1 /*******************************************************************************
2 * Imixs Workflow
3 * Copyright (C) 2001, 2011 Imixs Software Solutions GmbH,
4 * http://www.imixs.com
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You can receive a copy of the GNU General Public
17 * License at http://www.gnu.org/licenses/gpl.html
18 *
19 * Project:
20 * http://www.imixs.org
21 * http://java.net/projects/imixs-workflow
22 *
23 * Contributors:
24 * Imixs Software Solutions GmbH - initial API and implementation
25 * Ralph Soika - Software Developer
26 *******************************************************************************/
27
28 package org.imixs.workflow.jee.faces;
29
30 import java.text.Collator;
31 import java.util.Comparator;
32 import java.util.Locale;
33
34 import javax.faces.model.SelectItem;
35
36 /**
37 * Sorts a ArrayList of SelectItems by label
38 * @author rsoika
39 *
40 */
41 public class SelectItemComparator implements Comparator<SelectItem> {
42 private final Collator collator;
43
44 private final boolean ascending;
45
46 public SelectItemComparator(Locale locale, boolean ascending) {
47 this.collator = Collator.getInstance(locale);
48 this.ascending = ascending;
49 }
50
51 public int compare(SelectItem a, SelectItem b) {
52 int result = this.collator.compare(a.getLabel(), b.getLabel());
53 if (!this.ascending) {
54 result = -result;
55 }
56 return result;
57 }
58
59 }