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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