1 // ConnectionListener.java -
2 // $Id: ConnectionListener.java,v 1.3 2006/02/20 04:52:11 sjardine Exp $
3 //
4 // Copyright 1999, 2000 Joe Phillips <jaiger@innovationsw.com>
5 // Copyright 2001, 2002 Innovation Software Group, LLC - http://www.innovationsw.com
6 //
7 // This library is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU Library General Public
9 // License as published by the Free Software Foundation; either
10 // version 2 of the License, or (at your option) any later version.
11 //
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // Library General Public License for more details.
16 //
17 // You should have received a copy of the GNU Library General Public
18 // License along with this library; if not, write to the Free
19 // Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 //
21 package gnu.inet.ftp;
22
23 import java.util.EventListener;
24
25 /***
26 *
27 */
28 public abstract interface ConnectionListener extends EventListener {
29
30 /***
31 * called when a connection has been opened
32 *
33 * @param event
34 * data for the connection open event
35 */
36 public abstract void connectionOpened(ConnectionEvent event);
37
38 /***
39 * called when a connection has been closed
40 *
41 * @param event
42 * data for the connection close event
43 */
44 public abstract void connectionClosed(ConnectionEvent event);
45
46 /***
47 * called when an error occurs while setting up the connection
48 *
49 * @param exception
50 * the exception that was thrown
51 */
52 public abstract void connectionFailed(Exception exception);
53
54 }