1 // $Id:NameComparator.java 62 2008-04-20 12:28:56Z me $
2 /*
3 * xsAnalyzer - XML schema analyzing tool. Copyright (C) 2008 Michael Engelhardt
4 *
5 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
6 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
7 * version.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
10 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
13 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
14 */
15 /**
16 *
17 */
18 package de.mindcrimeilab.xsanalyzer.util;
19
20 import java.util.Comparator;
21
22 import org.apache.xerces.xs.XSObject;
23
24 /**
25 * @author Michael Engelhardt<me@mindcrime-ilab.de>
26 * @author $Author:me $
27 * @version $Revision:62 $
28 *
29 */
30 public class NameComparator implements Comparator<XSObject> {
31
32 /*
33 * (non-Javadoc)
34 *
35 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
36 */
37 @Override
38 public int compare(XSObject o1, XSObject o2) {
39 int ret = 0;
40 if (null != o1) {
41 if (null != o2) {
42 final String name1 = o1.getName();
43 final String name2 = o2.getName();
44 if (null == name1 && null != name2) {
45 ret = -1;
46 }
47 else if (null != name1 && null == name2) {
48 ret = 1;
49 }
50 else if (null == name1 && null == name2) {
51 ret = 0;
52 }
53 else {
54 ret = (null == name1) ? -1 : name1.compareTo(name2);
55 }
56 }
57 else {
58 ret = -1;
59 }
60 }
61 else {
62 if (o2 != null) {
63 ret = 1;
64 }
65 else {
66 ret = 0;
67 }
68 }
69 return ret;
70 }
71 }