@Override
 public Filter rangeFilter(
     FieldDataCache fieldDataCache,
     String lowerTerm,
     String upperTerm,
     boolean includeLower,
     boolean includeUpper,
     @Nullable QueryParseContext context) {
   return NumericRangeFieldDataFilter.newShortRange(
       fieldDataCache,
       names.indexName(),
       lowerTerm == null ? null : Short.parseShort(lowerTerm),
       upperTerm == null ? null : Short.parseShort(upperTerm),
       includeLower,
       includeUpper);
 }