code: public static ColumnFamilyDescriptor buildColumnFamilyDescriptor(ColumnFamilyOptions cfOptions,
              String cfName) {
          return cfOptions != null
                  ? new ColumnFamilyDescriptor(cfName.getBytes(StandardCharsets.UTF_8), cfOptions)
                  : new ColumnFamilyDescriptor(cfName.getBytes(StandardCharsets.UTF_8));
      }
docs: Builds a {@link ColumnFamilyDescriptor}, specifying options.
  
  @param cfOptions
  @param cfName
  @return