Class TransactionOptions (2.1.0) 

TransactionOptions(mapping=None, *, ignore_unknown_fields=False, **kwargs)

TransactionOptions are used to specify different types of transactions.

For more info, see: https://cloud.google.com/spanner/docs/reference/rest/v1/Transaction

Attributes

NameDescription
read_write `.transaction.TransactionOptions.ReadWrite`
Transaction may write. Authorization to begin a read-write transaction requires ``spanner.databases.beginOrRollbackReadWriteTransaction`` permission on the ``session`` resource.
partitioned_dml `.transaction.TransactionOptions.PartitionedDml`
Partitioned DML transaction. Authorization to begin a Partitioned DML transaction requires ``spanner.databases.beginPartitionedDmlTransaction`` permission on the ``session`` resource.
read_only `.transaction.TransactionOptions.ReadOnly`
Transaction will not write. Authorization to begin a read-only transaction requires ``spanner.databases.beginReadOnlyTransaction`` permission on the ``session`` resource.

Inheritance

builtins.object > proto.message.Message > TransactionOptions

Classes

PartitionedDml

PartitionedDml(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Message type to initiate a Partitioned DML transaction.

ReadOnly

ReadOnly(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Message type to initiate a read-only transaction.

ReadWrite

ReadWrite(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Message type to initiate a read-write transaction. Currently this transaction type has no options.