AW: [OJB-developers] deleting objects from an m:n association

[Mahler T. <tho...@it...>]

Hi Ulrich,

> -----Urspr=FCngliche Nachricht-----
> Von: Ulrich Buettgen [mailto:ubu...@ya...]
> Gesendet: Montag, 25. Februar 2002 15:18
> An: obj...@li...
> Betreff: [OJB-developers] deleting objects from an m:n association
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> Hi all,
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> I'm looking for a way to delete objects from an m:n association. The
> delete Testcase in MtoNmapping.java only shows how to delete=20
> a project in
> a person<->project association but not how to delete the association
> itself (all persons and all project should remain in the database).
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> Any ideas or hints?
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If you are using m:n mappings that are transparently mapped, you can't
access the association as a separate entity.
That's why it is called transparent.

But you can of course define an additional class MyAssociation mapped =
on the
M:N intermediary table.=20
having this class you may add or delete association entities
programmatically!

There is a sample for an m:n association class test.ojb.broker.Role.

HTH,=20
Thomas

> TIA
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> Uli
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