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1   /**
2    * Copyright 2005-2013 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.krad.data.metadata;
17  
18  import java.io.Serializable;
19  
20  /**
21   * Represents a single field on which to sort a {@link DataObjectCollection} within a {@link DataObjectMetadata}.
22   * 
23   * The collection may hold multiple of these objects to support sorting by multiple fields.
24   */
25  public interface DataObjectCollectionSortAttribute extends Serializable {
26  
27  	/**
28  	 * The attribute name on which to sort the collection.
29  	 */
30  	String getAttributeName();
31  
32  	/**
33  	 * For this attribute, which way should we sort?
34  	 */
35  	SortDirection getSortDirection();
36  
37  }