class PermanentMemcacheBackend in Permanent Cache Bin 8

Defines a permanent memcache cache implementation.

This cache implementation can be used for data like stock which don't really need to be cleared during normal cache rebuilds and need to be cleared . It uses the database to store cached data. Each cache bin corresponds to a database table by the same name.

Hierarchy

• class \Drupal\pcb_memcache\Cache\PermanentMemcacheBackend extends \Drupal\memcache\MemcacheBackend

File

modules/pcb_memcache/src/Cache/PermanentMemcacheBackend.php, line 18

Namespace

Drupal\pcb_memcache\Cache

class PermanentMemcacheBackend extends MemcacheBackend {

  /**
   * {@inheritdoc}
   */
  public function deleteAll() {

    // This cache doesn't need to be deleted when doing cache rebuild.
    // We do nothing here.
  }

  /**
   * Deletes all cache items in a bin when explicitly called.
   *
   * @see \Drupal\Core\Cache\DatabaseBackend::deleteAll()
   */
  public function deleteAllPermanent() {
    parent::deleteAll();
  }

}

Members

Name	Modifiers	Type	Description	Overrides
PermanentMemcacheBackend::deleteAll	public	function	Deletes all cache items in a bin.
PermanentMemcacheBackend::deleteAllPermanent	public	function	Deletes all cache items in a bin when explicitly called.