code: public static IntComparator getComparator(Table table, Sort key) {
          Iterator<Map.Entry<String, Sort.Order>> entries = key.iterator();
          Map.Entry<String, Sort.Order> sort = entries.next();
          Column<?> column = table.column(sort.getKey());
          return SortUtils.rowComparator(column, sort.getValue());
      }
docs: Returns a comparator that can be used to sort the records in this table according to the given sort key