Cloud Spanner Client - Class Operation (1.66.0)

Version 1.66.0

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

Common interface for running operations against Cloud Spanner. This class is intended for internal use by the client library only. Implementors should access these operations via Google\Cloud\Spanner\Database or Google\Cloud\Spanner\Transaction.

Usage examples may be found in classes making use of this class:

• Google\Cloud\Spanner\Database
• Google\Cloud\Spanner\Transaction

Namespace

Google \ Cloud \ Spanner

Methods

__construct

Parameters
Name	Description
connection	Google\Cloud\Spanner\Connection\ConnectionInterface A connection to Google Cloud Spanner. This object is created by SpannerClient, and should not be instantiated outside of this client.
returnInt64AsObject	bool If true, 64 bit integers will be returned as a Google\Cloud\Core\Int64 object for 32 bit platform compatibility.

mutation

Create a formatted mutation.

Parameters
Name	Description
operation	string The operation type.
table	string The table name.
mutation	array The mutation data, represented as a set of key/value pairs.

Returns
Type	Description
array

deleteMutation

Create a formatted delete mutation.

Parameters
Name	Description
table	string The table name.
keySet	Google\Cloud\Spanner\KeySet The keys to delete.

Returns
Type	Description
array

commit

Commit all enqueued mutations.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session ID to use for the commit.
mutations	array A list of mutations to apply.
options	array Configuration options.
↳ transactionId	string The ID of the transaction.
↳ returnCommitStats	bool If true, return the full response. Defaults to false.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
Google\Cloud\Spanner\Timestamp	The commit Timestamp.

commitWithResponse

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session ID to use for the commit.
mutations	array A list of mutations to apply.
options	array Configuration options.
↳ transactionId	string The ID of the transaction.
↳ returnCommitStats	bool If true, return the full response. Defaults to false.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
array	An array containing {@see \Google\Cloud\Spanner\Timestamp} at index 0 and the commit response as an array at index 1.

rollback

Rollback a Transaction.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to use for the rollback. Note that the session MUST be the same one in which the transaction was created.
transactionId	string The transaction to roll back.
options	array [optional] Configuration Options.

Returns
Type	Description
void

execute

Run a query.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to use to execute the SQL.
sql	string The query string.
options	array Configuration options.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
Google\Cloud\Spanner\Result

executeUpdate

Execute a DML statement and return an affected row count.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session in which the update operation should be executed.
transaction	Google\Cloud\Spanner\Transaction The transaction in which the operation should be executed.
sql	string The SQL string to execute.
options	array Configuration options.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
int

executeUpdateBatch

Execute multiple DML statements.

For detailed usage instructions, see Google\Cloud\Spanner\Transaction::executeUpdateBatch().

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session in which the update operation should be executed.
transaction	Google\Cloud\Spanner\Transaction The transaction in which the operation should be executed.
statements	array[] A list of DML statements to run. Each statement must contain a sql key, where the value is a DML string. If the DML contains placeholders, values are provided as a key/value array in key parameters. If parameter types are required, they must be provided in key paramTypes. Generally, Google Cloud PHP can infer types. Explicit type declarations are required in the case of struct parameters, or when a null value exists as a parameter. Accepted values for primitive types are defined as constants on Google\Cloud\Spanner\Database, and are as follows: Database::TYPE_BOOL, Database::TYPE_INT64, Database::TYPE_FLOAT64, Database::TYPE_TIMESTAMP, Database::TYPE_DATE, Database::TYPE_STRING, Database::TYPE_BYTES. If the value is an array, use Google\Cloud\Spanner\ArrayType to declare the array parameter types. Likewise, for structs, use Google\Cloud\Spanner\StructType.
options	array Configuration Options.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
Google\Cloud\Spanner\BatchDmlResult

read

Lookup rows in a database.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session in which to read data.
table	string The table name.
keySet	Google\Cloud\Spanner\KeySet The KeySet to select rows.
columns	array A list of column names to return.
options	array Configuration Options.
↳ index	string The name of an index on the table.
↳ offset	int The number of rows to offset results by.
↳ limit	int The number of results to return.
↳ requestOptions	array Request options. For more information on available options, please see the upstream documentation. Please note, if using the priority setting you may utilize the constants available on Google\Cloud\Spanner\V1\RequestOptions\Priority to set a value.

Returns
Type	Description
Google\Cloud\Spanner\Result

transaction

See also:

• BeginTransactionRequest

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to start the transaction in.
options	array Configuration Options.
↳ singleUse	bool If true, a Transaction ID will not be allocated up front. Instead, the transaction will be considered "single-use", and may be used for only a single operation. Defaults to false.
↳ isRetry	bool If true, the resulting transaction will indicate that it is the result of a retry operation. Defaults to false.

Returns
Type	Description
Google\Cloud\Spanner\Transaction

createTransaction

Create a Transaction instance from a response object.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session the transaction belongs to.
res	array [optional] The createTransaction response.
options	array [optional] Options for the transaction object.

Returns
Type	Description
Google\Cloud\Spanner\Transaction

snapshot

See also:

• BeginTransactionRequest

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to start the snapshot in.
options	array Configuration Options.
↳ singleUse	bool If true, a Transaction ID will not be allocated up front. Instead, the transaction will be considered "single-use", and may be used for only a single operation. Defaults to false.
↳ className	string If set, an instance of the given class will be instantiated. This setting is intended for internal use. Defaults to Google\Cloud\Spanner\Snapshot.

Returns
Type	Description
mixed

createSnapshot

Create a Snapshot instance from a response object.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session the snapshot belongs to.
res	array [optional] The createTransaction response.
className	string [optional] The class to instantiate with a snapshot. Defaults to Google\Cloud\Spanner\Snapshot.

Returns
Type	Description
mixed

createSession

Create a new session.

Sessions are handled behind the scenes and this method does not need to be called directly.

Parameters
Name	Description
databaseName	string The database name
options	array Configuration options.
↳ labels	array Labels to be applied to each session created in the pool. Label keys must be between 1 and 63 characters long and must conform to the following regular expression: [a-z]([-a-z0-9]*[a-z0-9])?. Label values must be between 0 and 63 characters long and must conform to the regular expression ([a-z]([-a-z0-9]*[a-z0-9])?)?. No more than 64 labels can be associated with a given session. See https://goo.gl/xmQnxf for more information on and examples of labels.
↳ creator_role	string The user created database role which creates the session.

Returns
Type	Description
Google\Cloud\Spanner\Session\Session

session

Lazily instantiates a session. There are no network requests made at this point. To see the operations that can be performed on a session please see Google\Cloud\Spanner\Session\Session.

Sessions are handled behind the scenes and this method does not need to be called directly.

Parameter
Name	Description
sessionName	string The session's name.

Returns
Type	Description
Google\Cloud\Spanner\Session\Session

partitionQuery

Begin a partitioned SQL query.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to run in.
transactionId	string The transaction to run in.
sql	string The query string to execute.
options	array Configuration Options
↳ maxPartitions	int The desired maximum number of partitions to return. For example, this may be set to the number of workers available. The maximum value is currently 200,000. This is only a hint. The actual number of partitions returned may be smaller than this maximum count request. Defaults to 10000.
↳ partitionSizeBytes	int The desired data size for each partition generated. This is only a hint. The actual size of each partition may be smaller or larger than this size request. Defaults to 1000000000 (i.e. 1 GiB).
↳ parameters	array A key/value array of Query Parameters, where the key is represented in the query string prefixed by a @ symbol.
↳ types	array A key/value array of Query Parameter types. Generally, Google Cloud PHP can infer types. Explicit type definitions are only necessary for null parameter values. Accepted values are defined as constants on Google\Cloud\Spanner\ValueMapper, and are as follows: Database::TYPE_BOOL, Database::TYPE_INT64, Database::TYPE_FLOAT64, Database::TYPE_TIMESTAMP, Database::TYPE_DATE, Database::TYPE_STRING, Database::TYPE_BYTES, Database::TYPE_ARRAY and Database::TYPE_STRUCT. If the parameter type is an array, the type should be given as an array, where the first element is Database::TYPE_ARRAY and the second element is the array type, for instance [Database::TYPE_ARRAY, Database::TYPE_INT64].

Returns
Type	Description
array<Google\Cloud\Spanner\Batch\QueryPartition>

partitionRead

Begin a partitioned read.

Parameters
Name	Description
session	Google\Cloud\Spanner\Session\Session The session to run in.
transactionId	string The transaction to run in.
table	string The table name.
keySet	Google\Cloud\Spanner\KeySet The KeySet to select rows.
columns	array A list of column names to return.
options	array Configuration Options
↳ maxPartitions	int The desired maximum number of partitions to return. For example, this may be set to the number of workers available. The maximum value is currently 200,000. This is only a hint. The actual number of partitions returned may be smaller than this maximum count request. Defaults to 10000.
↳ partitionSizeBytes	int The desired data size for each partition generated. This is only a hint. The actual size of each partition may be smaller or larger than this size request. Defaults to 1000000000 (i.e. 1 GiB).
↳ index	string The name of an index on the table.

Returns
Type	Description
array<Google\Cloud\Spanner\Batch\ReadPartition>

__debugInfo

Represent the class in a more readable and digestable fashion.

Constants

OP_INSERT

Value: 'insert'

OP_UPDATE

Value: 'update'

OP_INSERT_OR_UPDATE

Value: 'insertOrUpdate'

OP_REPLACE

Value: 'replace'

OP_DELETE

Value: 'delete'