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 java.io.Serializable;
43 import javax.xml.XMLConstants;
47 * <a href='http://www.w3.org/TR/REC-xml-names/#ns-qualnames'>qualified name</a>.
49 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
52 public class QName implements Serializable
54 private static final long serialVersionUID = 4418622981026545151L;
56 private final String namespaceURI;
57 private final String localPart;
58 private final String prefix;
59 private transient String qName;
60 transient int hashCode = -1;
62 public QName(String namespaceURI, String localPart)
64 this(namespaceURI, localPart, null);
67 public QName(String namespaceURI, String localPart, String prefix)
69 if (namespaceURI == null)
70 namespaceURI = XMLConstants.NULL_NS_URI;
71 if (localPart == null)
72 throw new IllegalArgumentException();
74 prefix = XMLConstants.DEFAULT_NS_PREFIX;
77 if (XMLConstants.XML_NS_PREFIX.equals(prefix))
78 namespaceURI = XMLConstants.XML_NS_URI;
79 else if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix))
80 namespaceURI = XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
82 this.namespaceURI = namespaceURI;
83 this.localPart = localPart;
87 public QName(String localPart)
89 this(null, localPart, null);
92 public String getNamespaceURI()
97 public String getLocalPart()
102 public String getPrefix()
107 public final boolean equals(Object obj)
109 if (obj instanceof QName)
111 QName qname = (QName) obj;
112 return qname.getLocalPart().equals(localPart) &&
113 qname.getNamespaceURI().equals(namespaceURI);
118 public final int hashCode()
121 hashCode = localPart.hashCode() ^ namespaceURI.hashCode();
125 public synchronized String toString()
129 StringBuffer buf = new StringBuffer();
130 if (namespaceURI.length() > 0)
133 buf.append(namespaceURI);
136 if (prefix.length() > 0)
141 buf.append(localPart);
142 qName = buf.toString();
147 public static QName valueOf(String qNameAsString)
149 if (qNameAsString == null)
150 throw new IllegalArgumentException("qNameAsString can't be null");
152 String namespaceUri = "", prefix = null;
153 int start = qNameAsString.indexOf('{');
154 int end = qNameAsString.indexOf('}');
158 throw new IllegalArgumentException(qNameAsString);
159 namespaceUri = qNameAsString.substring(start + 1, end);
160 qNameAsString = qNameAsString.substring(end + 1);
162 start = qNameAsString.indexOf(':');
165 prefix = qNameAsString.substring(0, start);
166 qNameAsString = qNameAsString.substring(start + 1);
168 return new QName(namespaceUri, qNameAsString, prefix);