1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.shardingsphere.infra.database.core.metadata.database.enums;
19
20 /**
21 * Nulls order type.
22 */
23 public enum NullsOrderType {
24
25 /**
26 * Nulls first.
27 */
28 FIRST,
29
30 /**
31 * Nulls last.
32 */
33 LAST;
34
35 /**
36 * Get reversed order type.
37 *
38 * @return reversed order type
39 */
40 public NullsOrderType getReversedOrderType() {
41 return this == FIRST ? LAST : FIRST;
42 }
43 }