setStreamId example

if (!$category) {
            throw ProductException::categoryNotFound($categoryId);
        }

        $this->extendCriteria($context, $criteria, $category);

        $entities = $this->listingLoader->load($criteria, $context);

        $result = ProductListingResult::createFrom($entities);
        $result->addState(...$entities->getStates());

        $result->setStreamId($category->get('productStreamId'));

        return new ProductListingRouteResponse($result);
    }

    private function extendCriteria(SalesChannelContext $salesChannelContext, Criteria $criteria, PartialEntity $category): void
    {
        $hasProductStream = $category->get('productAssignmentType') === CategoryDefinition::PRODUCT_ASSIGNMENT_TYPE_PRODUCT_STREAM
            && $category->get('productStreamId') !== null;

        if ($hasProductStream) {
            $filters = $this->productStreamBuilder->buildFilters(
                

if ($productConfig->isProductStream() && $productConfig->getValue()) {
            $entitySearchResult = $result->get(self::PRODUCT_SLIDER_ENTITY_FALLBACK . '_' . $slot->getUniqueIdentifier());
            if ($entitySearchResult === null) {
                return;
            }

            /** @var ProductCollection $streamResult */
            $streamResult = $entitySearchResult->getEntities();

            $slider->setProducts($streamResult);
            $slider->setStreamId($productConfig->getStringValue());
        }
    }

    private function enrichFromSearch(ProductSliderStruct $slider, ElementDataCollection $result, string $searchKey, SalesChannelContext $saleschannelContext): void
    {
        $searchResult = $result->get($searchKey);
        if ($searchResult === null) {
            return;
        }

        /** @var ProductCollection|null $products */
        

new ProductCrossSellingStreamCriteriaEvent($crossSelling, $criteria, $context)
        );

        $searchResult = $this->listingLoader->load($criteria, $context);

        /** @var ProductCollection $products */
        $products = $searchResult->getEntities();

        $element = new CrossSellingElement();
        $element->setCrossSelling($crossSelling);
        $element->setProducts($products);
        $element->setStreamId($crossSelling->getProductStreamId());

        $element->setTotal($products->count());

        return $element;
    }

    private function loadByIds(ProductCrossSellingEntity $crossSelling, SalesChannelContext $context, Criteria $criteria): CrossSellingElement
    {
        $element = new CrossSellingElement();
        $element->setCrossSelling($crossSelling);
        $element->setProducts(new ProductCollection());