1 /*
2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/QualifiedName.java,v 1.9 2005/09/25 11:39:21 elharo Exp $
3 * $Revision: 1.9 $
4 * $Date: 2005/09/25 11:39:21 $
5 *
6 * ====================================================================
7 *
8 * Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer.
17 *
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions, and the disclaimer that follows
20 * these conditions in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * 3. The name "Jaxen" must not be used to endorse or promote products
24 * derived from this software without prior written permission. For
25 * written permission, please contact license@jaxen.org.
26 *
27 * 4. Products derived from this software may not be called "Jaxen", nor
28 * may "Jaxen" appear in their name, without prior written permission
29 * from the Jaxen Project Management (pm@jaxen.org).
30 *
31 * In addition, we request (but do not require) that you include in the
32 * end-user documentation provided with the redistribution and/or in the
33 * software itself an acknowledgement equivalent to the following:
34 * "This product includes software developed by the
35 * Jaxen Project <http://www.jaxen.org/>."
36 * Alternatively, the acknowledgment may be graphical using the logos
37 * available at http://www.jaxen.org/
38 *
39 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42 * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * ====================================================================
53 * This software consists of voluntary contributions made by many
54 * individuals on behalf of the Jaxen Project and was originally
55 * created by bob mcwhirter <bob@werken.com> and
56 * James Strachan <jstrachan@apache.org>. For more information on the
57 * Jaxen Project, please see <http://www.jaxen.org/>.
58 *
59 * $Id: QualifiedName.java,v 1.9 2005/09/25 11:39:21 elharo Exp $
60 */
61
62 package org.jaxen;
63
64 /*** A local name (that matches the XML NCName production) and a namespace URI
65 * with which the local name is qualified.
66 *
67 * @author Erwin Bolwidt ( ejb @ klomp.org )
68 */
69 class QualifiedName
70 {
71 private String namespaceURI;
72 private String localName;
73 private String prefix;
74
75 /*** Constructs a QualifiedName object.
76 *
77 * @param namespaceURI namespace URI that qualifies the name, or
78 * <code>null</code> for default namespace
79 * @param localName local name that is qualified by the namespace uri;
80 * must not be <code>null</code>
81 */
82 QualifiedName( String namespaceURI, String prefix, String localName )
83 {
84 if (namespaceURI == null) namespaceURI = "";
85 if (prefix == null) prefix = "";
86 this.namespaceURI = namespaceURI;
87 this.localName = localName;
88 }
89
90 public int hashCode()
91 {
92 return ( localName.hashCode() ^ namespaceURI.hashCode() );
93 }
94
95 public boolean equals( Object o )
96 {
97 // Because this class is package protected and used in only
98 // two other classes, it's never actually compared to anything
99 // other than another QualifiedName. No instanceof test is
100 // necessary here.
101 QualifiedName other = (QualifiedName) o;
102 return ( namespaceURI.equals(other.namespaceURI) &&
103 other.localName.equals(localName) );
104 }
105
106 /***
107 * @return James Clark's namespace form
108 */
109 String getClarkForm() {
110 if ("".equals(namespaceURI)) return localName;
111 else if ("".equals(prefix)) return "{" + namespaceURI + "}" + localName;
112 else return "{" + namespaceURI + "}" + prefix + ":" + localName;
113 }
114
115 }
116