AbstractReply


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.mom.notifications;
25  
26  /**
27   * An <code>AbstractReply</code> is a reply sent by a destination agent to
28   * a client agent.
29   */
30  public abstract class AbstractReply extends AbstractNotification
31  {
32    /**
33     * The <code>correlationId</code> field is equal to the request's
34     * identifier.
35     */
36    private int correlationId = -1;
37  
38  
39    /**
40     * Constructs an <code>AbstractReply</code>.
41     *
42     * @param clientContext  Client context identifier.
43     * @param correlationId  Identifier of the reply.
44     */
45    public AbstractReply(int clientContext, int correlationId)
46    {
47      super(clientContext);
48      this.correlationId = correlationId;
49    }
50  
51    /**
52     * Constructs an <code>AbstractReply</code>.
53     */
54    public AbstractReply()
55    {}
56  
57  
58    /** Returns the reply identifier. */
59    public int getCorrelationId()
60    {
61      return correlationId;
62    }
63  
64    /**
65     * Appends a string image for this object to the StringBuffer parameter.
66     *
67     * @param output
68     *    buffer to fill in
69     * @return
70      <code>output</code> buffer is returned
71     */
72    public StringBuffer   toString(StringBuffer   output) {
73      output.append('(');
74      super.toString(output);
75      output.append(", correlationId=").append(correlationId);
76      output.append(')');
77  
78      return output;
79    }
80  }
81
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