Smile\ElasticsuiteVirtualCategory\Model\ResourceModel\VirtualCategory\Collection::getVirtualAttributeBackend PHP Method

getVirtualAttributeBackend() private method

Virtual attribute backend.
private getVirtualAttributeBackend ( ) : Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
return Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
    private function getVirtualAttributeBackend()
    {
        if ($this->virtualAttributeBackend === null) {
            $this->virtualAttributeBackend = $this->getResource()->getAttribute('virtual_rule')->getBackend();
        }
        return $this->virtualAttributeBackend;
    }