code: public String getProperty(String cfName, String name) throws RocksDbException {
          ColumnFamilyHandle cfh = getColumnFamilyHandle(cfName);
          if (cfh == null) {
              throw new RocksDbException.ColumnFamilyNotExists(cfName);
          }
          try {
              return rocksDb.getProperty(cfh, name);
          } catch (Exception e) {
              throw e instanceof RocksDbException ? (RocksDbException) e : new RocksDbException(e);
          }
      }
docs: See {@link RocksDB#getProperty(ColumnFamilyHandle, String)}.
  
  @param cfName
  @param name
  @return
  @throws RocksDbException