public static Unit getUnit(String key) {
    /* TTL for now, we can add more as we need */
    switch (key) {
      case TTL:
        return Unit.TIME_INTERVAL;
      case BLOCKSIZE:
        return Unit.BYTE;
      default:
        return Unit.NONE;
    }
  }
Default compress tags along with any type of DataBlockEncoding.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ColumnFamilyDescriptorBuilder.java