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

    case WRITEID:
      return getWriteid();

    case DBNAME:
      return getDbname();

    case TABLENAME:
      return getTablename();

    case PARTITIONNAMES:
      return getPartitionnames();

    case OPERATION_TYPE:
      return getOperationType();

    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field operationType is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/AddDynamicPartitions.java