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Java > Open Source Codes > org > mr > core > net > AgentStateListener


1 /*
2  * Copyright 2002 by
3  * <a HREF="http://www.coridan.com">Coridan</a>
4  * <a HREF="mailto: support@coridan.com ">support@coridan.com</a>
5  *
6  * The contents of this file are subject to the Mozilla Public License Version
7  * 1.1 (the "License"); you may not use this file except in compliance with the
8  * License. You may obtain a copy of the License at
9  * http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is "MantaRay" (TM).
17  *
18  * The Initial Developer of the Original Code is Uri Schneider.
19  * Portions created by the Initial Developer are Copyright (C) 2006
20  * Coridan Inc. All Rights Reserved.
21  *
22  * Contributor(s): all the names of the contributors are added in the source
23  * code where applicable.
24  *
25  * Alternatively, the contents of this file may be used under the terms of the
26  * LGPL license (the "GNU LESSER GENERAL PUBLIC LICENSE"), in which case the
27  * provisions of LGPL are applicable instead of those above. If you wish to
28  * allow use of your version of this file only under the terms of the LGPL
29  * License and not to allow others to use your version of this file under
30  * the MPL, indicate your decision by deleting the provisions above and
31  * replace them with the notice and other provisions required by the LGPL.
32  * If you do not delete the provisions above, a recipient may use your version
33  * of this file under either the MPL or the GNU LESSER GENERAL PUBLIC LICENSE.
34  
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Lesser General Public License as published by the Free Software Foundation;
39  * either version 2.1 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
43  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
44  * License for more details.
45  */
46 package org.mr.core.net;
47 /**
48  * Implement this interface to receive updates about the state of
49  * remote MantaRay agents.
50  *
51  * Created: Sun May 30 18:14:48 2004
52  *
53  * @see AgentMonitorManager
54  * @author Uri Schneider
55  * @version 1.0
56  */
57 public interface AgentStateListener {
58     /**
59      * An agent is down: all of its transports are down, even though we tried to
60      * connect.
61      */
62     public final static int AGENT_STATE_DOWN = 0;
63     
64     /**
65      * An agent doesn't have a monitor associated with it, or a monitor exists,
66      * but the agent does not have any transports yet.
67      */
68     public final static int AGENT_STATE_NOT_MONITORING = 1;
69     
70     /**
71      * An agent is up: at least one of its transports is up.
72      */
73     public final static int AGENT_STATE_UP = 2;
74     
75     /**
76      * An agent is being monitored, but all of its transports are in an
77      * 'unknown' state, i.e. a connect operation is still pending.
78      */
79     public final static int AGENT_STATE_UNKNOWN = 3;
80     
81     /**
82      * A remote agent's state has changed.
83      *
84      * @param agent The remote agent's name.
85      * @param state The remote agent's new state.
86      */
87     public void agentStateChanged(String JavaDoc agent, int state);
88 }// AgentStateListener
89
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