QueueInterface

class \Drupal\Core\Queue\Batch extends \Drupal\Core\Queue\DatabaseQueue
class \Drupal\Core\Queue\BatchMemory extends \Drupal\Core\Queue\Memory
class \Drupal\Core\Queue\DatabaseQueue implements \Drupal\Core\Queue\ReliableQueueInterface, \Drupal\Core\Queue\QueueGarbageCollectionInterface uses \Drupal\Core\DependencyInjection\DependencySerializationTrait
class \Drupal\Core\Queue\Memory implements \Drupal\Core\Queue\QueueInterface

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