Re: [mdt-ocl.dev] First shot at impact analyzer doc

[Axel Uhl <eclipse@xxxxxxxxxxxxxxxxxx>]

Hi Ed,

thanks for reviewing this.

> I think it would be much easier to understand with the aid of some
> Object Diagrams. These would show the relative cardinalities and so
> might enable me to understand how many of what I need for a suite of OCL
> expressions. It was very unclear to what extent I need multiple event
> managers. Perhaps you could consider three scenarios: minimal single
> expression impact, multiple expression impact, and only then move on to
> the flexible/confusing variation in impact assessment.

Separating by scenarios sounds like a good idea. I'll try to work that in.

> I could not understnad the EMF edior integration at all. This clearly
> needs at least a screen shot and possibly some Object Diagrams too.

Screen shot of an editor or screen shot of the code showing how to 
implement the integration?

> What is the problem with derived properties? Isn't this an easier to fix
> than document problem?

Not so easy. Take a look at how the impact analyzer traced back 
OperationCallExp expressions. Like for those, PropertyCallExp in 
conjunction with OCL-defined properties can incur recursions. Tracking 
the recursion stack during impact analysis according to our 
understanding and the way the code is currently structured will have to 
be specific to either OperationCallExp or PropertyCallExp. Documenting 
the issue took about two minutes. I have a student working on a clean 
solution to the problem since a few weeks...

Best,
-- Axel

> Thanks for starting on this.
>
> Regards
>
> Ed
>
> On 15/02/2011 15:52, Axel Uhl wrote:
> > FYI: I've added references/overview/advanced/impactAnalyzer.html and
> > linked to it from toc.xml. It is a first shot at incorporating some
> > documentation about the new impact analyzer functionality in the
> > org.eclipse.ocl.doc-deliver help contents. It would be great if
> > someone could review.
> >
> > Thanks and best,
> > -- Axel
> > _______________________________________________
> > mdt-ocl.dev mailing list
> > mdt-ocl.dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/mdt-ocl.dev
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 10.0.1204 / Virus Database: 1435/3456 - Release Date: 02/20/11
> _______________________________________________
> mdt-ocl.dev mailing list
> mdt-ocl.dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/mdt-ocl.dev