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/*
* 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.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;
import org.hibernate.envers.tools.Tools;
import org.hibernate.persister.entity.EntityPersister;
/**
* @author Adam Warski (adam at warski dot org)
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
*/
public class DelWorkUnit extends AbstractAuditWorkUnit implements AuditWorkUnit {
private final Object[] state;
private final EntityPersister entityPersister;
private final String[] propertyNames;
public DelWorkUnit(SessionImplementor sessionImplementor, String entityName, AuditConfiguration verCfg,
Serializable id, EntityPersister entityPersister, Object[] state) {
super(sessionImplementor, entityName, verCfg, id, RevisionType.DEL);
this.state = state;
this.entityPersister = entityPersister;
this.propertyNames = entityPersister.getPropertyNames();
}
public boolean containsWork() {
return true;
}
public Map generateData(Object revisionData) {
Map data = new HashMap();
fillDataWithId(data, revisionData);
if (verCfg.getGlobalCfg().isStoreDataAtDelete()) {
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper().map(sessionImplementor, data,
propertyNames, state, state);
} else {
verCfg.getEntCfg().get(getEntityName()).getPropertyMapper().map(sessionImplementor, data,
propertyNames, null, state);
}
return data;
}
public AuditWorkUnit merge(AddWorkUnit second) {
if (Tools.arraysEqual(second.getState(), state)) {
return null; // Return null if object's state has not changed.
}
return new ModWorkUnit(sessionImplementor, entityName, verCfg, id, entityPersister, second.getState(), state);
}
public AuditWorkUnit merge(ModWorkUnit second) {
return null;
}
public AuditWorkUnit merge(DelWorkUnit second) {
return this;
}
public AuditWorkUnit merge(CollectionChangeWorkUnit second) {
return this;
}
public AuditWorkUnit merge(FakeBidirectionalRelationWorkUnit second) {
return this;
}
public AuditWorkUnit dispatch(WorkUnitMergeVisitor first) {
return first.merge(this);
}
}