public DatabaseQueue::releaseItem($item) Releases

public DatabaseQueue::deleteQueue() Deletes

public DatabaseQueue::claimItem($lease_time = 30)

public DatabaseQueue::createItem($data) Adds

public DatabaseQueue::numberOfItems() Retrieves

public DatabaseQueue::deleteItem($item) Deletes

The database table name. File core/lib/Drupal/Core/Queue/DatabaseQueue.php, line 21

protected DatabaseQueue::catchException(\Exception $e)

protected DatabaseQueue::ensureTableExists()

protected DatabaseQueue::doCreateItem($data) Adds