public boolean isSet(_Fields field) {
    if (field == null) {
      throw new java.lang.IllegalArgumentException();
    }

    switch (field) {
    case STATUS:
      return isSetStatus();
    case OPERATION_STATE:
      return isSetOperationState();
    case SQL_STATE:
      return isSetSqlState();
    case ERROR_CODE:
      return isSetErrorCode();
    case ERROR_MESSAGE:
      return isSetErrorMessage();
    case TASK_STATUS:
      return isSetTaskStatus();
    case OPERATION_STARTED:
      return isSetOperationStarted();
    case OPERATION_COMPLETED:
      return isSetOperationCompleted();
    case HAS_RESULT_SET:
      return isSetHasResultSet();
    case PROGRESS_UPDATE_RESPONSE:
      return isSetProgressUpdateResponse();
    case NUM_MODIFIED_ROWS:
      return isSetNumModifiedRows();
    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TGetOperationStatusResp.java