Sample PhotoService with CRUD methods that uses spring boot caching

PhotoService.java

@Service
public class PhotoService {

    @CachePut(cacheNames = "photo", key = "#photo.id")
    public Photo createPhoto(Photo photo) {
        return photo;
    }

    @Cacheable(cacheNames = "photo", key = "#id")
    public Photo findById(String id) {
        return null;
    }

    @CachePut(cacheNames = "photo", key = "#id")
    public Photo updatePhoto(String id, Photo photo) {
        return photo;
    }

    @CacheEvict(cacheNames = "photo", key = "#id")
    public void deletePhoto(String id) {
    }
}