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Java Forum / Databases / October 2006

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Oracle TopLink + composite mapping

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blochoo - 29 Oct 2006 15:56 GMT
Hello,

I have a little problem with Toplink:

I have a table in Oracle DB:

table T1 {A: integer, B: integer, C: integer}.

I want to have following mapping:

class X { int A; intB;}
class Y{ X objct; int C}

so the objct (of class X) is a composite of class Y, and both of
objects (composite and owner) are in the same table.

Is it possible to make such a mapping in TopLink?

Thanks for every helpful answer.
--
Piotr Bloch
CS @ PUT
Poland
simon.martinelli@gmail.com - 30 Oct 2006 16:45 GMT
Hi,

Yes that's possible.

Map X as Aggregate Mapping.

If you now map Y as "normal" Class Mapping you can choose the
attributes of X to map to the database.

Regards, Simon

> Hello,
>
[quoted text clipped - 19 lines]
> CS @ PUT
> Poland
blochoo - 30 Oct 2006 23:02 GMT
simon.martinelli@gmail.com napisal(a):
> Hi,
>
[quoted text clipped - 6 lines]
>
> Regards, Simon

Thank You, Simon. It solved my problem.

Regards,
Piotr Bloch


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