/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.jxpath.ri.model.dom;
import org.apache.commons.jxpath.ri.Compiler;
import org.apache.commons.jxpath.ri.QName;
import org.apache.commons.jxpath.ri.compiler.NodeTest;
import org.apache.commons.jxpath.ri.compiler.NodeTypeTest;
import org.apache.commons.jxpath.ri.model.NodePointer;
/**
* Represents a namespace node.
*
* @author Dmitri Plotnikov
* @version $Revision: 652884 $ $Date: 2008-05-02 15:02:00 -0500 (Fri, 02 May 2008) $
*/
public class NamespacePointer extends NodePointer {
private String prefix;
private String namespaceURI;
private static final long serialVersionUID = -7622456151550131709L;
/**
* Create a new NamespacePointer.
* @param parent parent pointer
* @param prefix associated ns prefix.
*/
public NamespacePointer(NodePointer parent, String prefix) {
super(parent);
this.prefix = prefix;
}
/**
* Create a new NamespacePointer.
* @param parent parent pointer
* @param prefix associated ns prefix.
* @param namespaceURI associated ns URI.
*/
public NamespacePointer(
NodePointer parent,
String prefix,
String namespaceURI) {
super(parent);
this.prefix = prefix;
this.namespaceURI = namespaceURI;
}
public QName getName() {
return new QName(prefix);
}
public Object getBaseValue() {
return null;
}
public boolean isCollection() {
return false;
}
public int getLength() {
return 1;
}
public Object getImmediateNode() {
return getNamespaceURI();
}
public String getNamespaceURI() {
if (namespaceURI == null) {
namespaceURI = parent.getNamespaceURI(prefix);
}
return namespaceURI;
}
public boolean isLeaf() {
return true;
}
/**
* Throws UnsupportedOperationException.
* @param value Object
*/
public void setValue(Object value) {
throw new UnsupportedOperationException("Cannot modify DOM trees");
}
public boolean testNode(NodeTest nodeTest) {
return nodeTest == null
|| ((nodeTest instanceof NodeTypeTest)
&& ((NodeTypeTest) nodeTest).getNodeType()
== Compiler.NODE_TYPE_NODE);
}
public String asPath() {
StringBuffer buffer = new StringBuffer();
if (parent != null) {
buffer.append(parent.asPath());
if (buffer.length() == 0
|| buffer.charAt(buffer.length() - 1) != '/') {
buffer.append('/');
}
}
buffer.append("namespace::");
buffer.append(prefix);
return buffer.toString();
}
public int hashCode() {
return prefix.hashCode();
}
public boolean equals(Object object) {
if (object == this) {
return true;
}
if (!(object instanceof NamespacePointer)) {
return false;
}
NamespacePointer other = (NamespacePointer) object;
return prefix.equals(other.prefix);
}
public int compareChildNodePointers(
NodePointer pointer1,
NodePointer pointer2) {
// Won't happen - namespaces don't have children
return 0;
}
}
|