[ http://issues.apache.org/jira/browse/TAPESTRY-882?page=all ]
Giampaolo Tomassoni updated TAPESTRY-882:
-----------------------------------------
Attachment: Example.zip
> A JBoss EJB3 hivemind service
> -----------------------------
>
> Key: TAPESTRY-882
> URL: http://issues.apache.org/jira/browse/TAPESTRY-882
> Project: Tapestry
> Type: Improvement
> Components: Contrib
> Versions: 4.0
> Environment: JBoss 4.0.4
> Reporter: Giampaolo Tomassoni
> Priority: Minor
> Attachments: Example.zip
>
> I don't know if I just reinvented the weel, but I had no luck in finding a
> way to access my database by injection of a javax.persistence.EntityManager
> from Tapestry.
> More specifically, I needed access from Tapestry to the
> javax.persistence.EntityManager instance that was supposed to be tied to my
> running thread. Also, since EJB3 persistence is implemented through Hibernate
> in JBoss and I prefer to use criteria queries instead of the EJB3 standard
> ones, sometimes I find useful to have access to the Hibernate Session
> instance overlooking my http request.
> So, I developed a hivemind service for this purpose. I'm attaching its
> sources for two purposes:
> 1) maybe someone finds it useful for his/her purposes. Of course, it may
> be eventually included in Tapestry as well;
> 2) since I'm new to hivemind and all this "injection" era, I would like to
> have my code reviewed by someone more knowledgeable than me. This is to
> avoid going to use something that crashes down when the wind blows
> in a given way and the sun is at sunset and a big load is moved...
> I named the hivemind service JbossEntityManagerFactory, but it yields either
> a javax.persistence.EntityManagerFactory or a (proxy) to a
> javax.persistence.EntityManager or org.hibernate.Session instance.
> Of course, I put it in an examplar hive into the hivemind registry and the
> java packaging.
> I'm looking for your suggestions and reviews.
> Regards,
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