Hmm, that's very strange. Now the double deletion isn't happening. I don't
think I changed anything relevant but I can't make it happen now. Oh well,
never mind.
On Thu, Apr 15, 2010 at 12:32 PM, Bryan Lewis <jbryanlewi..mail.com> wrote:
> I have an entity Quote with a to-many relationship to QuoteCountry, and a
> cascade delete rule. When I delete a quote object, Cayenne attempts to
> delete the QuoteCountry objects twice, I suspect because I also have a
> flattened relationship quote.countries (Quote -> QuoteCountry -> Country).
>
> I was googling for previous reports of this and found none, but I did come
> across an old copy of Cayenne's DataContext.java that explicitly checked for
> deleting twice in the presence of a flattened relationship.
>
> Normally this double deletion might not be noticed, but it throws an
> OptimisticLockException if optimistic locking is enabled on the Quote
> entity. My current work-around is to disable OL on this entity only, which
> isn't a bad work-around for me. BatchAction does:
>
> int updated = statement.executeUpdate();
> if (useOptimisticLock && updated != 1) {
> //...
> throw new OptimisticLockException(...);
>
>
This archive was generated by hypermail 2.0.0 : Thu Apr 15 2010 - 14:44:27 EDT