Cloud Spanner V1 Client - Class ReadLockMode (1.62.1)
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Version 1.62.1 keyboard_arrow_down
Reference documentation and code samples for the Cloud Spanner V1 Client class ReadLockMode.
ReadLockMode
is used to set the read lock mode for read-write
transactions.
Protobuf type google.spanner.v1.TransactionOptions.ReadWrite.ReadLockMode
Namespace
Google \ Cloud \ Spanner \ V1 \ TransactionOptions \ ReadWrite
Methods
static::name
Parameter Name Description value
mixed
static::value
Parameter Name Description name
mixed
Constants
READ_LOCK_MODE_UNSPECIFIED
Default value.
If the value is not specified, the pessimistic read lock is used.
Generated from protobuf enum READ_LOCK_MODE_UNSPECIFIED = 0;
PESSIMISTIC
Pessimistic lock mode.
Read locks are acquired immediately on read.
Generated from protobuf enum PESSIMISTIC = 1;
OPTIMISTIC
Optimistic lock mode.
Locks for reads within the transaction are not acquired on read.
Instead the locks are acquired on a commit to validate that
read/queried data has not changed since the transaction started.
Generated from protobuf enum OPTIMISTIC = 2;
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Last updated 2024-10-05 UTC.
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