| 1 | // Copyright 2004-2007 Jean-Francois Poilpret |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package net.sourceforge.hivetranse.transaction.hibernate3; |
| 16 | |
| 17 | import org.apache.commons.logging.Log; |
| 18 | |
| 19 | import net.sourceforge.hivetranse.transaction.AbstractTransactionService; |
| 20 | import net.sourceforge.hiveutils.collections.Stack; |
| 21 | import net.sourceforge.hiveutils.collections.impl.StackImpl; |
| 22 | |
| 23 | /** |
| 24 | * Service managing Hibernate sessions & transactions, without JTA. |
| 25 | * This service works hand-in-hand with <code>SessionProxyFactory</code>. |
| 26 | * <p> |
| 27 | * The service supports more than one <code>SessionFactory</code> with the |
| 28 | * limitation that partial commit or rollback may occur across different |
| 29 | * databases, because JTA is not used. |
| 30 | * <p> |
| 31 | * If you want correct management of several databases, then better try using |
| 32 | * <code>JtaTransactionService</code>. |
| 33 | * <p> |
| 34 | * <b>ServiceModel must be threaded</b> |
| 35 | * |
| 36 | * @author Jean-Francois Poilpret |
| 37 | */ |
| 38 | public class HibernateTransactionService extends AbstractTransactionService |
| 39 | { |
| 40 | public HibernateTransactionService( Log logger, |
| 41 | boolean wrapRuntimeExceptions, |
| 42 | boolean deferSessionClose, |
| 43 | boolean reuseLastSession) |
| 44 | { |
| 45 | super(logger, wrapRuntimeExceptions); |
| 46 | _deferSessionClose = deferSessionClose; |
| 47 | if (_deferSessionClose) |
| 48 | { |
| 49 | _sessionsRepositories = new StackImpl<SessionsRepository>(); |
| 50 | } |
| 51 | else |
| 52 | { |
| 53 | _sessionsRepositories = null; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | protected Object createTransaction() throws Exception |
| 58 | { |
| 59 | return new SessionsRepositoryImpl(); |
| 60 | } |
| 61 | |
| 62 | protected void endTransaction(Object tx, boolean commit) |
| 63 | throws Exception |
| 64 | { |
| 65 | SessionsRepository repo = (SessionsRepository) tx; |
| 66 | if (_deferSessionClose) |
| 67 | { |
| 68 | _sessionsRepositories.push(repo); |
| 69 | } |
| 70 | repo.endAllSessions(!_deferSessionClose, commit); |
| 71 | } |
| 72 | |
| 73 | protected void cleanUp() |
| 74 | { |
| 75 | super.cleanUp(); |
| 76 | if (_deferSessionClose) |
| 77 | { |
| 78 | while (!_sessionsRepositories.isEmpty()) |
| 79 | { |
| 80 | SessionsRepository repo = _sessionsRepositories.pop(); |
| 81 | //#### should we commit instead? |
| 82 | repo.endAllSessions(true, false); |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | private final boolean _deferSessionClose; |
| 88 | private final Stack<SessionsRepository> _sessionsRepositories; |
| 89 | } |