1 /*
2 * XNap - A P2P framework and client.
3 *
4 * See the file AUTHORS for copyright information.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 package org.xnap.event;
21
22 import java.util.EventListener;
23
24 /***
25 * The interface for receiving state change events.
26 */
27 public interface StateListener extends EventListener {
28
29 //--- Method(s) ---
30
31 /***
32 * Invoked when the object has changed.
33 * Usually if the object is represented on screen
34 * the gui needs to be updated.
35 */
36 void stateChanged(StateEvent event);
37
38 }