Source Code : DOM level 2 Events

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DOM level 2 Events

      

import org.apache.xerces.parsers.DOMParser;
import org.xml.sax.SAXException;
import org.w3c.dom.*;
import org.apache.xerces.dom.*;
import java.io.IOException;
import org.w3c.dom.events.*;
import org.apache.xerces.dom.events.*;

class MainClass{
  public static void main(String args[]) throws SAXException, IOException {
    new DemoEventsModule();
  }

}

public class DemoEventsModule implements EventListener {


  public DemoEventsModule() throws SAXException, IOException {
    DOMParser parser = new DOMParser();

    parser.setFeature("http://apache.org/xml/features/dom/defer-node-expansion",false);
    parser.parse("games.xml");

    Document doc = parser.getDocument();

    Node node = doc.getDocumentElement().getFirstChild();
    Node clone = node.cloneNode(true);

    ((DocumentImpl) doc).addEventListener("DOMNodeRemoved", this, false);
    EventTarget evTarget = (EventTarget) doc;
    evTarget.addEventListener("DOMNodeInserted", this, false);

    doc.getDocumentElement().removeChild(node);
    doc.getDocumentElement().appendChild(clone);
  }

  public void handleEvent(Event ev) {
    if (ev.getType().equals(MutationEventImpl.DOM_NODE_REMOVED)) {
      Node node = (Node) ev.getTarget();
      Node parentNode = node.getParentNode();
      System.out.println("Node " + node.getNodeName()+ " was removed from " + parentNode.getNodeName());
    }
    if (ev.getType().equals(MutationEventImpl.DOM_NODE_INSERTED)) {
      Node node = (Node) ev.getTarget();
      Node parentNode = node.getParentNode();
      System.out.println("Node " + node.getNodeName()+ " was inserted as a child of "+ parentNode.getNodeName());
    }
  }
}

//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>


*/

           
         
    
    
    
    
    
  

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