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
021package org.granite.tide.spring;
022
023import org.granite.tide.TideTransactionManager;
024import org.granite.tide.data.TideTransactionPersistenceManager;
025import org.springframework.transaction.PlatformTransactionManager;
026import org.springframework.transaction.TransactionDefinition;
027import org.springframework.transaction.TransactionStatus;
028import org.springframework.transaction.support.DefaultTransactionDefinition;
029
030/**
031 * Responsible for attaching a session with the persistence mangager
032 * @author cingram
033 *
034 */
035public class SpringTransactionManager implements TideTransactionManager {
036        
037        private PlatformTransactionManager transactionManager;
038        
039        private static final TransactionDefinition TX_DEF = new DefaultTransactionDefinition(TransactionDefinition.PROPAGATION_REQUIRED);
040        static {
041                ((DefaultTransactionDefinition)TX_DEF).setReadOnly(true);
042        }
043        
044        
045        public SpringTransactionManager(PlatformTransactionManager transactionManager) {
046                this.transactionManager = transactionManager;
047        }
048        
049        public Object begin(TideTransactionPersistenceManager pm) {
050                return transactionManager.getTransaction(TX_DEF);
051        }
052
053        public void commit(Object tx) throws Exception {
054                transactionManager.commit(((TransactionStatus)tx));
055        }
056
057        public void rollback(Object tx) {
058                transactionManager.rollback(((TransactionStatus)tx));
059        }
060}