How to run two Spring transactions in a single hibernate Session?

Question

I know, that there is a way to descend to a low level - get connection and perform two transaction's by hand in a single hibernate session.

But the question is - how to invoke second nested transaction in the same Session via @Transactional annotations (not using "low level hacks" or handwrited custom transaction management)?

Some possible code:

@Service
public class DoubleTransaction {

@Autowired
private SessionFactory sf;

@Autowired
private NestedTeHandler nestedHandler;

@Transactional
void invokeTransaction() {
    Session cs = sf.getCurrentSession();
    Session nestedCs = nestedHandler.invokeNested(sf);
    System.out.println(cs == nestedCs);
}}

@Service
public class NestedTeHandler {

@Transactional
Session invokeNested(SessionFactory sf) {
    return sf.getCurrentSession();
}}

you could use transaction managed – gstackoverflow Oct 21 '18 at 18:17 — gstackoverflow, Oct 21 '18 at 18:17

score 0 · Accepted Answer · answered Apr 05 '18 at 04:45

0

You might be able to do that with

@org.springframework.transaction.annotation.Transactional(propagation = Propagation.NESTED)

on NestedTeHandler.invokeNested. See documenation at https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/transaction/annotation/Transactional.html.

See also this question: Differences between requires_new and nested propagation in Spring transactions.

answered Apr 05 '18 at 04:45

Christophe L

13,725
6
33
33

Can you please provide some confirmation, that nested transaction doesn't open new session ? – uptoyou Apr 05 '18 at 12:57
That's what the documentation implies. I have personally never used that feature so I can't confirm it. – Christophe L Apr 05 '18 at 17:37

How to run two Spring transactions in a single hibernate Session?

1 Answers1