TopicSubscriber


1   /*
2    * JORAM: Java(TM) Open Reliable Asynchronous Messaging
3    * Copyright (C) 2001 - ScalAgent Distributed Technologies
4    * Copyright (C) 1996 - Dyade
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   * Initial developer(s): Frederic Maistre (INRIA)
22   * Contributor(s):
23   */
24  package org.objectweb.joram.client.jms;
25  
26  import javax.jms.IllegalStateException  ;
27  import javax.jms.JMSException  ;
28  
29  
30  /**
31   * Implements the <code>javax.jms.TopicSubscriber</code> interface.
32   */
33  public class TopicSubscriber extends MessageConsumer
34                               implements javax.jms.TopicSubscriber  
35  {
36    /**
37     * Constructs a subscriber.
38     *
39     * @param sess  The session the subscriber belongs to.
40     * @param topic  The topic the subscriber subscribes to.
41     * @param name  The subscription name, for durable subs only.
42     * @param selector  The selector for filtering messages.
43     * @param noLocal <code>true</code> if the subscriber does not wish to
44     *          consume messages published through the same connection.
45     *
46     * @exception IllegalStateException  If the connection is broken.
47     * @exception JMSException  If the creation fails for any other reason.
48     */
49    TopicSubscriber(Session sess, Destination topic, String   name, String   selector,
50                    boolean noLocal) throws JMSException   {
51      super(sess, topic, selector, name, noLocal);
52    }
53  
54     /** Returns a string view of this receiver. */
55    public String   toString()
56    {
57      return "TopicSub:" + targetName;
58    }
59  
60  
61    /** 
62     * API method.
63     *
64     * @exception IllegalStateException  If the subscriber is closed.
65     */
66    public boolean getNoLocal() throws JMSException  
67    {
68      checkClosed();
69      return noLocal;
70    }
71  
72    /** 
73     * API method.
74     *
75     * @exception IllegalStateException  If the subscriber is closed.
76     */
77    public javax.jms.Topic   getTopic() throws JMSException  
78    {
79      checkClosed();
80      return (javax.jms.Topic  ) dest;
81    }
82  }
83
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