doDelete() 추상적인 보호된 메소드

Deletes a cache entry.
abstract protected doDelete ( string $id ) : boolean
$id string The cache id.
리턴 boolean TRUE if the cache entry was successfully deleted, FALSE otherwise.
 /**
  * @inheritdoc
  */
 protected function doDelete($id)
 {
     return $this->cacheProvider->doDelete($id);
 }