AW: [OJB-developers] Collections problem..

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

Hi Andrew,

This is very easy to fix!
If you are using OJB in ODMG mode just set all <auto.update> and
<auto.delete> entries to false.

This avoids the double insertion that you noticed already.

This is documented in Tutorial3.html:
http://objectbridge.sourceforge.net/tutorial3.html#cascading

hth,

Th

> -----Urspr=FCngliche Nachricht-----
> Von: Andrew Pietsch [mailto:api...@op...]
> Gesendet: Dienstag, 28. Mai 2002 11:58
> An: OJB Developers mailing list
> Betreff: [OJB-developers] Collections problem..
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> Howdy,
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> I seem to be having a bit of trouble storing collections. =20
> I've got a Site object that contains
> an ArrayList of CollectionPoint objects.  Each=20
> CollectionPoint also has reference back to it's
> parent Site object. When I create a Site and add a single=20
> CollectionPoint to it and persist the=20
> Site, it seems that the CollectionPoint object is being=20
> inserted twice into the database resulting
> in a primary key violation.  I've narrowed it down a little=20
> and it seems that the ObjectEnvelopeTable
> iterates over both the Site and CollectionPoint calling=20
> commit on both.  The problem seems to be that=20
> while persisting the Site, the CollectionPoint is persisted=20
> via storeCollections(..), and=20
> is then persisted again by the ObjectEvelopeTable.
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> This is my first OJB project so I'm not sure if I've screwed=20
> things up.  I checked out of cvs just a=20
> few minutes ago so I should be the latest source.  I've=20
> attached the output trace and my respositry.xml
> just in case I've done something crazy..
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> Also, I was just wondering if references could be implemented=20
>  (theoretically speaking) without using a
> distinct ID field in the referring object, ie My=20
> CollectionPoint must have a Site attribute and a siteId=20
> attribute, I'd love to ditch the siteId.  Please feel free to=20
> call me an idiot if I've overlooked the
> obvious.. I just thought it would be a nice to have.. (c:
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> Keep up the excellent work!!
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> Thanks
> Andrew
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