📄 Source: ReadWrite.php
<?php
/*
* Copyright 2014 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
namespace Google\Service\Spanner;
class ReadWrite extends \Google\Model
{
/**
* Default value. * If isolation level is SERIALIZABLE, locking semantics
* default to `PESSIMISTIC`. * If isolation level is REPEATABLE_READ, locking
* semantics default to `OPTIMISTIC`. * See [Concurrency
* control](https://cloud.google.com/spanner/docs/concurrency-control) for
* more details.
*/
public const READ_LOCK_MODE_READ_LOCK_MODE_UNSPECIFIED = 'READ_LOCK_MODE_UNSPECIFIED';
/**
* Pessimistic lock mode. Lock acquisition behavior depends on the isolation
* level in use. In SERIALIZABLE isolation, reads and writes acquire necessary
* locks during transaction statement execution. In REPEATABLE_READ isolation,
* reads that explicitly request to be locked and writes acquire locks. See
* [Concurrency control](https://cloud.google.com/spanner/docs/concurrency-
* control) for details on the types of locks acquired at each transaction
* step.
*/
public const READ_LOCK_MODE_PESSIMISTIC = 'PESSIMISTIC';
/**
* Optimistic lock mode. Lock acquisition behavior depends on the isolation
* level in use. In both SERIALIZABLE and REPEATABLE_READ isolation, reads and
* writes do not acquire locks during transaction statement execution. See
* [Concurrency control](https://cloud.google.com/spanner/docs/concurrency-
* control) for details on how the guarantees of each isolation level are
* provided at commit time.
*/
public const READ_LOCK_MODE_OPTIMISTIC = 'OPTIMISTIC';
/**
* Optional. Clients should pass the transaction ID of the previous
* transaction attempt that was aborted if this transaction is being executed
* on a multiplexed session.
*
* @var string
*/
public $multiplexedSessionPreviousTransactionId;
/**
* The read lock mode for the transaction.
*
* @var string
*/
public $readLockMode;
/**
* Optional. Clients should pass the transaction ID of the previous
* transaction attempt that was aborted if this transaction is being executed
* on a multiplexed session.
*
* @param string $multiplexedSessionPreviousTransactionId
*/
public function setMultiplexedSessionPreviousTransactionId($multiplexedSessionPreviousTransactionId)
{
$this->multiplexedSessionPreviousTransactionId = $multiplexedSessionPreviousTransactionId;
}
/**
* @return string
*/
public function getMultiplexedSessionPreviousTransactionId()
{
return $this->multiplexedSessionPreviousTransactionId;
}
/**
* The read lock mode for the transaction.
*
* Accepted values: READ_LOCK_MODE_UNSPECIFIED, PESSIMISTIC, OPTIMISTIC
*
* @param self::READ_LOCK_MODE_* $readLockMode
*/
public function setReadLockMode($readLockMode)
{
$this->readLockMode = $readLockMode;
}
/**
* @return self::READ_LOCK_MODE_*
*/
public function getReadLockMode()
{
return $this->readLockMode;
}
}
// Adding a class alias for backwards compatibility with the previous class name.
class_alias(ReadWrite::class, 'Google_Service_Spanner_ReadWrite');
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