001package org.hl7.fhir.dstu2.model; 002 003/* 004 Copyright (c) 2011+, HL7, Inc. 005 All rights reserved. 006 007 Redistribution and use in source and binary forms, with or without modification, 008 are permitted provided that the following conditions are met: 009 010 * Redistributions of source code must retain the above copyright notice, this 011 list of conditions and the following disclaimer. 012 * Redistributions in binary form must reproduce the above copyright notice, 013 this list of conditions and the following disclaimer in the documentation 014 and/or other materials provided with the distribution. 015 * Neither the name of HL7 nor the names of its contributors may be used to 016 endorse or promote products derived from this software without specific 017 prior written permission. 018 019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 020 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 021 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 022 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 024 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 025 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 026 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 027 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 028 POSSIBILITY OF SUCH DAMAGE. 029 030 */ 031 032import java.math.BigDecimal; 033import java.math.MathContext; 034import java.math.RoundingMode; 035 036import ca.uhn.fhir.model.api.annotation.DatatypeDef; 037import org.hl7.fhir.instance.model.api.IBaseDecimalDatatype; 038 039/** 040 * Primitive type "decimal" in FHIR: A rational number 041 */ 042@DatatypeDef(name = "decimal") 043public class DecimalType extends PrimitiveType<BigDecimal> implements Comparable<DecimalType>, IBaseDecimalDatatype { 044 045 private static final long serialVersionUID = 3L; 046 047 /** 048 * Constructor 049 */ 050 public DecimalType() { 051 super(); 052 } 053 054 /** 055 * Constructor 056 */ 057 public DecimalType(BigDecimal theValue) { 058 setValue(theValue); 059 } 060 061 /** 062 * Constructor 063 */ 064 public DecimalType(double theValue) { 065 // Use the valueOf here because the constructor gives wacky precision 066 // changes due to the floating point conversion 067 setValue(BigDecimal.valueOf(theValue)); 068 } 069 070 /** 071 * Constructor 072 */ 073 public DecimalType(long theValue) { 074 setValue(new BigDecimal(theValue)); 075 } 076 077 /** 078 * Constructor 079 */ 080 public DecimalType(String theValue) { 081 setValue(new BigDecimal(theValue)); 082 } 083 084 @Override 085 public int compareTo(DecimalType theObj) { 086 if (getValue() == null && theObj.getValue() == null) { 087 return 0; 088 } 089 if (getValue() != null && theObj.getValue() == null) { 090 return 1; 091 } 092 if (getValue() == null && theObj.getValue() != null) { 093 return -1; 094 } 095 return getValue().compareTo(theObj.getValue()); 096 } 097 098 @Override 099 protected String encode(BigDecimal theValue) { 100 return getValue().toPlainString(); 101 } 102 103 /** 104 * Gets the value as an integer, using {@link BigDecimal#intValue()} 105 */ 106 public int getValueAsInteger() { 107 return getValue().intValue(); 108 } 109 110 public Number getValueAsNumber() { 111 return getValue(); 112 } 113 114 @Override 115 protected BigDecimal parse(String theValue) { 116 return new BigDecimal(theValue); 117 } 118 119 /** 120 * Rounds the value to the given prevision 121 * 122 * @see MathContext#getPrecision() 123 */ 124 public void round(int thePrecision) { 125 if (getValue() != null) { 126 BigDecimal newValue = getValue().round(new MathContext(thePrecision)); 127 setValue(newValue); 128 } 129 } 130 131 /** 132 * Rounds the value to the given prevision 133 * 134 * @see MathContext#getPrecision() 135 * @see MathContext#getRoundingMode() 136 */ 137 public void round(int thePrecision, RoundingMode theRoundingMode) { 138 if (getValue() != null) { 139 BigDecimal newValue = getValue().round(new MathContext(thePrecision, theRoundingMode)); 140 setValue(newValue); 141 } 142 } 143 144 /** 145 * Sets a new value using an integer 146 */ 147 public void setValueAsInteger(int theValue) { 148 setValue(new BigDecimal(theValue)); 149 } 150 151 @Override 152 public DecimalType copy() { 153 return new DecimalType(getValue()); 154 } 155 156 public String fhirType() { 157 return "decimal"; 158 } 159}