public int isApplicable(int colID){
  if (_colList == null)   return -1;
  int idx=Arrays.binarySearch(_colList,colID);
  return (idx >= 0 ? idx : -1);
}

public int isApplicable ( int colID ) { if ( _colList == null ) return - 1 ; int idx = Arrays . binarySearch ( _colList , colID ) ; return ( idx >= 0 ? idx : - 1 ) ; }
indicates if this encoder is applicable for the given column id , i . e . , if it is subject to this transformation .
