class BatchMemoryQueue

Defines a batch queue for non-progressive batches.


Expanded class hierarchy of BatchMemoryQueue

1 string reference to 'BatchMemoryQueue'
_batch_populate_queue in drupal/includes/
Populates a job queue with the operations of a batch set.


drupal/includes/, line 55
Queue handlers used by the Batch API.

View source
class BatchMemoryQueue extends MemoryQueue {

   * Overrides MemoryQueue::claimItem().
   * Unlike MemoryQueue::claimItem(), this method provides a default lease
   * time of 0 (no expiration) instead of 30. This allows the item to be
   * claimed repeatedly until it is deleted.
  public function claimItem($lease_time = 0) {
    if (!empty($this->queue)) {
      return current($this->queue);
    return FALSE;

   * Retrieves all remaining items in the queue.
   * This is specific to Batch API and is not part of the DrupalQueueInterface.
  public function getAllItems() {
    $result = array();
    foreach ($this->queue as $item) {
      $result[] = $item->data;
    return $result;



Namesort descending Modifiers Type Description Overrides
BatchMemoryQueue::claimItem public function Overrides MemoryQueue::claimItem(). Overrides MemoryQueue::claimItem
BatchMemoryQueue::getAllItems public function Retrieves all remaining items in the queue.
MemoryQueue::$id_sequence protected property Counter for item ids.
MemoryQueue::$queue protected property The queue data.
MemoryQueue::createItem public function Add a queue item and store it directly to the queue. Overrides DrupalQueueInterface::createItem
MemoryQueue::createQueue public function Create a queue. Overrides DrupalQueueInterface::createQueue
MemoryQueue::deleteItem public function Delete a finished item from the queue. Overrides DrupalQueueInterface::deleteItem
MemoryQueue::deleteQueue public function Delete a queue and every item in the queue. Overrides DrupalQueueInterface::deleteQueue
MemoryQueue::numberOfItems public function Retrieve the number of items in the queue. Overrides DrupalQueueInterface::numberOfItems
MemoryQueue::releaseItem public function Release an item that the worker could not process, so another worker can come in and process it before the timeout expires. Overrides DrupalQueueInterface::releaseItem
MemoryQueue::__construct public function Start working with a queue.