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Re: Inheritance and prefetching
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Re: Inheritance and prefetching


  • Subject: Re: Inheritance and prefetching
  • From: Ken Anderson <email@hidden>
  • Date: Fri, 06 Dec 2013 10:00:53 -0500

In ancient times… (and I mean like, 15 years ago)

A back pointing relationship from the subclasses of B to the abstract A (where the to-many relationship ‘toB' is) was necessary for all the plumbing to hook things up when the EOs came back from the prefetch.

Ken

On Dec 5, 2013, at 3:08 PM, Alexis Tual <email@hidden> wrote:

> Hi,
>
> I have 2 single table hierarchies :
> - B1 inherits from B
> - A1 inherits from A (abstract), A1 has a to-many relationship to B, let's call it toBs
>
> is it possible to prefetch this relationship ?
>
> We can't manage to get it work, I'll past the obscure exception tomorrow but can anyone confirm that this kind of prefetch works with EOF ?
> I've also tried ERXBatchFetchUtilities which seems promising "This works much like prefetching with fetch specifications, however this implementation is able to work around inheritance where prefetching fail", but no luck :/
>
> Thanks
>
> Alex
>
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 >Inheritance and prefetching (From: Alexis Tual <email@hidden>)

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