[weld-dev] persistence and transactions outside Java EE

[Pete Muir]

On 24 Nov 2009, at 20:47, Gavin King wrote:

> Dan, managed beans already support PC injection. I have to check, but I think they can even inject a UT. The only thing they don't have is declarative tx management.

This certainly works in JBoss AS right now.

> 
> Sent from my iPhone
> 
> On Nov 24, 2009, at 3:41 PM, Dan Allen <dan.j.allen at gmail.com> wrote:
> 
>> 
>> 
>> It's somewhat related....in terms of Resin, we actually don't have such
>> a thing as a traditional EJB container - we have "aspects" such as
>> transactions delivered via meta-data (e.g. @TransactionAttribute), the
>> aspects are bound to an underlying implementation (e.g. transaction
>> manager) and can be used in any component model including managed beans
>> or EJB. The "EJB Lite" distinction is tenuous since you don't really
>> need to use the EJB component model per se.
>> 
>> To be honest, I'm kind of confused myself now. Circling back to my initial argument, the two options we provide in Java EE at this moment are:
>> 
>> - a non-transactional "simple" managed bean or,
>> - an EJB session bean (which is, by default, transactional, and more)
>> 
>> So if the developer wants a transactional bean without using an EJB container, they have to use some sort of framework (or portable CDI extension) to get it. To me, that is where Java EE falls apart. There needs to be some middle of the road that the developer can get a transactional bean out of the box OR we just need to say, if you want a transactional bean, you have to use EJB w/ at least EJB lite, period.
>> 
>> Why isn't the "simple" transactional bean something that Java EE can provide. Clearly a use case is being ignored.
>> 
>> -Dan
>> 
>> p.s. The "simple" transactional bean would be a bean w/ @TransactionAttribute and somehow @PersistenceContext would be supported on the bean.
>> 
>> -- 
>> Dan Allen
>> Senior Software Engineer, Red Hat | Author of Seam in Action
>> Registered Linux User #231597
>> 
>> http://mojavelinux.com
>> http://mojavelinux.com/seaminaction
>> http://www.google.com/profiles/dan.j.allen
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