hi,
thankx for the reply.
i am using WebLogic 5.1 and Oracle 8i.
i have used ORDBMS model ( object model in the database) to design my
database.
which we felt that will help us in scalabilty of the application from the
database end.
but i feel there are no direct support of Oracle User-define type in
WebLogic. using Object Translators is hectic.
i have transactions which are very complex and should update various tables
based on some conditions.
this logic i can apply through Object methods.
but if i use RDBMS model i have to use store procedures.
now the problem is can an Container managed bean be mapped to stored
procedure.
if not how to implement complex logic as in situations like mine.
one more thing can a Container managed bean map to multiple table without
using Views.
these are the few issue we are facing, can u pls clarify me on these issues.
thankx
rav
----- Original Message -----
From: Ashwani Kalra <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, December 28, 2000 12:44 PM
Subject: Re: How to decide on CMP or BMP
> Hi,
> It is preferable to use CMP then BMP.
> You can be forced to use BMP in the following cases
> 1. The columns to be mapped cannot be represented directly by java types
> 2. Mappings and no of tables used in Bean
>
> However these and some other disavantages are being solved with new
versions
> of the app servers. So It also depends on which version of the appserver
you
> are using.
>
> Conclusion :
> It is always best to use CMP.
> In non-trivial cases you may be forced to use BMP
>
>
> Thanks & Regards
> Ashwani Kalra
> Sr. System Associate,
> NIIT Ltd.
>
>
>
>
>
>
>
>
> > ----------
> > From: Ravi Chandra Kumpatla[SMTP:[EMAIL PROTECTED]]
> > Reply To: A mailing list for Enterprise JavaBeans development
> > Sent: Thursday, December 28, 2000 10:24 AM
> > To: [EMAIL PROTECTED]
> > Subject: How to decide on CMP or BMP
> >
> > hi all,
> > i am new to these EJB's. basically i am a DBA in Oracle.
> > i am working on a Portal which uses WebLogic and oracle8i.
> > we have gone through EJB specs and J2EE specs and decided to follow MVC
> > architecture.
> >
> > here the main problem is who to decide on which kind if Entity beans to
> > use. Container managed or Bean managed.
> > though the recommendations say to use Container managed Beans i think
they
> > have lot of disadvantages.
> >
> > can any one tell me in what situation should i use CM Beans or BM Beans.
> > and their relative performance comparisons.
> >
> > can i get any material or comparisons on the web
> >
> > thanks in advance,
> > rav
> >
> >
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> > body
> > of the message "signoff EJB-INTEREST". For general help, send email to
> > [EMAIL PROTECTED] and include in the body of the message "help".
> >
> >
> >
> Visit http://www.NetVarsity.com for online learning
>
>
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