1 // TransferListener.java -
2 // $Id: TransferListener.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 * This describes the interface used to get transfer status events.
27 */
28 public interface TransferListener extends EventListener {
29
30 /***
31 * Indicates the data transfer has begun.
32 */
33 void transferStarted();
34
35 /***
36 * Indicates the data transfer has completed.
37 */
38 void transferCompleted();
39
40 /***
41 * Indicates some data has been transfered.
42 *
43 * @param amount
44 * the amount of data transfered since transferStarted() was
45 * called
46 */
47 void transfered(long amount);
48
49 /***
50 * Indicates some error occurred during transfer.
51 */
52 void transferFailed();
53
54 }