A JBoss EJB3 hivemind service
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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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