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Re: [eclipselink-users] Question with ManyToMany relation
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2008/10/8 James Sutherland <jamesssss@xxxxxxxxx>:
>
> This seems a little odd, if B's primary key is both 1B ad 2B, then how can
> the join table only have 1B? Is 1B unique, if so then why do you require 2B
> in the primary key?
>
> In general EclipseLink does support using alternate keys in a m-m, but JPA
> does not. You can edit/define the ManyToManyMapping using a
> DescriptorCustomizer and the code API. Just add only the 1B field, however
> if 1B is not unique, I'm not sure how you intend this to function.
>
>
>
> john arevalo wrote:
>>
>> Hi list,
>>
>> I have 2 Entities (Mapped from AS400)
>>
>> TableA:
>> field1A
>> field2A
>> field3A
>> primary key(field1A,field2A,field3A) --- TableAPK @EmbeddedId
>>
>> TableB:
>> field1B
>> field2B
>> primary key(field1B,field2B) --- TableBPK @EmbeddedId
>>
>> next entity is relationship ManyToMany between TableA and TableB
>>
>> TableAB
>> field1B
>> field1A
>> field2A
>> field3A
>> primary key(field1B,field1A,field2A,field3A)
>>
>> How can i create EntityAB? 3rd table only have field1B as related
>> field with TableB.
>>
>> Thanks for your replies.
>>
>> Regards,
>> --
>> John Arévalo
>> GNU/Linux User #443701
>> http://counter.li.org/
>>
>
>
> -----
> ---
> http://wiki.eclipse.org/User:James.sutherland.oracle.com James Sutherland
> http://www.eclipse.org/eclipselink/
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> --
> View this message in context: http://www.nabble.com/Question-with-ManyToMany-relation-tp19862493p19879353.html
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Thanks for your reply James,
AS400 is extremly odd, i can't alter this poor structure.
i solved temporally with NamedQuery in order to build my
getTableBCollection Method,
Regards
--
John Arévalo
GNU/Linux User #443701
http://counter.li.org/
