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Java > Open Source Codes > org > objectweb > easybeans > examples > messagedrivenbean > MessageDrivenBean


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: MessageDrivenBean.java 673 2006-06-18 18:15:25Z benoitf $
23  * --------------------------------------------------------------------------
24  */
25
26 package org.objectweb.easybeans.examples.messagedrivenbean;
27
28 import javax.ejb.ActivationConfigProperty JavaDoc;
29 import javax.ejb.MessageDriven JavaDoc;
30 import javax.jms.JMSException JavaDoc;
31 import javax.jms.Message JavaDoc;
32 import javax.jms.MessageListener JavaDoc;
33 import javax.jms.TextMessage JavaDoc;
34
35 /**
36  * Example of Message Driven Bean.<br />
37  * This is an JMS MDB, implementing the MessageListener interface.
38  * @author Florent Benoit
39  */
40 @MessageDriven JavaDoc(activationConfig = {
41         @ActivationConfigProperty JavaDoc(propertyName = "destination", propertyValue = "SampleQueue"),
42         @ActivationConfigProperty JavaDoc(propertyName = "destinationType", propertyValue = "javax.jms.Queue")
43         }
44 )
45 public class MessageDrivenBean implements MessageListener JavaDoc {
46
47     /**
48      * Passes a message to the listener.
49      * @param message - the message passed to the listener
50      */
51     public void onMessage(final Message JavaDoc message) {
52         String JavaDoc txt = "Receiving a message named '" + message + "'.";
53         // Should be instance of text message
54 if (message instanceof TextMessage JavaDoc) {
55             try {
56                 txt += " with the content '" + ((TextMessage JavaDoc) message).getText();
57             } catch (JMSException JavaDoc e) {
58                 System.err.println("Error while getting the content of the message");
59                 e.printStackTrace();
60             }
61         }
62         System.out.println(txt);
63     }
64
65 }
66
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