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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.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.spi.AuditConfiguration;
import org.hibernate.persister.entity.EntityPersister;
/**
* @author Adam Warski (adam at warski dot org)
*/
public class ModWorkUnit extends AbstractAuditWorkUnit implements AuditWorkUnit {
private final Map data;
private final boolean changes;
private final EntityPersister entityPersister;
private final Object[] oldState;
private final Object[] newState;
public ModWorkUnit(
SessionImplementor sessionImplementor, String entityName, AuditConfiguration verCfg,
Serializable id, EntityPersister entityPersister, Object[] newState, Object[] oldState) {
super( sessionImplementor, entityName, verCfg, id, RevisionType.MOD );
this.entityPersister = entityPersister;
this.oldState = oldState;
this.newState = newState;
data = new HashMap();
changes = verCfg.getEntCfg().get( getEntityName() ).getPropertyMapper().map(
sessionImplementor, data,
entityPersister.getPropertyNames(), newState, oldState
);
}
public Map getData() {
return data;
}
@Override
public boolean containsWork() {
return changes;
}
@Override
public Map generateData(Object revisionData) {
fillDataWithId( data, revisionData );
return data;
}
@Override
public AuditWorkUnit merge(AddWorkUnit second) {
return this;
}
@Override
public AuditWorkUnit merge(ModWorkUnit second) {
// In case of multiple subsequent flushes within single transaction, modification flags need to be
// recalculated against initial and final state of the given entity.
return new ModWorkUnit(
second.sessionImplementor, second.getEntityName(), second.verCfg, second.id,
second.entityPersister, second.newState, this.oldState
);
}
@Override
public AuditWorkUnit merge(DelWorkUnit second) {
return second;
}
@Override
public AuditWorkUnit merge(CollectionChangeWorkUnit second) {
second.mergeCollectionModifiedData( data );
return this;
}
@Override
public AuditWorkUnit merge(FakeBidirectionalRelationWorkUnit second) {
return FakeBidirectionalRelationWorkUnit.merge( second, this, second.getNestedWorkUnit() );
}
@Override
public AuditWorkUnit dispatch(WorkUnitMergeVisitor first) {
return first.merge( this );
}
}