Re: Database programming standards

From: Niall Litchfield <niall.litchfield_at_gmail.com>
Date: Fri, 4 Jun 2004 12:45:03 +0100
Message-ID: <7765c897040604044523bca921@mail.gmail.com>

On Fri, 04 Jun 2004 19:49:15 +1000, Nuno Souto <dbvision_at_optusnet.com.au> wrote:
> You're not the only one...
>
> Couple of minor questions for your duh-veloper: when another application
> sharing the same database has to use these rules in the app server,
> where does it get them from?
>
> No, an EJB CANNOT be shared between applications in J2EE. Applications
> in an EJB container run in DIFFERENT JREs and CANNOT share an EJB!

Useful info thanks.

> No, Java communications are slow as a dog.
> No, .NOT is not any better in the same respect.

Oh Nuno, you should know better. What you need is an EJB to do the app specific processing and a web service invoked via soap to handle all the interapp communications and business rules (J2EE and .Net handled ther). Put your business rules in a (probably serialized) web service, your app specific in your EJB, your data in a black box RDBMS, your security via an authentication appliance. naturally you'll need to do all of this with a RAC back end an app server data farm or even grid. That client server stuff that just worked is so 1990s.

bitterly yours

Niall Litchfield
Oracle DBA
http://www.niall.litchfield.dial.pipex.com

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Received on Fri Jun 04 2004 - 07:01:36 CDT