class Predis in Redis 8

Predis persistent lock backend

Hierarchy

• class \Drupal\Core\Lock\LockBackendAbstract implements LockBackendInterface
  • class \Drupal\redis\Lock\Predis uses RedisPrefixTrait
    • class \Drupal\redis\PersistentLock\Predis

3 string references to 'Predis'

ClientFactory::getClientInterface in src/ClientFactory.php

Lazy instantiates client proxy depending on the actual configuration.

Predis::getName in src/Client/Predis.php

Get underlying library name used.

RedisCacheTagsChecksum::doInvalidateTags in src/Cache/RedisCacheTagsChecksum.php

Marks cache items with any of the specified tags as invalid.

File

src/PersistentLock/Predis.php, line 10

Namespace

Drupal\redis\PersistentLock

class Predis extends \Drupal\redis\Lock\Predis {

  /**
   * Creates a Predis persistent lock backend.
   */
  public function __construct(ClientFactory $factory) {

    // Do not call the parent constructor to avoid registering a shutdown
    // function that releases all the locks at the end of a request.
    $this->client = $factory
      ->getClient();

    // Set the lockId to a fixed string to make the lock ID the same across
    // multiple requests. The lock ID is used as a page token to relate all the
    // locks set during a request to each other.
    // @see \Drupal\Core\Lock\LockBackendInterface::getLockId()
    $this->lockId = 'persistent';
  }

}

Members

Name	Modifiers	Type	Description	Overrides
LockBackendAbstract::$lockId	protected	property	Current page lock token identifier.
LockBackendAbstract::$locks	protected	property	Existing locks for this page.
LockBackendAbstract::getLockId	public	function	Gets the unique page token for locks. Overrides LockBackendInterface::getLockId
LockBackendAbstract::wait	public	function	Waits a short amount of time before a second lock acquire attempt. Overrides LockBackendInterface::wait
Predis::$client	protected	property
Predis::acquire	public	function	Acquires a lock. Overrides LockBackendInterface::acquire
Predis::getKey	protected	function	Generate a redis key name for the current lock name.
Predis::lockMayBeAvailable	public	function	Checks if a lock is available for acquiring. Overrides LockBackendInterface::lockMayBeAvailable
Predis::release	public	function	Releases the given lock. Overrides LockBackendInterface::release
Predis::releaseAll	public	function	Releases all locks for the given lock token identifier. Overrides LockBackendInterface::releaseAll
Predis::__construct	public	function	Creates a Predis persistent lock backend. Overrides Predis::__construct
RedisPrefixTrait::$prefix	protected	property
RedisPrefixTrait::getDefaultPrefix	protected	function	Get global default prefix
RedisPrefixTrait::getPrefix	protected	function	Get prefix
RedisPrefixTrait::setPrefix	public	function	Set prefix