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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, Red Hat Inc. 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 Inc.
*
* 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.internal.entities.mapper.relation;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.envers.configuration.spi.AuditConfiguration;
import org.hibernate.envers.exception.AuditException;
import org.hibernate.envers.internal.entities.PropertyData;
import org.hibernate.envers.internal.entities.mapper.PersistentCollectionChangeData;
import org.hibernate.envers.internal.entities.mapper.PropertyMapper;
import org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.Initializor;
import org.hibernate.envers.internal.reader.AuditReaderImplementor;
import org.hibernate.envers.internal.tools.ReflectionTools;
import org.hibernate.envers.internal.tools.Tools;
import org.hibernate.property.Setter;
/**
* @author Adam Warski (adam at warski dot org)
* @author Michal Skowronek (mskowr at o2 dot pl)
*/
public abstract class AbstractCollectionMapper implements PropertyMapper {
protected final CommonCollectionMapperData commonCollectionMapperData;
protected final Class collectionClass;
protected final boolean ordinalInId;
protected final boolean revisionTypeInId;
private final Constructor proxyConstructor;
protected AbstractCollectionMapper(
CommonCollectionMapperData commonCollectionMapperData,
Class collectionClass, Class proxyClass, boolean ordinalInId,
boolean revisionTypeInId) {
this.commonCollectionMapperData = commonCollectionMapperData;
this.collectionClass = collectionClass;
this.ordinalInId = ordinalInId;
this.revisionTypeInId = revisionTypeInId;
try {
proxyConstructor = proxyClass.getConstructor( Initializor.class );
}
catch (NoSuchMethodException e) {
throw new AuditException( e );
}
}
protected abstract Collection getNewCollectionContent(PersistentCollection newCollection);
protected abstract Collection getOldCollectionContent(Serializable oldCollection);
/**
* Maps the changed collection element to the given map.
*
* @param idData Map to which composite-id data should be added.
* @param data Where to map the data.
* @param changed The changed collection element to map.
*/
protected abstract void mapToMapFromObject(
SessionImplementor session,
Map idData,
Map data,
Object changed);
/**
* Creates map for storing identifier data. Ordinal parameter guarantees uniqueness of primary key.
* Composite primary key cannot contain embeddable properties since they might be nullable.
*
* @param ordinal Iteration ordinal.
*
* @return Map for holding identifier data.
*/
protected Map createIdMap(int ordinal) {
final Map idMap = new HashMap();
if ( ordinalInId ) {
idMap.put( commonCollectionMapperData.getVerEntCfg().getEmbeddableSetOrdinalPropertyName(), ordinal );
}
return idMap;
}
private void addCollectionChanges(
SessionImplementor session, List collectionChanges,
Set