private function getFromCacheByKey($key)
    {
        if ( ! $this->cache->contains($key)) {
            return null;
        }

        $serialized = $this->cache->fetch($key);

        return $this->unserializeAcl($serialized);
    }
private function getFromCacheByKey($key)
    {
        if ( ! $this->cache->contains($key)) {
            return null;
        }

        $serialized = $this->cache->fetch($key);

        return $this->unserializeAcl($serialized);
    }
private function getFromCacheByKey ( $ key ) { if ( ! $ this -> cache -> contains ( $ key ) ) { return null ; } $ serialized = $ this -> cache -> fetch ( $ key ) ; return $ this -> unserializeAcl ( $ serialized ) ; }
Retrieves an ACL for the given key from the cache

@param string $key

@return null|\Symfony\Component\Security\Acl\Model\AclInterface
Retrieves an ACL for the given key from the cache