repo

@Repository
public class CustomItemRepositoryImpl implements CustomItemRepository {

    private final ItemRepository itemRepository;


    @Autowired
    public CustomItemRepositoryImpl(ItemRepository itemRepository) {
        this.itemRepository = itemRepository;
    }


    @Override
    public Page<Item> search(String name, String description, Collection<Long> categoryIds, Pageable pageable) {
        ItemSpecificationBuilder builder = new ItemSpecificationBuilder();
        Specification<Item> specs = builder
                .withNameLike(name)
                .withDescriptionLike(description)
                .withCategoriesIdsIn(categoryIds)
                .build();

        if (specs != null) {
            return itemRepository.findAll(specs, pageable);
        } else {
            return itemRepository.findAll(pageable);
        }
    }
}