1 /* (c) Copyright 2003 Caleigo AB, All rights reserved.
2 *
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 */
18
19 package org.caleigo.toolkit.tunnel;
20
21 /*** Consumes messages that are received by an ITunnel.
22 *
23 * @author Dennis Zikovic
24 * @version 1.00
25 *
26 *//*
27 *
28 * WHEN WHO WHY & WHAT
29 * -----------------------------------------------------------------------------
30 * 2002-02-12 Dennis Zikovic Creation
31 * 2002-06-28 Mattias Hagstrand Redesign
32 */
33 public interface IMessageConsumer
34 {
35 // Constants ---------------------------------------------------------------
36
37 // Methods -----------------------------------------------------------------
38
39 /***
40 * Returns <code>true</code> if this IMessageConsumer accepts the message.
41 * This method is allways called before <code>consumeMessage</code> for any
42 * given message.
43 */
44 public boolean acceptsMessage(Object message);
45
46 /***
47 * Tells the IMessageConsumer to consume a message.
48 */
49 public void consumeMessage(Object message);
50
51 /***
52 * Tells the IMessageConsumer to consume a message and returns a new message
53 * that will be delivered to the sender of the originial message.
54 */
55 public Object answerMessage(Object message);
56
57 // Nested classes ----------------------------------------------------------
58 }
59