/** * @param string $identifier * @return \eZ\Publish\SPI\Persistence\Content\Type\Group * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If type group with $identifier is not found */ public function loadGroupByIdentifier($identifier) { if (isset($this->groups[$identifier])) { return $this->groups[$identifier]; } return $this->groups[$identifier] = $this->innerHandler->loadGroupByIdentifier($identifier); }