users@ejb-spec.java.net

[ejb-spec users] [jsr345-experts] Re: Pushing _at_Transactional in the EJB spec ?

From: Antonio Goncalves <antonio.goncalves_at_gmail.com>
Date: Tue, 5 Mar 2013 07:44:00 +0100

So are you saying it's better not to use them in EJBs ? Or mixing both
(EJBs and Managed Bean transactions) is not appropriate ? What happens if
we have this ? Is the method propagated as expected ?

@Stateless
public class MyEJB {

  @Inject
  private MyBean myBean;

  public void defaultRequiredMethod() {
    myBean.defaultTxMethod();
  }
}

@Transactional
public class MyBean {

  public void defaultRequiredMethod() {
    myBean.defaultTxMethod();
  }
}


On Tue, Mar 5, 2013 at 5:44 AM, Marina Vatkina <marina.vatkina_at_oracle.com>wrote:

> It's noted in the JTA spec and somewhat in the Interceptors spec already
> and I planned to add a word of caution on the Tx interceptors to the EJB
> spec. The problem with these interceptors is that they are CDI interceptors
> and as such are invoked after the @Interceptors interceptor and may change
> tx context if they are not the same as the EJB settings.
>
> -marina
>
>
> On 3/4/13 7:57 AM, Antonio Goncalves wrote:
>
> I was reading the JTA JIRAs about the Transactional model in Managed Beans
> (http://java.net/jira/browse/JTA_SPEC-5). It will be using the new
> interceptor binding @javax.transaction.Transactional with a TrxType
> (REQUIRED, REQUIRES_NEW...) :
>
> @Inherited
> @InterceptorBinding
> @Target({TYPE,METHOD})
> @Retention(RUNTIME)
> public @interface *Transactional *{ TxType value() default
> TxType.REQUIRED }
>
> public enum *TxType *{ REQUIRED, REQUIRES_NEW, MANDATORY, SUPPORTS,
> NOT_SUPPORTED, NEVER }
>
> There is nothing about @Transactional in the EJB spec. Why don't we push
> the new @Transactional model into EJBs ? This way developers would be
> encouraged to use @Transactional all over the plateform and start
> forgetting about javax.ejb.TransactionAttribute.
>
> What do you think ?
>
>
> --
> Antonio Goncalves
> Software architect and Java Champion
>
> Web site <http://www.antoniogoncalves.org> | Twitter<http://twitter.com/agoncal>|
> LinkedIn <http://www.linkedin.com/in/agoncal> | Paris JUG<http://www.parisjug.org> |
> Devoxx France <http://www.devoxx.fr>
>
>
>


-- 
Antonio Goncalves
Software architect and Java Champion
Web site <http://www.antoniogoncalves.org> |
Twitter<http://twitter.com/agoncal>|
LinkedIn <http://www.linkedin.com/in/agoncal> | Paris
JUG<http://www.parisjug.org> |
Devoxx France <http://www.devoxx.fr>