docs: @Override
    public MtasDataItemNumberComparator<Long> getCompareValue1() {
      switch (sortType) {
      case CodecUtil.STATS_TYPE_SUM:
        return new MtasDataItemNumberComparator<Long>(valueSum, sortDirection);
      case CodecUtil.STATS_TYPE_MAX:
        return new MtasDataItemNumberComparator<Long>(valueMax, sortDirection);
      case CodecUtil.STATS_TYPE_MIN:
        return new MtasDataItemNumberComparator<Long>(valueMin, sortDirection);
      case CodecUtil.STATS_TYPE_SUMSQ:
        return new MtasDataItemNumberComparator<Long>(valueSumOfSquares,
            sortDirection);
      default:
        return null;
      }
    }