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<?php
namespace Drupal\Core\Queue;
/**
* Defines a batch queue handler used by the Batch API for non-progressive
* batches.
*
* This implementation:
* - Ensures FIFO ordering.
* - Allows an item to be repeatedly claimed until it is actually deleted (no
* notion of lease time or 'expire' date), to allow multipass operations.
*
* @ingroup queue
*/
class BatchMemory extends Memory {
/**
* Overrides \Drupal\Core\Queue\Memory::claimItem().
*
* Unlike \Drupal\Core\Queue\Memory::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)) {
reset($this->queue);
return current($this->queue);
}
return FALSE;
}
/**
* Retrieves all remaining items in the queue.
*
* This is specific to Batch API and is not part of the
* \Drupal\Core\Queue\QueueInterface.
*
* @return array
* An array of queue items.
*/
public function getAllItems() {
$result = [];
foreach ($this->queue as $item) {
$result[] = $item->data;
}
return $result;
}
}