[Springframework-developer] XAResource and Spring transaction managers

[Costin L. <cos...@ya...>]

Hello

Disclaimer: I'm not proficient with the internals of (global) transactions,
resource adapters so please excuse my mistakes if I make any.

I'm working on an some code to integrate JackRabbit (JSR-170) with Spring (and
make it part of Spring modules in the end). I've got some problems
with transaction support because the current implementation offers an
XA resource to work which ofc requires an Xid and everything;
having a javax.transaction.Transaction would have been much better
(the existing Hibernate TMs are very good leads - actually the initial
code I worked on emulating transaction using the JCR session methods
refresh and save (think of them as Hibernate Session saveOrUpdate and
clear()).

I tried to look through the Spring sources in order to see a best
practice of how an XA resource should be handled inside a transaction manager but I
didn't find anything.

Right now the solution seems to be creating a wrapper transaction
manager (maybe by subclassing JtaTransactionManager) specific to JackRabbit
(to acquire the XAResource) which will enlist/delist the XAResource to
the delegated/parent transaction manager but I feel like I'm missing something here;
that I've should have found something already inside the Spring package.

Any help/hints/links appreciated.

--
Regards,
  Costin Leau