public function findItemsByItemTypeAndItemUid(string $itemType, int $itemUid) : array
    {
        $queryBuilder = $this->getQueryBuilder();
        $compositeExpression = $queryBuilder->expr()->andX(
            $queryBuilder->expr()->eq('item_type', $queryBuilder->getConnection()->quote($itemType, \PDO::PARAM_STR)),
            $queryBuilder->expr()->eq('item_uid', $itemUid)
        );
        return $this->getItemsByCompositeExpression($compositeExpression, $queryBuilder);
    }