001/*-
002 * #%L
003 * HAPI FHIR JPA Server
004 * %%
005 * Copyright (C) 2014 - 2024 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.jpa.search.builder.models;
021
022import com.healthmarketscience.sqlbuilder.dbspec.basic.DbColumn;
023import org.apache.commons.lang3.builder.EqualsBuilder;
024import org.apache.commons.lang3.builder.HashCodeBuilder;
025
026public class PredicateBuilderCacheKey {
027        private final DbColumn[] myDbColumn;
028        private final PredicateBuilderTypeEnum myType;
029        private final String myParamName;
030        private final int myHashCode;
031
032        public PredicateBuilderCacheKey(DbColumn[] theDbColumn, PredicateBuilderTypeEnum theType, String theParamName) {
033                myDbColumn = theDbColumn;
034                myType = theType;
035                myParamName = theParamName;
036                HashCodeBuilder hashBuilder = new HashCodeBuilder().append(myType).append(myParamName);
037                if (theDbColumn != null) {
038                        for (DbColumn next : theDbColumn) {
039                                hashBuilder.append(next);
040                        }
041                }
042                myHashCode = hashBuilder.toHashCode();
043        }
044
045        @Override
046        public boolean equals(Object theO) {
047                if (this == theO) {
048                        return true;
049                }
050
051                if (theO == null || getClass() != theO.getClass()) {
052                        return false;
053                }
054
055                PredicateBuilderCacheKey that = (PredicateBuilderCacheKey) theO;
056
057                return new EqualsBuilder()
058                                .append(myDbColumn, that.myDbColumn)
059                                .append(myType, that.myType)
060                                .append(myParamName, that.myParamName)
061                                .isEquals();
062        }
063
064        @Override
065        public int hashCode() {
066                return myHashCode;
067        }
068}