/*
* $Header: /home/cvs/jakarta-commons/jxpath/src/java/org/apache/commons/jxpath/ri/model/jdom/JDOMAttributePointer.java,v 1.6 2003/03/11 00:59:33 dmitri Exp $
* $Revision: 1.6 $
* $Date: 2003/03/11 00:59:33 $
*
* ====================================================================
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Plotnix, Inc,
* <http://www.plotnix.com/>.
* For more information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.jxpath.ri.model.jdom;
import org.apache.commons.jxpath.ri.QName;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.apache.commons.jxpath.util.TypeUtils;
import org.jdom.Attribute;
/**
* A Pointer that points to a DOM node.
*
* @author Dmitri Plotnikov
* @version $Revision: 1.6 $ $Date: 2003/03/11 00:59:33 $
*/
public class JDOMAttributePointer extends NodePointer {
private Attribute attr;
public JDOMAttributePointer(NodePointer parent, Attribute attr) {
super(parent);
this.attr = attr;
}
public QName getName() {
return new QName(
JDOMNodePointer.getPrefix(attr),
JDOMNodePointer.getLocalName(attr));
}
public QName getExpandedName() {
return new QName(getNamespaceURI(), attr.getName());
}
public String getNamespaceURI() {
String uri = attr.getNamespaceURI();
if (uri != null && uri.equals("")) {
uri = null;
}
return uri;
}
public Object getBaseValue() {
return attr;
}
public boolean isCollection() {
return false;
}
public int getLength() {
return 1;
}
public Object getImmediateNode() {
String value = attr.getValue();
if (value == null) {
return null;
}
return value;
}
public boolean isActual() {
return true;
}
public boolean isLeaf() {
return true;
}
/**
* Sets the value of this attribute.
*/
public void setValue(Object value) {
attr.setValue((String) TypeUtils.convert(value, String.class));
}
public void remove() {
attr.getParent().removeAttribute(attr);
}
/**
*/
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('@');
buffer.append(getName());
return buffer.toString();
}
public int hashCode() {
return System.identityHashCode(attr);
}
public boolean equals(Object object) {
if (object == this) {
return true;
}
if (!(object instanceof JDOMAttributePointer)) {
return false;
}
JDOMAttributePointer other = (JDOMAttributePointer) object;
return attr == other.attr;
}
public int compareChildNodePointers(
NodePointer pointer1,
NodePointer pointer2)
{
// Won't happen - attributes don't have children
return 0;
}
}