public boolean isHighlightEnabled(){
  for (int i=0, size=mDataSets.size(); i < size; i++) {
    T set=mDataSets.get(i);
    if (!set.isHighlightEnabled()) {
      return false;
    }
  }
  return true;
}

public boolean isHighlightEnabled ( ) { for ( int i = 0 , size = mDataSets . size ( ) ; i < size ; i ++ ) { T set = mDataSets . get ( i ) ; if ( ! set . isHighlightEnabled ( ) ) { return false ; } } return true ; }
returns true if highlighting of all underlying values is enabled , false if not .
