public void removeAll(){
  if (mRecords.size() >= 0) {
    mRecords.clear();
    mCurrentPosition=-1;
    notifyObservers();
  }
}

public void removeAll ( ) { if ( mRecords . size ( ) >= 0 ) { mRecords . clear ( ) ; mCurrentPosition = - 1 ; notifyObservers ( ) ; } }
clear the internal cursor data .
