How to use transaction in jsp in CQ5.5

Question

Hello,
i'm playing around with transactions Jackrabbit should be capable of
I didn't find any resource to that specific topic.
Here's my code so far, but it isn't working properly...
final SlingRepository repository = sling.getService(SlingRepository.class);
Session session = repository.loginAdministrative(null);
UserTransaction utx = sling.getService(UserTransaction.class);
utx.begin();
out.println(utx.getStatus());
Node node = session.getNode("/path/to/a/content");
node.setProperty("a","property");
session.save();
out.println(utx.getStatus());
utx.rollback();
session.logout();
Expected result: The Property "a" is not appended to the node because Transaction was rolled back
Achieved result so far: The property is saved to the node.
What am i doing wrong?
What is the preferred way to use transaction?
Background: we are doing some asset operations in user profile node that take some time. It seems that the reverse replication launcher starts in between the process and breaks the replication process every now and then
Thanks for advice
Marc

Answer 1

I'm not very familiar with ODP .NET so I'm not sure what OracleTransactions is or what it actually does. TTClasses implements the normal TimesTen (ANSI) transaction model:
1. Transactions are specific to a database connection
2. You are always in a transaction except (a) immediately after you have connected and (b) immediately after a commit or rollback
3. The first database operation (including SELECT) executed after (a) or (b) above starts a transaction (there is no explicit 'begin work' operation)
4. A transaction is completed by either committing (call the TTConnection.commit() method or execute the COMMIT [WORK] SQL statement) or by rolling bacl (call the TTConnection.rollback() method or execute the ROLLBACK [WORK] SQL statement).
Does this answer the question? If not, please provide more details on what information you are seeking.
Thanks,
Chris