Hibernate + WebLogic 8.1

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Hi all,

I need some help to find a good howto or informations about hibernate integration into WebLogic 8.1 SP2.
I already work with JBoss and I use a ***.sar but with WebLogic I find nothing who explain me the "good" method to use and configure Hibernate on this server.
I know that I could find few info on the web but I m very short on time so you can contact me by e-mail.

Thanks in advance for all your helps.
Kind regards.

christian · **Posted:** Fri Aug 06, 2004 10:49 am

Maybe you can contact BEA for support?

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Hi Christian,

I work for the European Commission and it's very hard to contact dedicated BEA support for the EU quickly.
I only want in a few words the best way to use Hibernate into BEA.
I sorry to take your time because I know it's not easy for you to read all posts.
I can see on the site that another service of UE use Hibernate so I try to contact them but without response...
thanks & regards

christian · **Posted:** Fri Aug 06, 2004 11:02 am

Well, as long as you can wait, there's our forum, but I doubt someone will assist you personally per email. Anyway, there shouldn't be any problems: Hibernate needs a Datasource in JNDI, so you have to set this up in Weblogic somehow (don't ask me). Then tell Hibernate where the Datasource is and the JNDI name where a JTA UserTransaction can be obtained. Thats it, unless you want to use the second-level cache. In this case, also tell Hibernate which TransactionManagerLookupClass it should use.

The rest is pretty much the same everywhere, just write a Hibernate application/DAO/whatever.

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Ok, because usually I use JBosse service but with WLS it's not possible I hate WLS:)
Ok thanks for your information Christian for these information.
Have nice day.

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Hi Christian,

I work for the UE and it's very hard to contact dedicated BEA support for the EU quickly.
I only want in a few words the best way to use Hibernate into BEA.
I sorry to take your time because I know it's not easy for you to read all posts.
I can see on the site that another service of UE use Hibernate so I try to contact them but without response...
thanks & regards

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Sorry for the last post, it's a mistke....

steve · **Posted:** Mon Aug 09, 2004 11:08 am

How's it not possible with WL8.1? I've used Hibernate with both WL6.1 and 8.1. It works fine.

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

I speak about Jboss services... it's not possible on WLS :+)
I'll try with a BEA RAR, or a startup class to initialize Hibernate.
Thanks for all.

Kind regards.

steve · **Posted:** Tue Aug 10, 2004 2:03 pm

Sure a jboss service would not be usable in weblogic.

I'd not use a startup class. If you go that route (at least up through 6.1), you'd need to stop/restart the entire server to redeploy your session factory. Perhaps thats been changed in 8.1, but I doubt it.

Use a startup servlet instead. Thats the approach I used. It works great. Even if its an ejb application, wrap it in an ear with a war solely performing the startup functionality. As a bonus, this approach is very portable :)

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Yes an init servlet is the best way to initialize all framework in general, this is the solution that I use very often.
I don't like WLS :+)
Thanks for all guys

emmanuel · **Posted:** Mon Aug 16, 2004 9:31 am

subich wrote:

Yes an init servlet is the best way to initialize all framework in general, this is the solution that I use very often.
I don't like WLS :+)
Thanks for all guys

I disagree, I use Weblogic 7 and 8.1 for quite a time now and my frameworks are lately called and thus lately initialized. No need for an init servlet of any kind.
Plus servlets have their own Classloader on Java2, it leads to painful bugs if not well understood

steve · **Posted:** Mon Aug 16, 2004 7:51 pm

Depends what you mean by "lately initialized". If you mean upon first request, I think thats not ideal for something like Hibernate that takes quite some time for initialization. The first user request would then incur the time it takes Hibernate to initialize.

emmanuel · **Posted:** Wed Aug 18, 2004 3:22 am

Well, in a web model, it is fine. I had way more pain with jsp compile process ;-)

subich · **Joined:** Fri Nov 21, 2003 5:55 am **Posts:** 155

Well Emmanuel,

We can speak a lot about initialization, bur the aim of an init servlet is that on each app server that you ll use.
All your properties files... of any framework will be right loaded and for example if you are using hibernate on jboss and you must migrate to wls.
You have only the wls conf files to add.
I think that you ll agree with me that migrate an application to a new app server is very fastidious task.

But it's ok than everyone has their own habits to organize it with the goal to provide more portable than possible.

One very good framework for this is Spring :) So nice to use and very light.

AOP and IOC have changed my life :)

Kind regards all.

Emmanuel and Steve thks to you for all information you give on this forum.