1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.syncope.common.lib.search;
20
21 import org.apache.commons.lang3.StringUtils;
22
23 /**
24 * Simple builder for generating {@code orderby} values.
25 */
26 public class OrderByClauseBuilder {
27
28 private final StringBuilder builder = new StringBuilder();
29
30 public OrderByClauseBuilder asc(final String key) {
31 builder.append(key).append(" ASC,");
32 return this;
33 }
34
35 public OrderByClauseBuilder desc(final String key) {
36 builder.append(key).append(" DESC,");
37 return this;
38 }
39
40 public String build() {
41 return builder.length() == 0
42 ? StringUtils.EMPTY
43 : builder.deleteCharAt(builder.length() - 1).toString();
44 }
45 }