[jbosscache-dev] Support for JBoss JTA and pluggable TM testing complete

[Manik Surtani]

Thanks for this Jason - one step closer to a truly parameterised test  
suite!  Wahey!


On 4 Oct 2007, at 16:59, Jason T. Greene wrote:

> Everyone,
>
> I have added support for JBoss JTA standalone in Core Cache. To  
> enable it simply define transactionManagerLookupClass to be  
> "JBossStandalone JTAManagerLookup".
>
> I have also modified our testsuite to support a pluggable TM. This  
> includes a new testing profile for JBossJTA. When adding future  
> tests that you would like to be included in this profile, make sure  
> you put them in the "transaction" group.  This can be ran as follows:
>
> mvn -Ptransaction-jbossjta
>
> It is very important that all new tests be TM portable (I have  
> already fixed the existing ones). So, unless you are explictly  
> testing a specific TM, you should use the following techniques when  
> using transactions:
>
> 1. Configure the transaction manager using  
> TransactionSetup.getManagerLookup like so:
>
> cache.getConfiguration().setTransactionManagerLookupClass 
> (TransactionSetup.getManagerLookup());
>
> 2. Obtain UserTransaction from TransactionSetup.getUserTransaction();
>
> 3. Obtain the transaction manager, if you need it, from the cache:
> cache.getConfiguration().getRuntimeConfig().getTransactionManager();
>
> Alternatively, if there is no cache in your test, you can use  
> TransactionSetup:
>
> TransactionSetup.getTransactionManager();
>
> 4. Always use TransactionManager.commit()/setRollbackOnly()/rollback 
> () where possible.  Calling Transaction.commit() and  
> Transaction.rollback() does _not_ clear the Transaction associated  
> with the current thread. According to the spec future begin() calls  
> must fail, so if you do this it becomes your job to clear the  
> thread (using suspend). Alot of test code did not do this properly,  
> which was fine with DummyTransactionManager, but broke any spec  
> compliant TM.
>
> -Jason
>
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--
Manik Surtani

Lead, JBoss Cache
JBoss, a division of Red Hat