/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/metaobj/trunk/metaobj-api/api/src/java/org/sakaiproject/metaobj/shared/IdGenerator.java $
* $Id: IdGenerator.java 105079 2012-02-24 23:08:11Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2004, 2005, 2006, 2008 The Sakai Foundation
*
* Licensed under the Educational Community License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.opensource.org/licenses/ECL-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************************/
package org.sakaiproject.metaobj.shared;
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.id.IdentifierGenerator;
import org.sakaiproject.component.cover.ComponentManager;
import org.sakaiproject.metaobj.shared.mgt.IdManager;
/**
* creates unique identifiers for hibernate
*/
public class IdGenerator implements IdentifierGenerator {
private static IdManager idManager;
public IdGenerator() {
}
public Serializable generate(SessionImplementor arg0, Object arg1)
throws HibernateException {
return getIdManager().createId();
}
protected IdManager getIdManager() {
if (idManager == null) {
idManager = (IdManager) ComponentManager.getInstance().get("idManager");
}
return idManager;
}
}