01: /*
02: * $Id: Condition.java 881 2007-02-12 07:54:31Z hengels $
03: * (c) Copyright 2004 con:cern development team.
04: *
05: * This file is part of con:cern (http://concern.sf.net).
06: *
07: * con:cern is free software; you can redistribute it and/or modify
08: * it under the terms of the GNU Lesser General Public License
09: * as published by the Free Software Foundation; either version 2.1
10: * of the License, or (at your option) any later version.
11: *
12: * Please see COPYING for the complete licence.
13: */
14: package org.concern.controller;
15:
16: /**
17: * The condition evaluates a separatly statable property of the subject. The pre- and postconditions of
18: * activities and exits are boolean expression over a set of those conditions.
19: * @version $Revision: 881 $
20: */
21: public interface Condition<S> extends Node {
22: /**
23: * Called during evaluation of a precondition or postcondition of an activity or notify.
24: * @param subject the subject
25: * @return true if the condition applies, false otherwise
26: */
27: boolean eval(S subject) throws ConditionEvaluationException;
28: }
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