objectStore = $objectStore; } public function getStorageId() { return $this->objectStore->getStorageId(); } public function readObject($urn) { return $this->objectStore->readObject($urn); } public function writeObject($urn, $stream, ?string $mimetype = null) { return $this->objectStore->writeObject($urn, $stream, $mimetype); } public function deleteObject($urn) { throw new \Exception(); } public function objectExists($urn) { return $this->objectStore->objectExists($urn); } public function copyObject($from, $to) { $this->objectStore->copyObject($from, $to); } }