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Re: Owns Destination & Deny
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Re: Owns Destination & Deny


  • Subject: Re: Owns Destination & Deny
  • From: Ramsey Gurley <email@hidden>
  • Date: Fri, 6 Mar 2009 15:19:16 -0500


On Mar 2, 2009, at 3:20 PM, Chuck Hill wrote:


On Mar 2, 2009, at 7:05 AM, David Avendasora wrote:

Hi all, mostly my future self.

When I have a relationship setup that has the following settings:
1) Owns Destination
2) Delete Rule of Deny
3) Inverse relationship is Optional (I think this should be impossible if the object is owned)


I get the following error when I try to delete an instance:

java.lang.IllegalStateException: undo: undo manager is in invalid state, undo was called with too many nested undo groups

I don't know if this impacts anything other than Java Client, but I've run into it several times and every time I search on this, I only find my posts.

Would it make sense to have a validation rule in Entity Modeler that the inverse relationship of an "Owns Destination" relationship cannot be optional?


I can't think of any case where it being optional would be correct. That sounds like a good validation. File 'em Dano.


Chuck

After thinking about this a bit more, I think the problem with the relationship here is the Deny, not the optional reverse. If the whole point of Owns Destination is to delete the child object when its relationship to parent is set to null, then requiring mandatory on the parent relationship defeats the purpose of Owns Destination, no? The relationship could never be set to null... What would be the point of setting Owns then?


Ramsey


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  • Follow-Ups:
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References: 
 >Owns Destination & Deny (From: David Avendasora <email@hidden>)
 >Re: Owns Destination & Deny (From: Chuck Hill <email@hidden>)

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