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Java > Open Source Codes > org > objectweb > easybeans > deployment > annotations > helper > bean > mdb > MDBListenerBusinessMethodResolver


1 /**
2  * EasyBeans
3  * Copyright (C) 2006 Bull S.A.S.
4  * Contact: easybeans@objectweb.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA
20  *
21  * --------------------------------------------------------------------------
22  * $Id: MDBListenerBusinessMethodResolver.java 854 2006-07-12 12:57:45Z benoitf $
23  * --------------------------------------------------------------------------
24  */
25
26 package org.objectweb.easybeans.deployment.annotations.helper.bean.mdb;
27
28 import static org.objectweb.asm.Opcodes.ACC_PUBLIC;
29
30 import org.objectweb.easybeans.deployment.annotations.JMethod;
31 import org.objectweb.easybeans.deployment.annotations.metadata.ClassAnnotationMetadata;
32 import org.objectweb.easybeans.deployment.annotations.metadata.MethodAnnotationMetadata;
33
34 /**
35  * This class finds the listener method of the MDB and mark it as a business
36  * method so that it will be intercepted.
37  * @author Florent Benoit
38  */
39 public final class MDBListenerBusinessMethodResolver {
40
41     /**
42      * onMessage method.
43      */
44     private static final JMethod ONMESSAGE_METHOD = new JMethod(ACC_PUBLIC, "onMessage", "(Ljavax/jms/Message;)V", null, null);
45
46     /**
47      * Helper class, no public constructor.
48      */
49     private MDBListenerBusinessMethodResolver() {
50     }
51
52     /**
53      * Mark listener method of the interface as business method.
54      * @param sessionBean Session bean to analyze
55      */
56     public static void resolve(final ClassAnnotationMetadata sessionBean) {
57         //TODO: use of another interface than JMS
58
59         // Set business method for onMessage Method (JMS)
60 MethodAnnotationMetadata onMessageMethod = sessionBean.getMethodAnnotationMetadata(ONMESSAGE_METHOD);
61         if (onMessageMethod != null) {
62             onMessageMethod.setBusinessMethod(true);
63         }
64
65     }
66 }
67
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