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1   /**
2    * Copyright 2005-2012 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.krms.api.repository.proposition;
17  
18  
19  import org.kuali.rice.core.api.mo.common.Identifiable;
20  import org.kuali.rice.core.api.mo.common.Versioned;
21  import org.kuali.rice.krms.api.repository.term.TermDefinition;
22  
23  /**
24   * The contract for {@link PropositionParameter}
25   * @author Kuali Rice Team (rice.collab@kuali.org)
26   */
27  public interface PropositionParameterContract extends Identifiable, Versioned {
28  	/**
29  	 * Returns the Id for the parent proposition.
30  	 *
31  	 * <p>
32  	 * It is the Id of the parent proposition.
33  	 * </p>
34  	 * @return Id for parent parameter.
35  	 */
36  	public String getPropId();
37  
38  	
39  	/**
40  	 * Returns the value of the proposition parameter
41  	 *
42  	 * <p>
43  	 * It is the value of the parameter
44  	 * </p>
45  	 * @return value of the parameter
46  	 */
47  	public String getValue();
48  
49          
50  	/**
51  	 * Returns the term value of the proposition parameter if the 
52           * proposition parameter is a term.
53  	 *
54  	 * <p>
55  	 * It is the term value of the parameter
56  	 * </p>
57  	 * @return value of the term parameter
58  	 */
59  	public TermDefinition getTermValue();
60          
61  	/**
62  	 * Returns the type of the parameter.
63  	 * Proposition parameters are one of the following types:
64  	 *    Constant Values:  numbers, strings, dates, etc.
65  	 *    Terms: data available in the execution environment or provided by a term resolver
66  	 *    Functions: custom functions that resolve to a value, 
67  	 *    	or standard operators (equals, greater than, less than, ...)
68  	 *
69  	 * <p>
70  	 * It identified the type of the parameter.
71  	 * </p>
72  	 * @return the parameter type code. Valid values are C, T, and F.
73  	 */
74  	public String getParameterType();
75  
76  	/**
77  	 * Returns the sequence number of the proposition parameter.
78  	 * Proposition parameters are listed in Reverse Polish Notation.
79  	 * The sequence number (starting with 1) identifies the position of the 
80  	 * parameter in the list.
81  	 * 
82  	 * @return the sequence number of the proposition parameter
83  	 */
84  	public Integer getSequenceNumber();
85  }