1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.proxy;
23
24 import javax.transaction.TransactionManager;
25 import javax.transaction.Transaction;
26
27 import org.jboss.invocation.Invocation;
28 import org.jboss.proxy.Interceptor;
29
30 /**
31 * The client-side proxy for an EJB Home object.
32 *
33 * @author <a href="mailto:marc.fleury@jboss.org">Marc Fleury</a>
34 * @version $Revision: 37459 $
35 */
36 public class TransactionInterceptor
37 extends Interceptor
38 {
39 /** Serial Version Identifier. @since 1.4.2.1 */
40 private static final long serialVersionUID = 371972342995600888L;
41
42 public static TransactionManager tm;
43
44 /**
45 * No-argument constructor for externalization.
46 */
47 public TransactionInterceptor()
48 {
49 }
50
51 // Public --------------------------------------------------------
52
53 public Object invoke(Invocation invocation)
54 throws Throwable
55 {
56 if (tm != null)
57 {
58 Transaction tx = tm.getTransaction();
59 if (tx != null) invocation.setTransaction(tx);
60 }
61 return getNext().invoke(invocation);
62 }
63
64
65 /** Transaction manager. */
66 public static void setTransactionManager(TransactionManager tmx)
67 {
68 tm = tmx;
69 }
70 }
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