TransitionCondition


1   /*
2    * $Id: TransitionCondition.java 5462 2005-08-05 18:35:48Z jonesde $
3    *
4    * Copyright (c) 2003 The Open For Business Project - www.ofbiz.org
5    *
6    * Permission is hereby granted, free of charge, to any person obtaining a
7    * copy of this software and associated documentation files (the "Software"),
8    * to deal in the Software without restriction, including without limitation
9    * 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    $Rev: 5462 $
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, String   expression, DispatchContext dctx) throws EvaluationException;
50  
51  }
52
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