Spring 启动：使用@Transactional 进行手动回滚

Question

Is it possible to mix the transaction programmatic and annotation-based management? By default, @Transactional does a rollback on any Runtime and rethrows it.

I would like to not rethrow it, but return Optional.empty() is it possible? It is easy to implement with transaction programmatic management: (I took example from the Spring docs)

transactionTemplate.execute(new TransactionCallbackWithoutResult() {

    protected (Optional<User>) doInTransactionWithoutResult(TransactionStatus status) {
        try {
            doStuff();
            return createUser();
        } catch (RuntimeException ex) {
            status.setRollbackOnly();
            return Optional.empty();
        }
    }
});

Is it possible to combine them in a good way? Lets say:

@Transactional
Optional<User> manageUser() {
  try {
    doStuff();
    return createUser();
  } case (RuntimeException e) {
     SomeTransactionalClass.setRollbackOnly();
     return Optional.empty();
  }
}

And what do you think, is mixing 2 ways of managing transactions a code smell?

Thanks you.

Answer 1

First solution that bounced to my head was to handle it on the catch block and it's the same solution that you found.