org.hibernate.envers.synchronization.work.CollectionChangeWorkUnit 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
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*/
package org.hibernate.envers.synchronization.work;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.envers.configuration.AuditConfiguration;
/**
* @author Adam Warski (adam at warski dot org)
* @author Michal Skowronek (mskowr at o2 dot pl)
*/
public class CollectionChangeWorkUnit extends AbstractAuditWorkUnit implements AuditWorkUnit {
private Object entity;
private final String collectionPropertyName;
private final Map data = new HashMap();
public CollectionChangeWorkUnit(SessionImplementor session, String entityName, String collectionPropertyName,
AuditConfiguration verCfg, Serializable id, Object entity) {
super(session, entityName, verCfg, id, RevisionType.MOD);
this.entity = entity;
this.collectionPropertyName = collectionPropertyName;
}
public boolean containsWork() {
return true;
}
public Map generateData(Object revisionData) {
fillDataWithId(data, revisionData);
Map preGenerateData = new HashMap(data);
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper()
.mapToMapFromEntity(sessionImplementor, data, entity, null);
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper()
.mapModifiedFlagsToMapFromEntity(sessionImplementor, data, entity, entity);
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper()
.mapModifiedFlagsToMapForCollectionChange(collectionPropertyName, data);
data.putAll(preGenerateData);
return data;
}
public void mergeCollectionModifiedData(Map data) {
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper()
.mapModifiedFlagsToMapForCollectionChange(
collectionPropertyName, data);
}
public AuditWorkUnit merge(AddWorkUnit second) {
return second;
}
public AuditWorkUnit merge(ModWorkUnit second) {
mergeCollectionModifiedData(second.getData());
return second;
}
public AuditWorkUnit merge(DelWorkUnit second) {
return second;
}
public AuditWorkUnit merge(CollectionChangeWorkUnit second) {
second.mergeCollectionModifiedData(data);
return this;
}
public AuditWorkUnit merge(FakeBidirectionalRelationWorkUnit second) {
return second;
}
public AuditWorkUnit dispatch(WorkUnitMergeVisitor first) {
return first.merge(this);
}
}