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;
16:
17: /**
18: * Condition to wait for to become true;
19: *
20: * @author Jesse
21: * @since 1.1.0
22: */
23: public interface WaitCondition {
24: public static final WaitCondition FALSE_CONDITION = new WaitCondition() {
25:
26: public boolean isTrue() {
27: return false;
28: }
29:
30: };
31: public static final WaitCondition TRUE_CONDITION = new WaitCondition() {
32:
33: public boolean isTrue() {
34: return true;
35: }
36:
37: };
38:
39: /**
40: * @return true if condition is meth
41: * @throws Exception
42: */
43: public boolean isTrue();
44: }
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