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Java > Open Source Codes > com > caucho > jms > amq > AmqQueueConsumer


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.jms.amq;
31
32 import com.caucho.jms.message.MessageImpl;
33 import com.caucho.jms.session.SessionImpl;
34 import com.caucho.util.L10N;
35
36 import javax.jms.JMSException JavaDoc;
37 import javax.jms.Queue JavaDoc;
38 import javax.jms.QueueReceiver JavaDoc;
39 import java.util.logging.Level JavaDoc;
40 import java.util.logging.Logger JavaDoc;
41
42 /**
43  * Represents a JDBC queue consumer.
44  */
45 public class AmqQueueConsumer extends AmqMessageConsumer
46   implements QueueReceiver JavaDoc
47 {
48   private static final Logger JavaDoc log
49     = Logger.getLogger(AmqQueueConsumer.class.getName());
50   private static final L10N L = new L10N(AmqQueueConsumer.class);
51   
52   private AmqQueue _queue;
53
54   public AmqQueueConsumer(SessionImpl session, String JavaDoc messageSelector,
55               AmqQueue queue)
56     throws JMSException JavaDoc
57   {
58     super(session, messageSelector, queue, false);
59     
60     _queue = queue;
61
62     if (log.isLoggable(Level.FINE))
63       log.fine("AmqQueueConsumer[" + queue + "] created");
64   }
65
66   /**
67    * Returns the queue.
68    */
69   public Queue JavaDoc getQueue()
70   {
71     return _queue;
72   }
73
74   /**
75    * Receives a message from the queue.
76    */
77   protected MessageImpl receiveImpl()
78     throws JMSException JavaDoc
79   {
80     return null;
81   }
82
83   /**
84    * Acknowledges all received messages from the session.
85    */
86   public void acknowledge()
87     throws JMSException JavaDoc
88   {
89   }
90
91   /**
92    * Rollback all received messages from the session.
93    */
94   public void rollback()
95     throws JMSException JavaDoc
96   {
97   }
98
99   /**
100    * Closes the consumer.
101    */
102   public void close()
103     throws JMSException JavaDoc
104   {
105   }
106
107   /**
108    * Returns a printable view of the queue.
109    */
110   public String JavaDoc toString()
111   {
112     return "AmqQueueConsumer[" + _queue + "]";
113   }
114 }
115
116
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