001/**
002 *   GRANITE DATA SERVICES
003 *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 *   This file is part of the Granite Data Services Platform.
006 *
007 *   Granite Data Services is free software; you can redistribute it and/or
008 *   modify it under the terms of the GNU Lesser General Public
009 *   License as published by the Free Software Foundation; either
010 *   version 2.1 of the License, or (at your option) any later version.
011 *
012 *   Granite Data Services is distributed in the hope that it will be useful,
013 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 *   General Public License for more details.
016 *
017 *   You should have received a copy of the GNU Lesser General Public
018 *   License along with this library; if not, write to the Free Software
019 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 *   USA, or see <http://www.gnu.org/licenses/>.
021 */
022package org.granite.tide.data;
023
024import javax.persistence.EntityTransaction;
025
026
027/**
028 * Responsible for attaching a entity with the entity mangager
029 * @author cingram
030 *
031 */
032public class JPATransactionManager extends JPALocalTransactionManager {
033        
034        private JTATransactionManager jtaTm = new JTATransactionManager();
035        
036        
037        @Override
038        public Object begin(TideTransactionPersistenceManager pm) {
039                Object tx = null;
040                try {
041                        tx = super.begin(pm);
042                }
043                catch (IllegalStateException e) {
044                        tx = jtaTm.begin(pm);                   
045                }
046                return tx;
047        }
048        
049        @Override
050        public void commit(Object tx) throws Exception {
051                if (tx instanceof EntityTransaction)
052                        super.commit(tx);
053                else
054                        jtaTm.commit(tx);
055        }
056        
057        @Override
058        public void rollback(Object tx) {
059                if (tx instanceof EntityTransaction)
060                        super.rollback(tx);
061                else
062                        jtaTm.rollback(tx);
063        }
064}