Thanks for the info David,
Good to know that the technique has successfully worked in a live
environment.
Myles
> -----Original Message-----
> From: David Sims [SMTP:[EMAIL PROTECTED]]
> Sent: 05 December 2000 12:28
> To: [EMAIL PROTECTED]
> Subject: Re: Readonly Entity Bean Strategy
>
> Myls Jeffery wrote:
> > We have a requirement for a number of static data types in our project.
> > Each type of static data will be provided by a read-only entity bean. I
> > want to ensure that only one instance of an entity bean is created so
> that
> > we do not have multiple entity beans of the same type polling the
> database
> > for the same data.
> >
> > To accomplish this, I was thinking of creating a PK class for each
> entity
> > bean that no matter what ID you pass to it it will treat it as the same.
> > Therefore the EJB server will not create a new instance of the entity
> bean -
> > it will simply return the existing one.
>
>
> I've done this very thing in the past. Home.findByPrimaryKey() always
> ignored the PK that was passed in and instead "found" the same PK every
> time. You should be able to do the same thing with Home.create().
>
> In the situation I was in, we needed a "singleton", so this was the
> strategy we took. Worked out fine. It was a portable, EJB primary key
> generator that was part of the Enterprise Tool Kit.
>
> That's not much information, but I hope it helps.
>
> cheers,
> david
>
>
> --
> David Sims [EMAIL PROTECTED]
> Sims Computing, Inc. www.simscomputing.com
>
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