Lets applications examine element nodes as they are being constructed during a parse.
As each element is examined, it may be modified or removed, or parsing may be aborted.
Java Binding:
package org.w3c.dom.loadSave;
public interface DOMBuilderFilter {
  public boolean startElement(Element element);
  public boolean endElement(Element element);
}
IDL:
  interface DOMBuilderFilter {
    boolean startElement(in Element element);
    boolean endElement(in Element element);
  };