1 /**
2 * Copyright 2005-2016 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 /**
19 * Sorting orders used for collection definitions and lookup generation.
20 *
21 * @author Kuali Rice Team (rice.collab@kuali.org)
22 */
23 public enum SortDirection {
24 ASCENDING,
25 DESCENDING,
26 // These latter are Oracle options on table sorting. However, recent ANSI
27 // standards have extended them as requiring to be understood by all databases.
28 // (Though not all support the style of sorting.)
29 ASCENDING_NULLS_FIRST,
30 ASCENDING_NULLS_LAST,
31 DESCENDING_NULLS_FIRST,
32 DESCENDING_NULLS_LAST
33 }