def rollback(self, project, transaction_id):
"""Rollback the connection's existing transaction.
Maps the ``DatastoreService.Rollback`` protobuf RPC.
:type project: string
:param project: The project to which the transaction belongs.
:type transaction_id: string
:param transaction_id: The transaction ID returned from
:meth:`begin_transaction`.
"""
request = _datastore_pb2.RollbackRequest()
request.transaction = transaction_id
# Nothing to do with this response, so just execute the method.
self._datastore_api.rollback(project, request)
def rollback(self, dataset_id, transaction_id):
"""Rollback the connection's existing transaction.
Maps the ``DatastoreService.Rollback`` protobuf RPC.
:type dataset_id: string
:param dataset_id: The ID of the dataset to which the transaction
belongs.
:type transaction_id: string
:param transaction_id: The transaction ID returned from
:meth:`begin_transaction`.
"""
request = _datastore_pb2.RollbackRequest()
request.transaction = transaction_id
# Nothing to do with this response, so just execute the method.
self._rpc(dataset_id, 'rollback', request,
_datastore_pb2.RollbackResponse)