Sorry it took a little longer. I have now committed my changes.
In fact I removed the check in the BeanProcessor and do it now inside the interceptor.

Apart from that I worked on making the jpa code compatible to aries transaction and making blueprint-jpa independent of jta. The reason for this is that JTA can be used independently from jpa so it makes sense to not mix both. For example we should be able to run JMS and JPA in the same transaction. This would not work if we tie transactions too much to jpa.

While trying to integrate with aries transaction blueprint I found some problems: - annotation based transactions are implemented but do not work. I think this is a bug in aries. The beanprocessor does not seem to be active. - The aries @Transaction annotation is defined in a very unfortunate way. It only applies to methods. In many cases you would simply want to annotate a class with it. Unfortunately I defined the copied transactions differently so they also applied to classes. So there was a conflict between the two. I now completely removed the transaction annotation from the jpa-experiments code. If we want to use annotation based transactions we will have to use different annotations anyway. I deferred this part for now.

Apart from that the xml declared transactions from aries transaction blueprint now work nicely together with the new blueprint-jpa module. The example is defined this way now.

For the closure based example I introduced a new TransactionType enum to avoid using the aries one.

So both examples should now work again.

I also found that I forgot to implement the @PersistenceUnit support. This is one possible next enhancement. For transaction support I wonder if we can reuse aries transaction blueprint. I am not sure to be honest. It is tailored a lot towards xml based annotations with * based filters and such. I would be in favour of dropping xml support completely for jpa and transactions and only have annotations in the new code. Not sure if the community agrees though.

Christian



On 08.04.2015 22:24, Giuseppe Gerla wrote:
Yes, I verified that the problem is that the TxBeanProcessor check the
transaction type in the following code

Interceptor interceptor = (getTransactionType(supplierProxy) ==
PersistenceUnitTransactionType.JTA) ?
                     new XaTxInterceptorImpl(tm, supplierProxy) : new
ResourceLocalTransactionalInterceptor(supplierProxy);
cdr.registerInterceptorWithComponent(beanData, interceptor);

Did you remove this part?




--
Christian Schneider
http://www.liquid-reality.de

Open Source Architect
http://www.talend.com

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