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Commons JXPath example source code file (

This example Commons JXPath source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons JXPath tags/keywords

abstractfactory, abstractfactory, element, element, jxpathcontext, list, object, object, pointer, string, string, testjdomfactory, util

The Commons JXPath source code

 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.jxpath.ri.model.jdom;

import java.util.List;

import org.apache.commons.jxpath.AbstractFactory;
import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.Pointer;
import org.jdom.Element;

 * Test AbstractFactory.
 * @author Dmitri Plotnikov
 * @version $Revision: 480417 $ $Date: 2006-11-28 23:37:40 -0600 (Tue, 28 Nov 2006) $
public class TestJDOMFactory extends AbstractFactory {

     * Create a new instance and put it in the collection on the parent object.
     * Return <b>false if this factory cannot create the requested object.
    public boolean createObject(
        JXPathContext context,
        Pointer pointer,
        Object parent,
        String name,
        int index) 
        if (name.equals("location")
            || name.equals("address")
            || name.equals("street")) {
            addJDOMElement((Element) parent, index, name, null);
            return true;
        if (name.startsWith("price:")) {
            String namespaceURI = context.getNamespaceURI("price");
            addJDOMElement((Element) parent, index, name, namespaceURI);
            return true;

        return false;

    private void addJDOMElement(Element parent, int index, String tag, String namespaceURI) {
        List children = parent.getContent();
        int count = 0;
        for (int i = 0; i < children.size(); i++) {
            Object child = children.get(i);
            if (child instanceof Element
                && ((Element) child).getQualifiedName().equals(tag)) {

        // Keep inserting new elements until we have index + 1 of them
        while (count <= index) {
            // In a real factory we would need to do the right thing with
            // the namespace prefix.
            Element newElement;
            if (namespaceURI != null) {
                String prefix = tag.substring(0, tag.indexOf(':'));
                tag = tag.substring(tag.indexOf(':') + 1);
                newElement = new Element(tag, prefix, namespaceURI);
            else {
                newElement = new Element(tag);

    public boolean declareVariable(JXPathContext context, String name) {
        return false;

Other Commons JXPath examples (source code examples)

Here is a short list of links related to this Commons JXPath source code file:

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