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Re: Problem with many to many relation involving a abstract class
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Re: Problem with many to many relation involving a abstract class


  • Subject: Re: Problem with many to many relation involving a abstract class
  • From: Wolfram Stebel <email@hidden>
  • Date: Fri, 08 Apr 2005 09:06:00 +0200

Hi all,

i have a support case with apple, where they confirm that there is a bug
with making recursive n:m relations between abstract base classes in
combination with vertical inheritance. Nothingtheless it works with
horizontal inheritance.
For those who are interested: i have a sample project i would share with
you, but i dont want to spam it to the list.

regards
Wolfram

Am 07.04.2005 19:54 Uhr schrieb "James Cicenia" unter <email@hidden>:

> I guess I don't understand what the relationship is supposed to
> accomplish then.
> Those concrete subclasses shouldn't need to be commingled and if so,
> there are
> other ways to do it with arrays.
>
> On Apr 7, 2005, at 12:08 PM, Florijan Stamenkovic wrote:
>
>> Could single table inheritance be the solution???
>>
>>
>> On Apr 07, 2005, at 18:30, James Cicenia wrote:
>>
>>> Hello -
>>>
>>> I could be wrong, but making the relationship to an abstract entity
>>> might not
>>> be possible. I would trying the relationships to BA and CA instead.
>>>
>>> HTH
>>> -James


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References: 
 >Re: Problem with many to many relation involving a abstract class (From: James Cicenia <email@hidden>)

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