01: /*
02: * JacORB - a free Java ORB
03: *
04: * Copyright (C) The JacORB project, 1997-2006.
05: *
06: * This library is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Library General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) 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: * Library General Public License for more details.
15: *
16: * You should have received a copy of the GNU Library General Public
17: * License along with this library; if not, write to the Free
18: * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19: */
20:
21: package org.jacorb.orb.listener;
22:
23: import java.util.EventListener;
24:
25: /**
26: * The <code>TCPConnectionListener</code> interface defines methods for a
27: * developer to implement in order to receive notifications of socket
28: * events from JacORB.
29: *
30: * @author Nick Cross
31: * @version $Id: TCPConnectionListener.java,v 1.3 2006/07/27 09:07:59 alphonse.bendt Exp $
32: */
33: public interface TCPConnectionListener extends EventListener {
34: /**
35: * Check whether this Listener is enabled.
36: * This function is intended to lessen the computational
37: * cost of disabled listeners.
38: *
39: * @return true, if the listener is ready to receive notifications
40: * of socket events.
41: */
42: boolean isListenerEnabled();
43:
44: /**
45: * <code>connectionOpened</code> will be called whenever a socket
46: * is opened.
47: *
48: * @param e a <code>TCPConenctionEvent</code> value
49: */
50: void connectionOpened(TCPConnectionEvent e);
51:
52: /**
53: * <code>connectionClosed</code> will be called whenever a socket
54: * is closed.
55: *
56: * @param e a <code>TCPConenctionEvent</code> value
57: */
58: void connectionClosed(TCPConnectionEvent e);
59: }
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