Eric,
Could you please send me your sample codes? Thanks.
--- [EMAIL PROTECTED] wrote:
> The problem is (as was pointed out) that when you
> have the remote interface
> you know what class you are going to get. If you are
> not using reflection,
> thst is.
>
>
> There is a workaround for this by using a session
> bean as a factory. The
> workaround is usually satisfing in most cases but
> not perhaps in yours.
>
> Say that there are 3 different entity beans called,
> EmployeePerson,
> ManagerPerson, CEOPerson. You want to get access to
> a person depending on
> his/hers name.
>
> Let all person EJBs RemoteInterfaces implement the
> interface IPerson. And
> the bean classes may or may not subclass PersonBean
> (depending on if you
> want to use inheritence).
>
> Create a session bean with a method
> getPerson(String name):IPerson. The
> method will lookup the persons position and create
> the proper entity bean.
> And return it.
>
> The caller may afterwards downcast the received
> person, depending on the
> needs.
>
> It is a bit messy because the factory will need a
> factory in itself (the
> Home interface). There is however nothing in the way
> of having it as a
> local class, apart from performance etc.
>
> The factory pattern if you are not familiar with it,
> is described in most
> sites dedicated to patterns.
> I also have some code somewhere, mail me if you want
> it.
> /erik
>
> <open source promotion>
> check out www.backsource.org for percolator a useful
> EJB generator to aid
> your development.
> </open source promotion>
>
>
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