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1   /**
2    * Copyright 2005-2014 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.function;
17  
18  import org.kuali.rice.core.api.mo.common.Identifiable;
19  import org.kuali.rice.core.api.mo.common.Versioned;
20  
21  /**
22   * Defines the contract for a function parameter definition.  A function
23   * parameter definition helps to define the "signature" of a
24   * {@link FunctionDefinitionContract} by defining the name and type of an
25   * expected parameter to the function.
26   * 
27   * @author Kuali Rice Team (rice.collab@kuali.org)
28   *
29   */
30  public interface FunctionParameterDefinitionContract extends Versioned, Identifiable {
31  
32  	/**
33  	 * Returns the name of this parameters.  All parameters have a name and this
34  	 * value can never be null or blank.  The parameter name must be unique
35  	 * within a given function definition.
36  	 * 
37  	 * @return the name of this function parameter definition
38  	 */
39  	String getName();
40  	
41  	/**
42  	 * Returns the description of this parameter.  The description is intended
43  	 * to provide more information about a parameter and it's appropriate
44  	 * usage.  The description is optional and will be null if a
45  	 * description is not defined.
46  	 * 
47  	 * @return the description of this function parameter definition, or null
48  	 * if this parameter has no description
49  	 */
50  	String getDescription();
51  	
52  	/**
53  	 * Returns the type of this function parameter.  This can be one of a set
54  	 * of "built-in" data types or a custom data type represented as a fully
55  	 * qualified java class name.  All parameters must have a valid type so
56  	 * this method should never return null or blank.
57  	 * 
58  	 * @return the type of this function parameter definition
59  	 */
60  	String getParameterType();
61  	
62  	/**
63  	 * Returns the ID of the function to which this parameter is associated.
64  	 * 
65  	 * @return the ID of the corresponding function
66  	 */
67  	String getFunctionId();
68  
69  	/**
70  	 * This is the sequence number of the function parameter.
71  	 * The sequence number identifies the position of the 
72  	 * parameter in the function list.
73  	 * 
74  	 * @return the sequence number of the function parameter
75  	 */
76  	public Integer getSequenceNumber();
77  }