Cloud Spanner V1 Client - Class Transaction (1.104.0)

Reference documentation and code samples for the Cloud Spanner V1 Client class Transaction.

A transaction.

Generated from protobuf message google.spanner.v1.Transaction

Namespace

Google \ Cloud \ Spanner \ V1

Methods

__construct

Constructor.

Parameters
Name	Description
`data`	`array` Optional. Data for populating the Message object.
`↳ id`	`string` `id` may be used to identify the transaction in subsequent Read, ExecuteSql, Commit, or Rollback calls. Single-use read-only transactions do not have IDs, because single-use transactions do not support multiple requests.
`↳ read_timestamp`	`Google\Protobuf\Timestamp` For snapshot read-only transactions, the read timestamp chosen for the transaction. Not returned by default: see TransactionOptions.ReadOnly.return_read_timestamp. A timestamp in RFC3339 UTC "Zulu" format, accurate to nanoseconds. Example: `"2014-10-02T15:01:23.045123456Z"`.
`↳ precommit_token`	`MultiplexedSessionPrecommitToken` A precommit token is included in the response of a BeginTransaction request if the read-write transaction is on a multiplexed session and a mutation_key was specified in the BeginTransaction. The precommit token with the highest sequence number from this transaction attempt should be passed to the Commit request for this transaction.

getId

id may be used to identify the transaction in subsequent Read, ExecuteSql, Commit, or Rollback calls.

Single-use read-only transactions do not have IDs, because single-use transactions do not support multiple requests.

Returns
Type	Description
`string`

setId

id may be used to identify the transaction in subsequent Read, ExecuteSql, Commit, or Rollback calls.

Single-use read-only transactions do not have IDs, because single-use transactions do not support multiple requests.

Parameter
Name	Description
`var`	`string`

Returns
Type	Description
`$this`

getReadTimestamp

For snapshot read-only transactions, the read timestamp chosen for the transaction. Not returned by default: see TransactionOptions.ReadOnly.return_read_timestamp.

A timestamp in RFC3339 UTC "Zulu" format, accurate to nanoseconds. Example: "2014-10-02T15:01:23.045123456Z".

Returns
Type	Description
`Google\Protobuf\Timestamp\|null`

hasReadTimestamp

clearReadTimestamp

setReadTimestamp