public int replace(NGCCEventReceiver _old,
    NGCCEventReceiver _new)
Replaces an old handler with a new handler, and returns
ID of the EventReceiver thread.

 public  void sendEnterAttribute(int receiverThreadId,
    String uri,
    String local,
    String qname) throws SAXException

 public  void sendEnterElement(int receiverThreadId,
    String uri,
    String local,
    String qname,
    Attributes atts) throws SAXException
Sends an enter element event to the specified EventReceiver thread.

 public  void sendLeaveAttribute(int receiverThreadId,
    String uri,
    String local,
    String qname) throws SAXException

 public  void sendLeaveElement(int receiverThreadId,
    String uri,
    String local,
    String qname) throws SAXException

 public  void sendText(int receiverThreadId,
    String value) throws SAXException