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HELP!! MIGRATING FROM EJB 2.1 to EJB 3.1 for Large Enterprise Application  RSS feed

 
Jigar Upadhyay
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Hello Ranchers,
I am working on a large enterprise application and application is using EJB2.1 and still under development. Its a too big project for the too big Organization but the technology used in this project seems to be little out dated to me at some point.

We are using Session Beans and Message Drive Beans (as JMS consumer) but not using Entity Beans.

Now my question is what are the main advantages in migrating to EJB 3.1 from EJB 2.1? I know some of the advntages and search on net as well but I want to know the feedback if some one has faced this situation in their project before. I want to know how tough it is to migrate it from EJB 2.1 to EJB 3.1? What are the main challenges behind this?

Hope to see great response as always from all of you.
 
Jeanne Boyarsky
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Jigar,
It depends on what parts of JEE you are using. Upgrading entity beans to JPA is a lot of work. Or you could run on a later server keeping the beans at EJB 2.X.
 
Jigar Upadhyay
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Jeanne,
Thanks for your feedback. We are not using Entity Beans and using MDBs and Session Beans only.
 
Reza Rahman
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Jigar,

Please see my response to the other thread you created. In short, we cover this in EJB 3 in Action in a separate chapter, it is very worthwhile and easy to do.

Regards,
Reza
 
Jeanne Boyarsky
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Closing this thread. See the other thread Reza refers to.
 
Devaka Cooray
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Jeanne Boyarsky wrote:Closing this thread. See the other thread Reza refers to.


It seems Jeanne forgot to close it.
 
Jaikiran Pai
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I'll do it now
 
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