@org.apache.thrift.annotation.Nullable
  public java.lang.Object getFieldValue(_Fields field) {
    switch (field) {
    case OPERATION_HANDLE:
      return getOperationHandle();

    case ORIENTATION:
      return getOrientation();

    case MAX_ROWS:
      return getMaxRows();

    case FETCH_TYPE:
      return getFetchType();

    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field fetchType is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TFetchResultsReq.java