org.hibernate.event.internal.DefaultUpdateEventListener Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, 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.event.internal;
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.ObjectDeletedException;
import org.hibernate.engine.spi.EntityEntry;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.engine.spi.Status;
import org.hibernate.event.spi.SaveOrUpdateEvent;
import org.hibernate.persister.entity.EntityPersister;
/**
* An event handler for update() events
* @author Gavin King
*/
public class DefaultUpdateEventListener extends DefaultSaveOrUpdateEventListener {
protected Serializable performSaveOrUpdate(SaveOrUpdateEvent event) {
// this implementation is supposed to tolerate incorrect unsaved-value
// mappings, for the purpose of backward-compatibility
EntityEntry entry = event.getSession().getPersistenceContext().getEntry( event.getEntity() );
if ( entry!=null ) {
if ( entry.getStatus()== Status.DELETED ) {
throw new ObjectDeletedException( "deleted instance passed to update()", null, event.getEntityName() );
}
else {
return entityIsPersistent(event);
}
}
else {
entityIsDetached(event);
return null;
}
}
/**
* If the user specified an id, assign it to the instance and use that,
* otherwise use the id already assigned to the instance
*/
protected Serializable getUpdateId(
Object entity,
EntityPersister persister,
Serializable requestedId,
SessionImplementor session) throws HibernateException {
if ( requestedId == null ) {
return super.getUpdateId( entity, persister, requestedId, session );
}
else {
persister.setIdentifier( entity, requestedId, session );
return requestedId;
}
}
}