1 /* QName.java - An XML qualified name.
2 Copyright (C) 2004,2005,2006 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 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.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package javax.xml.namespace;
41 import gnu.java.lang.CPStringBuilder;
43 import java.io.Serializable;
45 import javax.xml.XMLConstants;
49 * <a href='http://www.w3.org/TR/REC-xml-names/#ns-qualnames'>qualified name</a>.
51 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
54 public class QName implements Serializable
56 private static final long serialVersionUID = 4418622981026545151L;
58 private final String namespaceURI;
59 private final String localPart;
60 private final String prefix;
61 private transient String qName;
62 transient int hashCode = -1;
64 public QName(String namespaceURI, String localPart)
66 this(namespaceURI, localPart, null);
69 public QName(String namespaceURI, String localPart, String prefix)
71 if (namespaceURI == null)
72 namespaceURI = XMLConstants.NULL_NS_URI;
73 if (localPart == null)
74 throw new IllegalArgumentException();
76 prefix = XMLConstants.DEFAULT_NS_PREFIX;
79 if (XMLConstants.XML_NS_PREFIX.equals(prefix))
80 namespaceURI = XMLConstants.XML_NS_URI;
81 else if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix))
82 namespaceURI = XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
84 this.namespaceURI = namespaceURI;
85 this.localPart = localPart;
89 public QName(String localPart)
91 this(null, localPart, null);
94 public String getNamespaceURI()
99 public String getLocalPart()
104 public String getPrefix()
109 public final boolean equals(Object obj)
111 if (obj instanceof QName)
113 QName qname = (QName) obj;
114 return qname.getLocalPart().equals(localPart) &&
115 qname.getNamespaceURI().equals(namespaceURI);
120 public final int hashCode()
123 hashCode = localPart.hashCode() ^ namespaceURI.hashCode();
127 public synchronized String toString()
131 CPStringBuilder buf = new CPStringBuilder();
132 if (namespaceURI.length() > 0)
135 buf.append(namespaceURI);
138 if (prefix.length() > 0)
143 buf.append(localPart);
144 qName = buf.toString();
149 public static QName valueOf(String qNameAsString)
151 if (qNameAsString == null)
152 throw new IllegalArgumentException("qNameAsString can't be null");
154 String namespaceUri = "", prefix = null;
155 int start = qNameAsString.indexOf('{');
156 int end = qNameAsString.indexOf('}');
160 throw new IllegalArgumentException(qNameAsString);
161 namespaceUri = qNameAsString.substring(start + 1, end);
162 qNameAsString = qNameAsString.substring(end + 1);
164 start = qNameAsString.indexOf(':');
167 prefix = qNameAsString.substring(0, start);
168 qNameAsString = qNameAsString.substring(start + 1);
170 return new QName(namespaceUri, qNameAsString, prefix);