/**
* GRANITE DATA SERVICES
* Copyright (C) 2006-2015 GRANITE DATA SERVICES S.A.S.
*
* This file is part of the Granite Data Services Platform.
*
* Granite Data Services is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Granite Data Services 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA, or see <http://www.gnu.org/licenses/>.
*/
package org.granite.tide.seam.lazy;
import java.io.Serializable;
import org.hibernate.Query;
import org.hibernate.Session;
import org.jboss.seam.Component;
import org.jboss.seam.Entity;
/**
* Manager responsible for looking up the Hibernate Session for the
* passed in SessionManagerName
* @author CIngram
*/
public class SeamHibernateManager extends HibernateContextManager {
private String sessionManagerName = null;
private Session session = null;
public SeamHibernateManager(String sessionManagerName) {
this.sessionManagerName = sessionManagerName;
}
/**
* Attach the passed in entity with the HibernateManager stored
* in Seam.
* @param entity
* @return the attached hibernate object
*/
@Override
public Object fetchEntity(Object entity, String[] fetch) {
Serializable id = (Serializable)Entity.forClass(entity.getClass()).getIdentifier(entity);
if (id == null)
return null;
this.session = (Session)Component.getInstance(sessionManagerName);
if (fetch == null)
return session.get(entity.getClass(), id);
for (String f : fetch) {
Query q = session.createQuery("select e from " + entity.getClass().getName() + " e left join fetch e." + f + " where e = :entity");
q.setParameter("entity", entity);
entity = q.uniqueResult();
}
return entity;
}
/**
* Disconnects from the current hibernate session.
*/
@Override
protected void disconnectSession() {
session.disconnect();
}
}