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Java > Open Source Codes > org > snmp4j > agent > agentx > event > PingListener


1 /*_############################################################################
2   _##
3   _## SNMP4J-AgentX - PingListener.java
4   _##
5   _## Copyright (C) 2005-2007 Frank Fock (SNMP4J.org)
6   _##
7   _## This program is free software; you can redistribute it and/or modify
8   _## it under the terms of the GNU General Public License version 2 as
9   _## published by the Free Software Foundation.
10   _##
11   _## This program 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
14   _## GNU General Public License for more details.
15   _##
16   _## You should have received a copy of the GNU General Public License
17   _## along with this program; if not, write to the Free Software
18   _## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
19   _## MA 02110-1301 USA
20   _##
21   _##########################################################################*/
22
23 package org.snmp4j.agent.agentx.event;
24
25 import java.util.EventListener JavaDoc;
26
27 /**
28  * A <code>PingListener</code> is interested in receiving PingEvent objects
29  * to control the ability of an AgentX peer (session) of processing requests.
30  *
31  * @author Frank Fock
32  * @version 1.0
33  */
34 public interface PingListener extends EventListener JavaDoc {
35
36   /**
37    * A AgentX ping PDU has been sent and probably a corresponding response
38    * received.
39    * @param event
40    * the PingEvent generated. Depending on the ping history and local
41    * constraints a listener may set the closeSession and resetSession
42    * attributes to indicate that the session is no longer functional
43    * and should be closed or resetted.
44    */
45   void pinged(PingEvent event);
46
47 }
48
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