👀 Views: 0 💬 Answers: 1 📅 Created: 2025-07-18

spring-boot hibernate jpa transaction Java

I'm sure I'm missing something obvious here, but This might be a silly question, but I'm working with an scenario where changes made to the database using Spring Data JPA and Hibernate are not being flushed immediately when using the `@Transactional` annotation. I've noticed that after saving an entity, if I try to read it back in the same transaction, I get a stale state or even an empty result. For example, I have the following service method: ```java @Service public class UserService { @Autowired private UserRepository userRepository; @Transactional public void updateUser(Long userId, String newName) { User user = userRepository.findById(userId).orElseThrow(() -> new EntityNotFoundException("User not found")); user.setName(newName); userRepository.save(user); // This does not seem to update immediately } } ``` After calling `updateUser`, if I try to fetch the user again in the same transaction, it doesn't reflect the new name. I verified that the `User` entity is not in the first-level cache when I try to fetch it again. I've tried configuring the `flushMode` like this: ```java @PersistenceContext private EntityManager entityManager; @Transactional public void updateUser(Long userId, String newName) { // Similar code as above entityManager.flush(); // Trying to force flush } ``` However, this still doesn't fix the question. I'm using Spring Boot 2.6.4 and Hibernate 5.6.1. Is there something I'm missing regarding how transactions and flushing works in this context? Any insights into ensuring that changes are persisted immediately would be greatly appreciated. Also, if there are best practices related to JPA transactions that I should be aware of, I'd love to learn about those as well. This is part of a larger application I'm building. What am I doing wrong? This is part of a larger web app I'm building. Any ideas what could be causing this? I'd love to hear your thoughts on this.