DemoTreeWalker.java Source code

Introduction

Here is the source code for DemoTreeWalker.java

Source

/*
  Java, XML, and Web Services Bible
  Mike Jasnowski
  ISBN: 0-7645-4847-6
*/
import org.apache.xerces.parsers.DOMParser;
import org.xml.sax.SAXException;
import org.w3c.dom.traversal.DocumentTraversal;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import java.io.IOException;
import org.w3c.dom.traversal.NodeFilter;
import org.w3c.dom.traversal.TreeWalker;

public class DemoTreeWalker {

    public static void main(String args[]) throws SAXException, IOException {

        DOMParser parser = new DOMParser();
        parser.parse("games.xml");

        Document doc = parser.getDocument();

        DocumentTraversal docTraversal = (DocumentTraversal) doc;

        TreeWalker iter = docTraversal.createTreeWalker(doc.getDocumentElement(), NodeFilter.SHOW_ALL, null, false);
        Node n = null;
        while ((n = iter.nextNode()) != null) {
            System.out.println("Node name: " + n.getNodeName());
            System.out.println("Node value: " + n.getNodeValue());
        }

    }
}
//game.xml
/*
<?xml version="1.0"?>
<games>
<game genre="shooter">XML Invaders</game>
<game genre="rpg">A Node in the XPath</game>
<game genre="action">XPath Racers</game>
</games>
*/