Nope, not if the failure occurs in phase two. In that case
you get heuristics, which the TS knows about internally but
for which JTA has no Status. Hence we use STATUS_UNKNOWN.
Jonathan.
Manik Surtani wrote:
How, then, does a STATUS_UNKNOWN come about?
Any failure before afterCompletion() sequences commence (i.e., in
beforeCompletion()) should result in a rollback, right?
On 23 Aug 2007, at 11:09, Jonathan Halliday wrote:
>
> No, the status is determined before any of the afterCompletions run
> and does not change. An afterCompletions success/failure does not
> change the transaction outcome. They are in effect receiving
> notification of an earlier event and the notifications are
> independent, may happen in arbitrary order or even in parallel. Well,
> aside from the use of TransactionSynchronizationRegistry, but that's
> another story.
>
> Jonathan.
>
> Manik Surtani wrote:
>> Ok, then the DummyTM's current behaviour of swallowing exceptions in
>> afterCompletion() is correct?
>> What about the status that gets passed into subsequent Syncs after an
>> exception is encountered? I'd expect something like (pseudocode):
>> int status = getStatusFromBeforeCompletion();
>> for (Synchronization s : syncs)
>> {
>> try
>> {
>> s.afterCompletion(status);
>> }
>> catch (Exception e)
>> {
>> log(e);
>> status = STATUS_UNKNOWN; // so subsequent Syncs get this status
>> }
>> }
>
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> Owens (Ireland)
--
Manik Surtani
Lead, JBoss Cache
JBoss, a division of Red Hat
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