PersistentQueue


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.mq.server;
23  
24  import javax.jms.JMSException  ;
25  
26  import org.jboss.mq.SpyDestination;
27  import org.jboss.mq.SpyJMSException;
28  import org.jboss.mq.pm.Tx;
29  
30  /**
31   *  This class implements a persistent version of the basic queue.
32   *
33   * @author     David Maplesden (David.Maplesden@orion.co.nz)
34   * @created    August 16, 2001
35   */
36  
37  public class PersistentQueue extends org.jboss.mq.server.BasicQueue
38  {
39     SpyDestination destination;
40  
41     public PersistentQueue(JMSDestinationManager server, SpyDestination destination, BasicQueueParameters parameters) throws JMSException  
42     {
43        super(server, destination.toString(), parameters);
44        this.destination = destination;
45     }
46  
47     public SpyDestination getSpyDestination()
48     {
49        return destination;
50     }
51  
52     public void addMessage(MessageReference mesRef, Tx txId) throws JMSException  
53     {
54        if (mesRef.isPersistent())
55        {
56           try
57           {
58              server.getPersistenceManager().add(mesRef, txId);
59           }
60           catch (Throwable   t)
61           {
62              String   error = "Error storing message: " + mesRef;
63              log.debug(error, t);
64              try
65              {
66                 server.getMessageCache().remove(mesRef);
67              }
68              catch (Throwable   ignored)
69              {
70                 log.trace("Ignored error while removing from cache.", ignored);
71              }
72              SpyJMSException.rethrowAsJMSException(error, t);
73           }
74        }
75  
76        super.addMessage(mesRef, txId);
77     }
78  }
79
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags