Alvin,

I have used inheritance where the EJB inherits a class and work fine  but I
have not used class inheriting from ejb. Remember, the EJB within a CMP
context is abstract and does not use the EJB explicitly.


Regards
Glenn


----- Original Message -----
From: "Alvin Wang" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 27, 2002 11:02 PM
Subject: Can I do inheritance on Entity bean in EJB 2.0?


> Hi! I wander of I can do inheritance on Entity bean in EJB 2.0? If yes,
what
> is the phisical meaning of inheritance on Entity bean? Every Entity bean
> represent a table. Does it mean that database tables also have inheritance
> relationship? And is there any difference on CMP and BMP on this?
>
> The reason I am asking is that I am working on a project that takes
several
> kinds of requests from client. We want to model the requests as entity
> beans. So we also want to model a abstract general parent class for
request,
> so all the concrete requests Entity bean will inherit from it. Is it a
> feasible design? will the parent class has a table conresponding to? (I do
> not think so) Is there any sample for inheritance on Entity bean?
>
> By the way, can I do inheritance on Session bean and Message bean?
>
> Any guru can help? Thank you!
>
> Alvin
>
>
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