@Override public synchronized void disconnectionNotification(String eventName,Object source){
  if (eventName.compareTo("dataSet") == 0) {
    if (m_dataProvider == source) {
      m_dataProvider=null;
    }
  }
  m_connectedFormat=null;
}

@ Override public synchronized void disconnectionNotification ( String eventName , Object source ) { if ( eventName . compareTo ( "dataSet" ) == 0 ) { if ( m_dataProvider == source ) { m_dataProvider = null ; } } m_connectedFormat = null ; }
notify this object that it has been deregistered as a listener with a source with respect to the supplied event name
