Re: [JBoss-user] Re: Hibernate or ejb

[kiuma <ki...@us...>]

Schnitzer, Jeff wrote:

>>Sounds like Hibernate needs some integration with J2EE transactions.
>>    
>>
>
>Yes, and I gather that a component is in the works.  But Hibernate works
>well in an EJB environment anyways.
>
>The great advantage over Hibernate over CMP, IMHO, is that the data
>objects are simple JavaBeans which can remain useful outside of the life
>of a transaction.  In CMP, data has no life outside of a transaction so
>it's impossible to cache data across transactions without creating a
>second layer of data objects.  With Hibernate you can populate a data
>object and simply return it out of the EJB layer.
>
>BTW, even in 1.0, lazy-populated relations work fine.  For a simple
>1-to-1 relationship you will need to use a proxy interface, of course.
>
>Jeff Schnitzer
>je...@in...
>
>
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I've seen that Hibernate is independent from the application server. 
This sounds pretty good if, for example, you want to make a pro and an 
enterprise application.
I've seen also a more important feature about QL, you can easyly join 
tables and order items.
Items deletions/updates seem made better (emulation of delete and update 
SQL clauses).
Ciao,
kiuma