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From Michael Gentry <blackn...@gmail.com>
Subject Re: Cayenne Modeler Inheritance Warning
Date Fri, 09 Jun 2017 13:09:53 GMT
You were very close!  Exhibit has relationships to subclasses of Facility,
but not Facility itself.  I'll bet that is what is triggering it.

Thanks for the insight,

mrg


On Fri, Jun 9, 2017 at 1:48 AM, Andrus Adamchik <andrus@objectstyle.org>
wrote:

> Does Facility.exhibit point to a sublcass of Exhibit?
>
> Some background:
>
> https://issues.apache.org/jira/browse/CAY-1600
> https://lists.apache.org/thread.html/01f69b73b99651f6ecf96fc24176b0
> e2d4f63d5af08e2f764e6f12bf@1332798063@%3Cuser.cayenne.apache.org%3E
>
> Andrus
>
>
> > On Jun 8, 2017, at 6:30 PM, Michael Gentry <blacknext@gmail.com> wrote:
> >
> > In converting an application from 3.0 to 3.1, have a validation warning
> in
> > CM regarding a "Facility" abstract superclass which defines an "exhibit"
> > relationship which is used by the subclasses.  The warning is:
> >
> > Usage of super entity's relationships 'Facility.exhibit' as reversed
> > relationships for sub entity is discouraged
> >
> > The concrete subclasses have qualifiers similar to:
> >
> > exhibit.itemExhibit.code = "foo"
> >
> > They all utilize the "exhibit" relationship defined in the superclass to
> > identify the correct subclass.  Why is inheriting and using an abstract
> > superclass relationship a warning and discouraged, but inheriting and
> using
> > the abstract superclass attributes are OK and no warning?  I could, of
> > course, re-define these relationships in each subclass, but I'm wondering
> > why this warning is in place and if I'm overlooking something.
> >
> > Thanks,
> >
> > mrg
>
>

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