01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * 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: 57209 $
35: */
36: public class TransactionInterceptor extends Interceptor {
37: /** Serial Version Identifier. @since 1.4.2.1 */
38: private static final long serialVersionUID = 371972342995600888L;
39:
40: public static TransactionManager tm;
41:
42: /**
43: * No-argument constructor for externalization.
44: */
45: public TransactionInterceptor() {
46: }
47:
48: // Public --------------------------------------------------------
49:
50: public Object invoke(Invocation invocation) throws Throwable {
51: if (tm != null) {
52: Transaction tx = tm.getTransaction();
53: if (tx != null)
54: invocation.setTransaction(tx);
55: }
56: return getNext().invoke(invocation);
57: }
58:
59: /** Transaction manager. */
60: public static void setTransactionManager(TransactionManager tmx) {
61: tm = tmx;
62: }
63: }
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