private function getDeliveryEndDateProperty() {
        $this->propertyDeliveryEndDate = $this->propertyDeliveryEndDate ?: $this->getProperty(DeliveryAssemblyService::PROPERTY_END);
        return $this->propertyDeliveryEndDate;
    }
private function getDeliveryEndDateProperty() {
        $this->propertyDeliveryEndDate = $this->propertyDeliveryEndDate ?: $this->getProperty(DeliveryAssemblyService::PROPERTY_END);
        return $this->propertyDeliveryEndDate;
    }
private function getDeliveryEndDateProperty ( ) { $ this -> propertyDeliveryEndDate = $ this -> propertyDeliveryEndDate ? : $ this -> getProperty ( DeliveryAssemblyService :: PROPERTY_END ) ; return $ this -> propertyDeliveryEndDate ; }
Caching property to avoid multiple generations
@return \core_kernel_classes_Property
Caching property to avoid multiple generations