MessageAcks


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): Nicolas Tachker (ScalAgent)
23   */
24  package com.scalagent.kjoram;
25  
26  import java.util.Vector  ;
27  import java.util.Enumeration  ;
28  
29  /**
30   * A <code>MessageAcks</code> instance holds the identifiers of messages to
31   * acknowledge on a queue or on a proxy subscription.
32   */
33  class MessageAcks
34  {
35    /** The vector of messages identifiers. */
36    private Vector   ids;
37    /** <code>true</code> if the messages to acknowledge are on a queue. */
38    private boolean queueMode;
39  
40    /**
41     * Constructs a <code>MessageAcks</code> instance.
42     *
43     * @param queueMode  <code>true</code> for queue messages.
44     */
45    MessageAcks(boolean queueMode)
46    {
47      this.queueMode = queueMode;
48      ids = new Vector  ();
49    }
50  
51    /** Adds a message identifier. */
52    void addId(String   id)
53    {
54      ids.addElement(id);
55    }
56  
57    /** Adds a vector of message identifiers. */
58    void addIds(Vector   ids)
59    {
60      for (Enumeration   e = ids.elements(); e.hasMoreElements(); )
61        this.ids.addElement(e.nextElement());
62    }
63  
64    /** Returns the vector of message identifiers. */
65    Vector   getIds()
66    {
67      return ids;
68    }
69  
70    /**
71     * Returns <code>true</code> if the messages to acknowledge are on a queue.
72     */
73    boolean getQueueMode()
74    {
75      return queueMode;
76    }
77  } 
78
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