1 /*
2 * $Header$
3 * $Revision$
4 * $Date$
5 *
6 * ====================================================================
7 *
8 * Copyright 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 are
13 * met:
14 *
15 * * Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 *
18 * * Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * * Neither the name of the Jaxen Project nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 *
38 * ====================================================================
39 * This software consists of voluntary contributions made by many
40 * individuals on behalf of the Jaxen Project and was originally
41 * created by bob mcwhirter <bob@werken.com> and
42 * James Strachan <jstrachan@apache.org>. For more information on the
43 * Jaxen Project, please see <http://www.jaxen.org/>.
44 *
45 * $Id$
46 */
47
48 package org.jaxen;
49
50 import java.io.Serializable;
51
52 /** A local name (that matches the XML NCName production) and a namespace URI
53 * with which the local name is qualified.
54 *
55 * @author Erwin Bolwidt ( ejb@klomp.org )
56 */
57 class QualifiedName implements Serializable
58 {
59
60 private static final long serialVersionUID = 2734958615642751535L;
61
62 private String namespaceURI;
63 private String localName;
64
65 /** Constructs a QualifiedName object.
66 *
67 * @param namespaceURI namespace URI that qualifies the name, or
68 * <code>null</code> for default namespace
69 * @param localName local name that is qualified by the namespace uri;
70 * must not be <code>null</code>
71 */
72 QualifiedName( String namespaceURI, String localName )
73 {
74 if (namespaceURI == null) namespaceURI = "";
75 this.namespaceURI = namespaceURI;
76 this.localName = localName;
77 }
78
79 @Override
80 public int hashCode()
81 {
82 return ( localName.hashCode() ^ namespaceURI.hashCode() );
83 }
84
85 @Override
86 public boolean equals( Object o )
87 {
88 // Because this class is package protected and used in only
89 // two other classes, it's never actually compared to anything
90 // other than another QualifiedName. No instanceof test is
91 // necessary here.
92 QualifiedName other = (QualifiedName) o;
93 return ( namespaceURI.equals(other.namespaceURI) &&
94 other.localName.equals(localName) );
95 }
96
97 /**
98 * @return James Clark's namespace form
99 */
100 String getClarkForm() {
101 if ("".equals(namespaceURI)) return localName;
102 else return "{" + namespaceURI + "}" + ":" + localName;
103 }
104
105 }
106