01: /* uDig - User Friendly Desktop Internet GIS client
02: * http://udig.refractions.net
03: * (C) 2004, Refractions Research Inc.
04: *
05: * This library is free software; you can redistribute it and/or
06: * modify it under the terms of the GNU Lesser General Public
07: * License as published by the Free Software Foundation;
08: * version 2.1 of the License.
09: *
10: * This library 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 GNU
13: * Lesser General Public License for more details.
14: */
15: package net.refractions.udig.ui.operations;
16:
17: /**
18: * A listener that is notified when the value of the OpFilter may have changed.
19: *
20: * @author Jesse
21: * @since 1.1.0
22: */
23: public interface IOpFilterListener {
24:
25: /**
26: * Notifies that a listener has changed.
27: * @param changed the object that has changed and whose cache must be emptied.
28: */
29: void notifyChange(Object changed);
30:
31: }
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