Websphere/visualage also allows entity bean relationship mappings via VAJs persistance tools - check out the websphere or visual age developer domain websites for more information.
>From: Krishnan Subramanian <[EMAIL PROTECTED]>
>Reply-To: Krishnan Subramanian <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: CMP entity bean relationships in EJB 1.1
>Date: Wed, 28 Nov 2001 14:31:43 +0100
>
>Christopher,
>
>EJB 1.1 did not mandate relationships between entity beans.
>
>However some AppServer vendors (such as us) have implemented
>this in our products. Our 4.5.x version of the AppServer supports
>all the relationships you would expect (one: to-one, to many,
>many-to-many etc with your own preferences for navigability
>as well i.e., unidirectional/bi-directional etc).
>
>This is pretty much how the EJB 2.0 specification defines
>relationships between entity beans as well. So moving to
>the 2.0 specification (if and when necessary) will be a relatively
>painless process.
>
>For resources on this topic, you can check out our online
>documentation at:
>http://www.borland.com/techpubs/books/appserver/appserver45/ejb-programmers/entity-beans.html#999808
>(in the section titled "Object relational mapping concepts"
>
>-krish
>
> > -----Original Message-----
> > From: A mailing list for Enterprise JavaBeans development
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Jozsa Kristof
> > Sent: Tuesday, November 27, 2001 4:24 PM
> > To: [EMAIL PROTECTED]
> > Subject: CMP entity bean relationships in EJB 1.1
> >
> >
> > Ok, the subject tells most of it.. My question is, what kind of
> > relationships can I build between my entity beans using an application
> > server which supports EJB 1.1 but not EJB 2.0?
> >
> > I've seen a demonstration ('EJB Design Strategies and Performance
> > Optimizations' in pdf) by Mr. Ed Roman, where he talks about a 'graph of
> > related entity beans', eg. 'An Order has a Customer, which has an
> > Address..'. Is such kind of relationships implementable using EJB 1.1, or
> > they exists only in EJB 2.0? Can anyone show me any design pattern, basic
> > example, tutorial, or any resource on that very topic?
> >
> > Regards,
> > Christopher Jozsa
> >
> > --
> > .Digital.Yearning.for.Networked.Assassination.and.Xenocide
> >
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> >
>
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