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

    case NEED_MERGE:
      return isNeedMerge();

    case WRITE_ID:
      return getWriteId();

    case VALID_WRITE_ID_LIST:
      return getValidWriteIdList();

    case ENGINE:
      return getEngine();

    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field engine 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/SetPartitionsStatsRequest.java