public enum TransactionOptions.ReadWrite.ReadLockMode extends Enum<TransactionOptions.ReadWrite.ReadLockMode> implements ProtocolMessageEnum
ReadLockMode
is used to set the read lock mode for read-write
transactions.
Protobuf enum google.spanner.v1.TransactionOptions.ReadWrite.ReadLockMode
Implements
ProtocolMessageEnumStatic Fields | |
---|---|
Name | Description |
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. |
OPTIMISTIC_VALUE | 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. |
PESSIMISTIC | Pessimistic lock mode. Read locks are acquired immediately on read. |
PESSIMISTIC_VALUE | Pessimistic lock mode. Read locks are acquired immediately on read. |
READ_LOCK_MODE_UNSPECIFIED | Default value. If the value is not specified, the pessimistic read lock is used. |
READ_LOCK_MODE_UNSPECIFIED_VALUE | Default value. If the value is not specified, the pessimistic read lock is used. |
UNRECOGNIZED |
Static Methods | |
---|---|
Name | Description |
forNumber(int value) | |
getDescriptor() | |
internalGetValueMap() | |
valueOf(Descriptors.EnumValueDescriptor desc) | |
valueOf(int value) | Deprecated. Use #forNumber(int) instead. |
valueOf(String name) | |
values() |
Methods | |
---|---|
Name | Description |
getDescriptorForType() | |
getNumber() | |
getValueDescriptor() |