Re: [eclipselink-users] [MOXy] setting bi-directional references during

["polly.c.chang" <polly.c.chang@xxxxxxxxx>]

Hi Matt,

Sure, I'm putting some unit tests together right now.  I'll send you those
when they are ready.

Thanks!
--Polly


Matt MacIvor wrote:
> 
> 
> Hi Polly, 
> 
> Would it be possible for you to send a usecase/example of using a
> Many-To-Many bidirectional relationship with a composite mapping? I'm
> not sure how an object that is the target of a composite mapping could
> ever have more than one owning object in an XML document. 
> 
> I may be missing something obvious, but if you have a usecase for this,
> it's something that we could potentially support. 
> 
> Thanks, 
> 
> -Matt 
> 
> polly.c.chang wrote:
> 
>   Hi Matt,
> 
> We use Composite mappings on many-to-many bidirectional associations also. 
> We do not use the Reference mappings at all.  Would it be possible to have
> a
> future version of Eclipse 1.2 or 2.0 to support setting the back-reference
> on many-to-many Composite mappings?
> 
> Thanks for testing and letting me know that EclipseLink can use private
> accessors for OXM!  
> 
> Thanks,
> Polly
> 
> Matt MacIvor wrote:
>   
>   
>     Hi Polly, 
> 
> The current support in EclipseLink 1.2 wouldn't handle the case of a
> many-to-many backpointer. EclipseLink 1.2 only handles backpointers on
> composite mappings, and since composite mappings are privately-owned,
> the many to many case isn't handled here. The updated support going
> into EclipseLink 2.0 includes support for Reference mappings which
> allows for the many-to-many case. This support will be available in the
> nightly EclipseLink 2.0 builds this week if you'd like to try it out.
> I'll let you know once the code is available. 
> 
> Using method access on your mapping to set the backpointer yourself as
> you described would be a good workaround. I did a quick test and found
> that private and protected getters/setters will work for method access
> if you don't want to make the methods public. 
> 
>     
>   
>   
>   
> 
> 
> 
> 
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> 

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