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From Nikita Timofeev <>
Subject Re: Cayenne 4.1.M1 problem
Date Thu, 16 Nov 2017 11:21:43 GMT
Hi John,

I've noticed this too, maybe we should change cgen templates to use
Object type exactly as set in the model. After all it is confusing by
itself regardless problem you mentioned.
As for treating zero as missing PK, this can be harder as logic around
there looks fragile to me.

On Fri, Nov 10, 2017 at 8:10 PM, John Huss <> wrote:
> I've found another issue with 4.1.M1 through my unit tests.  If you have:
> 1) modeled a primary key as an ObjAttribute, like customerPK
> 2) modeled it as an object type, like java.lang.Long
> 3) are using the Cayenne-Generated (Default) PK generation strategy
> Then Cayenne won't generate any PKs for the entity and will just use zero
> over and over.  This can be worked around by switching the attribute's type
> to a primitive (like long).
> The reason for this is that the entity template will generate the field as
> a primitive long even though it was modeled because as java.lang.Long
> because it knows that this attribute is mandatory.
> I'm ok with the template as is, but ideally the runtime would do the right
> thing in this case and still generate PKs instead of using zero.

Best regards,
Nikita Timofeev

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