class RDBStore implements DBStore {

  @Override
  public void compactDB() throws IOException {
    if (db != null) {
      try {
        db.compactRange();
      } catch (RocksDBException e) {
        throw toIOException("Failed to compact db", e);
      }
    }
  }

  @VisibleForTesting public  RDBStore(File dbFile, DBOptions options,
                  Set<TableConfig> families);
  public  RDBStore(File dbFile, DBOptions options,
      WriteOptions writeOptions, Set<TableConfig> families,
                  CodecRegistry registry);

}