public function getQueryBuilder() {
        if (!isset($this->_queryBuilder)) {
            /** @var QueryBuilderInterface $queryBuilder */
            $queryBuilder = $this->createComponent(QueryBuilderInterface::class);
            $this->_queryBuilder = $queryBuilder;
        }
        return $this->_queryBuilder;
    }
public function getQueryBuilder() {
        if (!isset($this->_queryBuilder)) {
            /** @var QueryBuilderInterface $queryBuilder */
            $queryBuilder = $this->createComponent(QueryBuilderInterface::class);
            $this->_queryBuilder = $queryBuilder;
        }
        return $this->_queryBuilder;
    }
public function getQueryBuilder ( ) { if ( ! isset ( $ this -> _queryBuilder ) ) { /** @var QueryBuilderInterface $queryBuilder */ $ queryBuilder = $ this -> createComponent ( QueryBuilderInterface :: class ) ; $ this -> _queryBuilder = $ queryBuilder ; } return $ this -> _queryBuilder ; }
Get query builder
@return QueryBuilderInterface
Get query builder