Spring Boot. how to Pass Optional<> to an Entity Class

Question

i am currently making a website using spring and i stumble upon this basic scenario that i don\'t have any idea on how to solve this specific code: Entity = Optional;

Answer 1

The answers lack some job to do. Before you call get(), you should do some checking with isPresent(). Like so:

Optional optionalEntity =  roomRepository.findById(roomId);
if (optionalEntity.isPresent()) {
    RoomEntity roomEntity = optionalEntity.get();
    ...
}

Read this great article about optionals: https://dzone.com/articles/using-optional-correctly-is-not-optional