001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.tide.data;
022    
023    import javax.persistence.EntityTransaction;
024    
025    import org.granite.tide.TideTransactionManager;
026    
027    
028    /**
029     * Responsible for attaching a entity with the entity mangager
030     * @author cingram
031     *
032     */
033    public class JPALocalTransactionManager implements TideTransactionManager {
034            
035            public Object begin(TideTransactionPersistenceManager pm) {
036                    if (pm != null)
037                            return pm.getCurrentTransaction();
038                    return null;
039            }
040            
041            public void commit(Object tx) throws Exception {
042            ((EntityTransaction)tx).commit();
043            }
044            
045            public void rollback(Object tx) {
046            ((EntityTransaction)tx).rollback();
047            }
048    }