Hi,

Could someone possibly point me in the direction of a complete JBOSS/Hibernate example?

I've come up the learning curve of using Hibernate and JBOSS individually, but need that last bit of help to pull them together.

Many thanks

Gordon

Have you read this yet?

http://www.hibernate.org/66.html

Yes, this has gotten me most of the way there (I think?).

I've created an entity bean and mapping file, and have tested this using a stand-alone application (generated the schema from the mapping file - all works ok).

I've set up my jdbc connection and tested this as working using the J2EE tutorial CMP example.

I've packaged up a SAR as described in the above article. JBOSS didn't throw up any errors when I deployed the EAR, so I'm assuming it's working ok.

I've created a jboss session bean which simply returns a number, and this works ok.

So now for the last bit...how do I call the hibernate service from within the session bean?

I had the following code in my stand-alone application, and this worked fine:

Configuration configuration = new Configuration();
configuration.addClass(Trade.class);
SessionFactory sessionFactory=configuration.buildSessionFactory();
Trade newTrade = new Trade();
newTrade.setTradeName("Trade1");
Session session = sessionFactory.openSession();
session.save(newTrade);
session.flush();
session.connection().commit();
session.close();

When I copy this into the session bean code the IDE (I'm using Eclipse) is giving me an error "Unhandled exception type NamingException" on most of these lines starting at configuration.addClass.

I'm a newbie at Java as well, so apologies in advance if I'm asking something really dumb.

Many thanks

Gordon

You're biting off quite a chunk, aren't you? :)

Some java methods can throw Exceptions. When that is the case you have to either place the method call in a try/catch block or rethrow the exception from the current method.

If the preceeding paragraph was incomprehensible you need to do a bit more study...

Hi Gordon,

If you've followd the SAR example and deployed the SAR within JBoss, then there are a couple of things you'll want to change w.r.t. how you use Hibernate from within your session bean method call.

1. You don't have to manually create the configuration and session factory. If the SAR is done properly, this all gets taken care of.

2. If I recall, the SAR example has an attribute element that defines a JNDI name for the hibernate session factory. Lets say you used an attribute value of "java:/hibernate/HibernateFactory". You can get the session factory from JNDI like this (keep in mind that this isn't production quality or anything...):


Once you've got the factory, you can create sessions and do the rest of your Hibernate work in the normal way.

Good luck, Gordon.

It's taken a while, but I finally got there!
Thanks for the help.

Gordon.

Hi all,

I created the following into HibernatePlugin, according mdavision, but
an exception occurs.



The exception:



What is the problem with this?

thanks

jboss-service.xml deve ta errado

Hi, I found the error... it was in the following tag:

<depends>jboss.jca:service=LocalTxCM,name=DataSourcr</depends>

where the correct is:

<depends>jboss.jca:service=LocalTxCM,name=projds</depends>



thanks strikepollar

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