/*
* 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.entities.mapper.relation.lazy;
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.envers.configuration.AuditConfiguration;
import org.hibernate.envers.entities.EntitiesConfigurations;
import org.hibernate.envers.reader.AuditReaderImplementor;
/**
* @author Adam Warski (adam at warski dot org)
* @author Tomasz Bech
* @author Hern�n Chanfreau
*/
public class ToOneDelegateSessionImplementor extends AbstractDelegateSessionImplementor {
private static final long serialVersionUID = 4770438372940785488L;
private final AuditReaderImplementor versionsReader;
private final Class<?> entityClass;
private final Object entityId;
private final Number revision;
private EntitiesConfigurations entCfg;
public ToOneDelegateSessionImplementor(AuditReaderImplementor versionsReader,
Class<?> entityClass, Object entityId, Number revision,
AuditConfiguration verCfg) {
super(versionsReader.getSessionImplementor());
this.versionsReader = versionsReader;
this.entityClass = entityClass;
this.entityId = entityId;
this.revision = revision;
this.entCfg = verCfg.getEntCfg();
}
public Object doImmediateLoad(String entityName) throws HibernateException {
if(entCfg.getNotVersionEntityConfiguration(entityName) == null){
// audited relation, look up entity with envers
return versionsReader.find(entityClass, entityName, entityId, revision);
} else {
// notAudited relation, look up entity with hibernate
return delegate.immediateLoad(entityName, (Serializable) entityId);
}
}
}