I think what the EJB spec does not provide is a means to represent polymorphic
structures. For examples how would you define a finder method that returns all
Party beans including Individual beans?
"Laird J. Nelson" wrote:
> Rickard �berg wrote:
>
> > Laird Nelson wrote:
> > > Entity beans are not permitted to inherit from other entity beans. This
> > > is one of the major shortcomings of the specification.
> > EntityBeans, or any beans for that matter, are
> > indeed allowed to make use of implementation reuse through inheritance,
> > just as Thierry is doing, but they're not allowed to do interface
> > inheritance.
>
> First, apologies to Thierry for my apparently giving the wrong advice.
>
> Phew; I'm glad I'm wrong, because that apparently means I CAN do this after
> all:
>
> public class Party implements EntityBean {
>
> }
>
> public class Individual extends Party {
>
> }
>
> I sure *thought* I couldn't. I *thought* that's what the spec. was saying. Oh
> well; learn something new every day.
>
> Cheers,
> Laird
>
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