public static PairOfSameType<RegionInfo> getDaughterRegions(Result data) {
    RegionInfo splitA = CatalogFamilyFormat.getRegionInfo(data, HConstants.SPLITA_QUALIFIER);
    RegionInfo splitB = CatalogFamilyFormat.getRegionInfo(data, HConstants.SPLITB_QUALIFIER);
    return new PairOfSameType<>(splitA, splitB);
  }
Returns the daughter regions by reading the corresponding columns of the catalog table Result.
@param data a Result object from the catalog table scan
@return pair of RegionInfo or PairOfSameType(null, null) if region is not a split parent
hbase-server/src/main/java/org/apache/hadoop/hbase/MetaTableAccessor.java