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

    switch (field) {
    case STATUS:
      return isSetStatus();
    case OPERATION_HANDLE:
      return isSetOperationHandle();
    }
    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/TGetFunctionsResp.java