org.hibernate.envers.entities.mapper.relation.MapCollectionMapper Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.entities.mapper.relation;
import java.io.Serializable;
import java.util.Collection;
import java.util.Map;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.envers.configuration.AuditConfiguration;
import org.hibernate.envers.entities.mapper.PropertyMapper;
import org.hibernate.envers.entities.mapper.relation.lazy.initializor.Initializor;
import org.hibernate.envers.entities.mapper.relation.lazy.initializor.MapCollectionInitializor;
import org.hibernate.envers.reader.AuditReaderImplementor;
/**
* @author Adam Warski (adam at warski dot org)
*/
public class MapCollectionMapper extends AbstractCollectionMapper implements PropertyMapper {
protected final MiddleComponentData elementComponentData;
protected final MiddleComponentData indexComponentData;
public MapCollectionMapper(CommonCollectionMapperData commonCollectionMapperData,
Class collectionClass, Class proxyClass,
MiddleComponentData elementComponentData, MiddleComponentData indexComponentData) {
super(commonCollectionMapperData, collectionClass, proxyClass);
this.elementComponentData = elementComponentData;
this.indexComponentData = indexComponentData;
}
protected Initializor getInitializor(AuditConfiguration verCfg, AuditReaderImplementor versionsReader,
Object primaryKey, Number revision) {
return new MapCollectionInitializor(verCfg, versionsReader, commonCollectionMapperData.getQueryGenerator(),
primaryKey, revision, collectionClass, elementComponentData, indexComponentData);
}
protected Collection getNewCollectionContent(PersistentCollection newCollection) {
if (newCollection == null) {
return null;
} else {
return ((Map) newCollection).entrySet();
}
}
protected Collection getOldCollectionContent(Serializable oldCollection) {
if (oldCollection == null) {
return null;
} else {
return ((Map) oldCollection).entrySet();
}
}
protected void mapToMapFromObject(Map data, Object changed) {
elementComponentData.getComponentMapper().mapToMapFromObject(data, ((Map.Entry) changed).getValue());
indexComponentData.getComponentMapper().mapToMapFromObject(data, ((Map.Entry) changed).getKey());
}
}