01: /*
02: * $Id: TransitionCondition.java,v 1.1 2003/08/17 09:29:33 ajzeneski Exp $
03: *
04: * Copyright (c) 2003 The Open For Business Project - www.ofbiz.org
05: *
06: * Permission is hereby granted, free of charge, to any person obtaining a
07: * copy of this software and associated documentation files (the "Software"),
08: * to deal in the Software without restriction, including without limitation
09: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10: * and/or sell copies of the Software, and to permit persons to whom the
11: * Software is furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included
14: * in all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17: * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19: * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
20: * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
21: * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
22: * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23: *
24: */
25: package org.ofbiz.workflow;
26:
27: import java.util.Map;
28:
29: import org.ofbiz.service.DispatchContext;
30:
31: /**
32: * TransitionCondition - Interface for implementing transition conditions
33: *
34: * @author <a href="mailto:jaz@ofbiz.org">Andy Zeneski</a>
35: * @version $Revision: 1.1 $
36: * @since 2.1
37: */
38: public interface TransitionCondition {
39:
40: /**
41: * Evaluate a condition and return the result as a Boolean
42: * @param context Map of environment info (processContext) for use in evaluation
43: * @param attrs Map of transition's extended attributes
44: * @param expression The expression from the transition condition
45: * @param dctx The DispatchContext to be used in processing the condition
46: * @return The result of the evaluation
47: * @throws EvaluationException
48: */
49: public Boolean evaluateCondition(Map context, Map attrs,
50: String expression, DispatchContext dctx)
51: throws EvaluationException;
52:
53: }
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