property */ return new String[] {};
    case 951024232:
      /* concept */ return new String[] {};
    default:
      return super.getTypesForProperty(hash, name);
    }

  }

  @Override
  public Base addChild(String name) throws FHIRException {
    if (name.equals("url")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.url");
    } else if (name.equals("identifier")) {
      return addIdentifier();
    } else if (name.equals("version")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.version");
    } else if (name.equals("name")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.name");
    } else if (name.equals("title")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.title");
    } else if (name.equals("status")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.status");
    } else if (name.equals("experimental")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.experimental");
    } else if (name.equals("date")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.date");
    } else if (name.equals("publisher")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.publisher");
    } else if (name.equals("contact")) {
      return addContact();
    } else if (name.equals("description")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.description");
    } else if (name.equals("useContext")) {
      return addUseContext();
    } else if (name.equals("jurisdiction")) {
      return addJurisdiction();
    } else if (name.equals("purpose")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.purpose");
    } else if (name.equals("copyright")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.copyright");
    } else if (name.equals("caseSensitive")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.caseSensitive");
    } else if (name.equals("valueSet")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.valueSet");
    } else if (name.equals("hierarchyMeaning")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.hierarchyMeaning");
    } else if (name.equals("compositional")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.compositional");
    } else if (name.equals("versionNeeded")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.versionNeeded");
    } else if (name.equals("content")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.content");
    } else if (name.equals("supplements")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.supplements");
    } else if (name.equals("count")) {
      throw new FHIRException("Cannot call addChild on a singleton property CodeSystem.count");
    } else if (name.equals("filter")) {
      return addFilter();
    } else if (name.equals("property")) {
      return addProperty();
    } else if (name.equals("concept")) {
      return addConcept();
    } else
      return super.addChild(name);
  }

  public String fhirType() {
    return "CodeSystem";

  }

  public CodeSystem copy() {
    CodeSystem dst = new CodeSystem();
    copyValues(dst);
    return dst;
  }

  public void copyValues(CodeSystem dst) {
    super.copyValues(dst);
    dst.url = url == null ? null : url.copy();
    if (identifier != null) {
      dst.identifier = new ArrayList<Identifier>();
      for (Identifier i : identifier)
        dst.identifier.add(i.copy());
    }
    ;
    dst.version = version == null ? null : version.copy();
    dst.name = name == null ? null : name.copy();
    dst.title = title == null ? null : title.copy();
    dst.status = status == null ? null : status.copy();
    dst.experimental = experimental == null ? null : experimental.copy();
    dst.date = date == null ? null : date.copy();
    dst.publisher = publisher == null ? null : publisher.copy();
    if (contact != null) {
      dst.contact = new ArrayList<ContactDetail>();
      for (ContactDetail i : contact)
        dst.contact.add(i.copy());
    }
    ;
    dst.description = description == null ? null : description.copy();
    if (useContext != null) {
      dst.useContext = new ArrayList<UsageContext>();
      for (UsageContext i : useContext)
        dst.useContext.add(i.copy());
    }
    ;
    if (jurisdiction != null) {
      dst.jurisdiction = new ArrayList<CodeableConcept>();
      for (CodeableConcept i : jurisdiction)
        dst.jurisdiction.add(i.copy());
    }
    ;
    dst.purpose = purpose == null ? null : purpose.copy();
    dst.copyright = copyright == null ? null : copyright.copy();
    dst.caseSensitive = caseSensitive == null ? null : caseSensitive.copy();
    dst.valueSet = valueSet == null ? null : valueSet.copy();
    dst.hierarchyMeaning = hierarchyMeaning == null ? null : hierarchyMeaning.copy();
    dst.compositional = compositional == null ? null : compositional.copy();
    dst.versionNeeded = versionNeeded == null ? null : versionNeeded.copy();
    dst.content = content == null ? null : content.copy();
    dst.supplements = supplements == null ? null : supplements.copy();
    dst.count = count == null ? null : count.copy();
    if (filter != null) {
      dst.filter = new ArrayList<CodeSystemFilterComponent>();
      for (CodeSystemFilterComponent i : filter)
        dst.filter.add(i.copy());
    }
    ;
    if (property != null) {
      dst.property = new ArrayList<PropertyComponent>();
      for (PropertyComponent i : property)
        dst.property.add(i.copy());
    }
    ;
    if (concept != null) {
      dst.concept = new ArrayList<ConceptDefinitionComponent>();
      for (ConceptDefinitionComponent i : concept)
        dst.concept.add(i.copy());
    }
    ;
  }

  protected CodeSystem typedCopy() {
    return copy();
  }

  @Override
  public boolean equalsDeep(Base other_) {
    if (!super.equalsDeep(other_))
      return false;
    if (!(other_ instanceof CodeSystem))
      return false;
    CodeSystem o = (CodeSystem) other_;
    return compareDeep(identifier, o.identifier, true) && compareDeep(purpose, o.purpose, true)
        && compareDeep(copyright, o.copyright, true) && compareDeep(caseSensitive, o.caseSensitive, true)
        && compareDeep(valueSet, o.valueSet, true) && compareDeep(hierarchyMeaning, o.hierarchyMeaning, true)
        && compareDeep(compositional, o.compositional, true) && compareDeep(versionNeeded, o.versionNeeded, true)
        && compareDeep(content, o.content, true) && compareDeep(supplements, o.supplements, true)
        && compareDeep(count, o.count, true) && compareDeep(filter, o.filter, true)
        && compareDeep(property, o.property, true) && compareDeep(concept, o.concept, true);
  }

  @Override
  public boolean equalsShallow(Base other_) {
    if (!super.equalsShallow(other_))
      return false;
    if (!(other_ instanceof CodeSystem))
      return false;
    CodeSystem o = (CodeSystem) other_;
    return compareValues(purpose, o.purpose, true) && compareValues(copyright, o.copyright, true)
        && compareValues(caseSensitive, o.caseSensitive, true)
        && compareValues(hierarchyMeaning, o.hierarchyMeaning, true)
        && compareValues(compositional, o.compositional, true) && compareValues(versionNeeded, o.versionNeeded, true)
        && compareValues(content, o.content, true) && compareValues(count, o.count, true);
  }

  public boolean isEmpty() {
    return super.isEmpty()
        && ca.uhn.fhir.util.ElementUtil.isEmpty(identifier, purpose, copyright, caseSensitive, valueSet,
            hierarchyMeaning, compositional, versionNeeded, content, supplements, count, filter, property, concept);
  }

  @Override
  public ResourceType getResourceType() {
    return ResourceType.CodeSystem;
  }

  /**
   * Search parameter: <b>date</b>
   * <p>
   * Description: <b>The code system publication date</b><br>
   * Type: <b>date</b><br>
   * Path: <b>CodeSystem.date</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "date", path = "CodeSystem.date", description = "The code system publication date", type = "date")
  public static final String SP_DATE = "date";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>date</b>
   * <p>
   * Description: <b>The code system publication date</b><br>
   * Type: <b>date</b><br>
   * Path: <b>CodeSystem.date</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.DateClientParam DATE = new ca.uhn.fhir.rest.gclient.DateClientParam(
      SP_DATE);

  /**
   * Search parameter: <b>identifier</b>
   * <p>
   * Description: <b>External identifier for the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.identifier</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "identifier", path = "CodeSystem.identifier", description = "External identifier for the code system", type = "token")
  public static final String SP_IDENTIFIER = "identifier";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>identifier</b>
   * <p>
   * Description: <b>External identifier for the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.identifier</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam IDENTIFIER = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_IDENTIFIER);

  /**
   * Search parameter: <b>code</b>
   * <p>
   * Description: <b>A code defined in the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.concept.code</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "code", path = "CodeSystem.concept.code", description = "A code defined in the code system", type = "token")
  public static final String SP_CODE = "code";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>code</b>
   * <p>
   * Description: <b>A code defined in the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.concept.code</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam CODE = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_CODE);

  /**
   * Search parameter: <b>context-type-value</b>
   * <p>
   * Description: <b>A use context type and value assigned to the code
   * system</b><br>
   * Type: <b>composite</b><br>
   * Path: <b></b><br>
   * </p>
   */
  @SearchParamDefinition(name = "context-type-value", path = "CodeSystem.useContext", description = "A use context type and value assigned to the code system", type = "composite", compositeOf = {
      "context-type", "context" })
  public static final String SP_CONTEXT_TYPE_VALUE = "context-type-value";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>context-type-value</b>
   * <p>
   * Description: <b>A use context type and value assigned to the code
   * system</b><br>
   * Type: <b>composite</b><br>
   * Path: <b></b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.CompositeClientParam<ca.uhn.fhir.rest.gclient.TokenClientParam, ca.uhn.fhir.rest.gclient.TokenClientParam> CONTEXT_TYPE_VALUE = new ca.uhn.fhir.rest.gclient.CompositeClientParam<ca.uhn.fhir.rest.gclient.TokenClientParam, ca.uhn.fhir.rest.gclient.TokenClientParam>(
      SP_CONTEXT_TYPE_VALUE);

  /**
   * Search parameter: <b>content-mode</b>
   * <p>
   * Description: <b>not-present | example | fragment | complete |
   * supplement</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.content</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "content-mode", path = "CodeSystem.content", description = "not-present | example | fragment | complete | supplement", type = "token")
  public static final String SP_CONTENT_MODE = "content-mode";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>content-mode</b>
   * <p>
   * Description: <b>not-present | example | fragment | complete |
   * supplement</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.content</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam CONTENT_MODE = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_CONTENT_MODE);

  /**
   * Search parameter: <b>jurisdiction</b>
   * <p>
   * Description: <b>Intended jurisdiction for the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.jurisdiction</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "jurisdiction", path = "CodeSystem.jurisdiction", description = "Intended jurisdiction for the code system", type = "token")
  public static final String SP_JURISDICTION = "jurisdiction";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>jurisdiction</b>
   * <p>
   * Description: <b>Intended jurisdiction for the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.jurisdiction</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam JURISDICTION = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_JURISDICTION);

  /**
   * Search parameter: <b>description</b>
   * <p>
   * Description: <b>The description of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.description</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "description", path = "CodeSystem.description", description = "The description of the code system", type = "string")
  public static final String SP_DESCRIPTION = "description";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>description</b>
   * <p>
   * Description: <b>The description of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.description</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.StringClientParam DESCRIPTION = new ca.uhn.fhir.rest.gclient.StringClientParam(
      SP_DESCRIPTION);

  /**
   * Search parameter: <b>context-type</b>
   * <p>
   * Description: <b>A type of use context assigned to the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.useContext.code</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "context-type", path = "CodeSystem.useContext.code", description = "A type of use context assigned to the code system", type = "token")
  public static final String SP_CONTEXT_TYPE = "context-type";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>context-type</b>
   * <p>
   * Description: <b>A type of use context assigned to the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.useContext.code</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam CONTEXT_TYPE = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_CONTEXT_TYPE);

  /**
   * Search parameter: <b>language</b>
   * <p>
   * Description: <b>A language in which a designation is provided</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.concept.designation.language</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "language", path = "CodeSystem.concept.designation.language", description = "A language in which a designation is provided", type = "token")
  public static final String SP_LANGUAGE = "language";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>language</b>
   * <p>
   * Description: <b>A language in which a designation is provided</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.concept.designation.language</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam LANGUAGE = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_LANGUAGE);

  /**
   * Search parameter: <b>title</b>
   * <p>
   * Description: <b>The human-friendly name of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.title</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "title", path = "CodeSystem.title", description = "The human-friendly name of the code system", type = "string")
  public static final String SP_TITLE = "title";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>title</b>
   * <p>
   * Description: <b>The human-friendly name of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.title</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.StringClientParam TITLE = new ca.uhn.fhir.rest.gclient.StringClientParam(
      SP_TITLE);

  /**
   * Search parameter: <b>version</b>
   * <p>
   * Description: <b>The business version of the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.version</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "version", path = "CodeSystem.version", description = "The business version of the code system", type = "token")
  public static final String SP_VERSION = "version";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>version</b>
   * <p>
   * Description: <b>The business version of the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.version</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam VERSION = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_VERSION);

  /**
   * Search parameter: <b>url</b>
   * <p>
   * Description: <b>The uri that identifies the code system</b><br>
   * Type: <b>uri</b><br>
   * Path: <b>CodeSystem.url</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "url", path = "CodeSystem.url", description = "The uri that identifies the code system", type = "uri")
  public static final String SP_URL = "url";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>url</b>
   * <p>
   * Description: <b>The uri that identifies the code system</b><br>
   * Type: <b>uri</b><br>
   * Path: <b>CodeSystem.url</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.UriClientParam URL = new ca.uhn.fhir.rest.gclient.UriClientParam(SP_URL);

  /**
   * Search parameter: <b>context-quantity</b>
   * <p>
   * Description: <b>A quantity- or range-valued use context assigned to the code
   * system</b><br>
   * Type: <b>quantity</b><br>
   * Path: <b>CodeSystem.useContext.valueQuantity,
   * CodeSystem.useContext.valueRange</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "context-quantity", path = "(CodeSystem.useContext.value as Quantity) | (CodeSystem.useContext.value as Range)", description = "A quantity- or range-valued use context assigned to the code system", type = "quantity")
  public static final String SP_CONTEXT_QUANTITY = "context-quantity";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>context-quantity</b>
   * <p>
   * Description: <b>A quantity- or range-valued use context assigned to the code
   * system</b><br>
   * Type: <b>quantity</b><br>
   * Path: <b>CodeSystem.useContext.valueQuantity,
   * CodeSystem.useContext.valueRange</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.QuantityClientParam CONTEXT_QUANTITY = new ca.uhn.fhir.rest.gclient.QuantityClientParam(
      SP_CONTEXT_QUANTITY);

  /**
   * Search parameter: <b>supplements</b>
   * <p>
   * Description: <b>Find code system supplements for the referenced code
   * system</b><br>
   * Type: <b>reference</b><br>
   * Path: <b>CodeSystem.supplements</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "supplements", path = "CodeSystem.supplements", description = "Find code system supplements for the referenced code system", type = "reference", target = {
      CodeSystem.class })
  public static final String SP_SUPPLEMENTS = "supplements";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>supplements</b>
   * <p>
   * Description: <b>Find code system supplements for the referenced code
   * system</b><br>
   * Type: <b>reference</b><br>
   * Path: <b>CodeSystem.supplements</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.ReferenceClientParam SUPPLEMENTS = new ca.uhn.fhir.rest.gclient.ReferenceClientParam(
      SP_SUPPLEMENTS);

  /**
   * Constant for fluent queries to be used to add include statements. Specifies
   * the path value of "<b>CodeSystem:supplements</b>".
   */
  public static final ca.uhn.fhir.model.api.Include INCLUDE_SUPPLEMENTS = new ca.uhn.fhir.model.api.Include(
      "CodeSystem:supplements").toLocked();

  /**
   * Search parameter: <b>system</b>
   * <p>
   * Description: <b>The system for any codes defined by this code system (same as
   * 'url')</b><br>
   * Type: <b>uri</b><br>
   * Path: <b>CodeSystem.url</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "system", path = "CodeSystem.url", description = "The system for any codes defined by this code system (same as 'url')", type = "uri")
  public static final String SP_SYSTEM = "system";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>system</b>
   * <p>
   * Description: <b>The system for any codes defined by this code system (same as
   * 'url')</b><br>
   * Type: <b>uri</b><br>
   * Path: <b>CodeSystem.url</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.UriClientParam SYSTEM = new ca.uhn.fhir.rest.gclient.UriClientParam(
      SP_SYSTEM);

  /**
   * Search parameter: <b>name</b>
   * <p>
   * Description: <b>Computationally friendly name of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.name</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "name", path = "CodeSystem.name", description = "Computationally friendly name of the code system", type = "string")
  public static final String SP_NAME = "name";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>name</b>
   * <p>
   * Description: <b>Computationally friendly name of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.name</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.StringClientParam NAME = new ca.uhn.fhir.rest.gclient.StringClientParam(
      SP_NAME);

  /**
   * Search parameter: <b>context</b>
   * <p>
   * Description: <b>A use context assigned to the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.useContext.valueCodeableConcept</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "context", path = "(CodeSystem.useContext.value as CodeableConcept)", description = "A use context assigned to the code system", type = "token")
  public static final String SP_CONTEXT = "context";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>context</b>
   * <p>
   * Description: <b>A use context assigned to the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.useContext.valueCodeableConcept</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam CONTEXT = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_CONTEXT);

  /**
   * Search parameter: <b>publisher</b>
   * <p>
   * Description: <b>Name of the publisher of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.publisher</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "publisher", path = "CodeSystem.publisher", description = "Name of the publisher of the code system", type = "string")
  public static final String SP_PUBLISHER = "publisher";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>publisher</b>
   * <p>
   * Description: <b>Name of the publisher of the code system</b><br>
   * Type: <b>string</b><br>
   * Path: <b>CodeSystem.publisher</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.StringClientParam PUBLISHER = new ca.uhn.fhir.rest.gclient.StringClientParam(
      SP_PUBLISHER);

  /**
   * Search parameter: <b>context-type-quantity</b>
   * <p>
   * Description: <b>A use context type and quantity- or range-based value
   * assigned to the code system</b><br>
   * Type: <b>composite</b><br>
   * Path: <b></b><br>
   * </p>
   */
  @SearchParamDefinition(name = "context-type-quantity", path = "CodeSystem.useContext", description = "A use context type and quantity- or range-based value assigned to the code system", type = "composite", compositeOf = {
      "context-type", "context-quantity" })
  public static final String SP_CONTEXT_TYPE_QUANTITY = "context-type-quantity";
  /**
   * <b>Fluent Client</b> search parameter constant for
   * <b>context-type-quantity</b>
   * <p>
   * Description: <b>A use context type and quantity- or range-based value
   * assigned to the code system</b><br>
   * Type: <b>composite</b><br>
   * Path: <b></b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.CompositeClientParam<ca.uhn.fhir.rest.gclient.TokenClientParam, ca.uhn.fhir.rest.gclient.QuantityClientParam> CONTEXT_TYPE_QUANTITY = new ca.uhn.fhir.rest.gclient.CompositeClientParam<ca.uhn.fhir.rest.gclient.TokenClientParam, ca.uhn.fhir.rest.gclient.QuantityClientParam>(
      SP_CONTEXT_TYPE_QUANTITY);

  /**
   * Search parameter: <b>status</b>
   * <p>
   * Description: <b>The current status of the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.status</b><br>
   * </p>
   */
  @SearchParamDefinition(name = "status", path = "CodeSystem.status", description = "The current status of the code system", type = "token")
  public static final String SP_STATUS = "status";
  /**
   * <b>Fluent Client</b> search parameter constant for <b>status</b>
   * <p>
   * Description: <b>The current status of the code system</b><br>
   * Type: <b>token</b><br>
   * Path: <b>CodeSystem.status</b><br>
   * </p>
   */
  public static final ca.uhn.fhir.rest.gclient.TokenClientParam STATUS = new ca.uhn.fhir.rest.gclient.TokenClientParam(
      SP_STATUS);

// added from java-adornments.txt:
  public PropertyComponent getProperty(String code) {
    for (PropertyComponent pd : getProperty()) {
      if (pd.getCode().equalsIgnoreCase(code))
        return pd;
    }
    return null;
  }

  public class ConceptDefinitionComponentSorter implements Comparator<ConceptDefinitionComponent> {
    @Override
    public int compare(ConceptDefinitionComponent l, ConceptDefinitionComponent r) {
      return l.getCode().compareTo(r.getCode());
    }
  }

  public void sort() {
    sort(getConcept(), new ConceptDefinitionComponentSorter());
  }

  public void sort(List<ConceptDefinitionComponent> list, Comparator<ConceptDefinitionComponent> comp) {
    Collections.sort(list, comp);
    for (ConceptDefinitionComponent def : list) {
      if (def.hasConcept()) {
        sort(def.getConcept(), comp);
      }
    }
  }

  public void sort(Comparator<ConceptDefinitionComponent> comp) {
    sort(getConcept(), comp);
  }

// end addition

}