01: /*
02: *
03: * JMoney - A Personal Finance Manager
04: * Copyright (c) 2004 Nigel Westbury <westbury@users.sourceforge.net>
05: *
06: *
07: * This program is free software; you can redistribute it and/or modify
08: * it under the terms of the GNU General Public License as published by
09: * the Free Software Foundation; either version 2 of the License, or
10: * (at your option) any later version.
11: *
12: * This program 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
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public License
18: * along with this program; if not, write to the Free Software
19: * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20: *
21: */
22:
23: package net.sf.jmoney.model2;
24:
25: import java.util.EventListener;
26:
27: /**
28: * Listener interface for changes to a session.
29: * <P>
30: * An event is fired for every object added, every object
31: * deleted, and every change made to the scalar properties
32: * of an object.
33: * <P>
34: * For each change, only one of the methods below will be
35: * called. The <code>sessionChanged</code> method is for use
36: * in all situations where none of the other three methods
37: * apply. There are currently no known situations where none
38: * of the other three methods apply so the <code>sessionChanged</code>
39: * method may need to be removed.
40: *
41: * @author Nigel Westbury
42: */
43: public interface SessionChangeFirerListener extends EventListener {
44: /**
45: * A change or some sort or another has occurred in the session.
46: */
47: void sessionChanged(ISessionChangeFirer firer);
48: }
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