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Java > Open Source Codes > org > jboss > aspects > tx > ClientTxPropagationInterceptor


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.aspects.tx;
23
24 import org.jboss.aop.advice.Interceptor;
25 import org.jboss.aop.joinpoint.Invocation;
26 import org.jboss.tm.TransactionPropagationContextFactory;
27 import org.jboss.tm.TransactionPropagationContextUtil;
28
29 import java.io.ObjectStreamException JavaDoc;
30
31 /**
32  * Comment
33  *
34  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
35  * @version $Revision: 37406 $
36  */

37 public class ClientTxPropagationInterceptor implements Interceptor, java.io.Serializable JavaDoc
38 {
39    private static final long serialVersionUID = 4536126296306191076L;
40
41    public static String JavaDoc TRANSACTION_PROPAGATION_CONTEXT = "TransactionPropagationContext";
42
43    public static final ClientTxPropagationInterceptor singleton = new ClientTxPropagationInterceptor();
44
45    public String JavaDoc getName()
46    {
47       return "ClientTxPropagationInterceptor";
48    }
49
50    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
51    {
52       TransactionPropagationContextFactory tpcFactory = TransactionPropagationContextUtil.getTPCFactoryClientSide();
53       if (tpcFactory != null)
54       {
55          Object JavaDoc tpc = tpcFactory.getTransactionPropagationContext();
56          if (tpc != null)
57          {
58             invocation.getMetaData().addMetaData(TRANSACTION_PROPAGATION_CONTEXT, TRANSACTION_PROPAGATION_CONTEXT, tpc);
59          }
60       }
61       return invocation.invokeNext();
62    }
63
64    Object JavaDoc readResolve() throws ObjectStreamException JavaDoc {
65       return singleton;
66    }
67 }
68
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