@Override
    public int hashCode() {
      int result = Bytes.hashCode(name);
      result ^= (int) COLUMN_DESCRIPTOR_VERSION;
      result ^= values.hashCode();
      result ^= configuration.hashCode();
      return result;
    }
Set the setPrefetchBlocksOnOpen flag
@param value true if we should prefetch blocks into the blockcache on open
@return this (for chained invocation)
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ColumnFamilyDescriptorBuilder.java