1 /*
2 * ModeShape (http://www.modeshape.org)
3 * See the COPYRIGHT.txt file distributed with this work for information
4 * regarding copyright ownership. Some portions may be licensed
5 * to Red Hat, Inc. under one or more contributor license agreements.
6 * See the AUTHORS.txt file in the distribution for a full listing of
7 * individual contributors.
8 *
9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10 * is licensed to you under the terms of the GNU Lesser General Public License as
11 * published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
13 *
14 * ModeShape is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this software; if not, write to the Free
21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23 */
24 package org.modeshape.graph.property.basic;
25
26 import net.jcip.annotations.Immutable;
27 import org.modeshape.graph.property.NamespaceRegistry;
28 import org.modeshape.graph.property.NamespaceRegistry.Namespace;
29
30 /**
31 * Basic implementation of a {@link NamespaceRegistry} namespace.
32 */
33 @Immutable
34 public class BasicNamespace implements NamespaceRegistry.Namespace {
35 private final String prefix;
36 private final String namespaceUri;
37
38 /**
39 * Create a namespace instance.
40 *
41 * @param prefix the namespace prefix; may not be null (this is not checked)
42 * @param namespaceUri the namespace URI; may not be null (this is not checked)
43 */
44 public BasicNamespace( String prefix,
45 String namespaceUri ) {
46 assert prefix != null;
47 assert namespaceUri != null;
48 this.prefix = prefix;
49 this.namespaceUri = namespaceUri;
50 }
51
52 /**
53 * {@inheritDoc}
54 *
55 * @see org.modeshape.graph.property.NamespaceRegistry.Namespace#getNamespaceUri()
56 */
57 public String getNamespaceUri() {
58 return namespaceUri;
59 }
60
61 /**
62 * {@inheritDoc}
63 *
64 * @see org.modeshape.graph.property.NamespaceRegistry.Namespace#getPrefix()
65 */
66 public String getPrefix() {
67 return prefix;
68 }
69
70 /**
71 * {@inheritDoc}
72 *
73 * @see java.lang.Object#hashCode()
74 */
75 @Override
76 public int hashCode() {
77 return namespaceUri.hashCode();
78 }
79
80 /**
81 * {@inheritDoc}
82 *
83 * @see java.lang.Comparable#compareTo(java.lang.Object)
84 */
85 public int compareTo( Namespace that ) {
86 if (that == null) return 1;
87 if (this == that) return 0;
88 return this.getNamespaceUri().compareTo(that.getNamespaceUri());
89 }
90
91 /**
92 * {@inheritDoc}
93 *
94 * @see java.lang.Object#equals(java.lang.Object)
95 */
96 @Override
97 public boolean equals( Object obj ) {
98 if (obj == this) return true;
99 if (obj instanceof Namespace) {
100 Namespace that = (Namespace)obj;
101 if (!this.namespaceUri.equals(that.getNamespaceUri())) return false;
102 // if (!this.prefix.equals(that.getPrefix())) return false;
103 return true;
104 }
105 return false;
106 }
107
108 /**
109 * {@inheritDoc}
110 *
111 * @see java.lang.Object#toString()
112 */
113 @Override
114 public String toString() {
115 return prefix + "=" + namespaceUri;
116 }
117 }