QueueMsgReply


1   /*
2    * JORAM: Java(TM) Open Reliable Asynchronous Messaging
3    * Copyright (C) 2001 - 2006 ScalAgent Distributed Technologies
4    * Copyright (C) 1996 - 2000 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): ScalAgent Distributed Technologies
23   */
24  package org.objectweb.joram.mom.notifications;
25  
26  import org.objectweb.joram.shared.messages.Message;
27  
28  import java.util.*;
29  
30  /**
31   * A <code>QueueMsgReply</code> instance is used by a queue for replying to a
32   * <code>ReceiveRequest</code> by sending a message to a client.
33   */
34  public class QueueMsgReply extends AbstractReply {
35    /** The message sent by the queue. */
36    private Vector messages;
37  
38    /**
39     * Constructs a <code>QueueMsgReply</code> instance.
40     *
41     * @param req  The <code>ReceiveRequest</code> actually replied.
42     * @param message  The message to send.
43     */
44    public QueueMsgReply(ReceiveRequest req) {
45      super(req.getClientContext(), req.getRequestId());
46      messages = new Vector();
47    }
48  
49    /** Returns the message wrapped by this reply. */
50    public Vector getMessages() {
51      return messages;
52    }
53  
54    public int getSize() {
55      return messages.size();
56    }
57  
58    public void addMessage(Message msg) {
59      messages.addElement(msg);
60    }
61  
62    /**
63     * Appends a string image for this object to the StringBuffer parameter.
64     *
65     * @param output
66     *    buffer to fill in
67     * @return
68      <code>output</code> buffer is returned
69     */
70    public StringBuffer   toString(StringBuffer   output) {
71      output.append('(');
72      super.toString(output);
73      output.append(",messages=").append(messages);
74      output.append(')');
75  
76      return output;
77    }
78  } 
79
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