[news.eclipse.tools.emf] Re: Mapping EObject Objects to Diagnostic Objec

[Ed Merks <Ed.Merks@xxxxxxxxx>]

Felix,

Oops, wrong button. :-P

Comments below.

Ed Merks wrote:
> > Felix 
>
>
> Felix Dorner wrote:
> > Hey,
> >
> > I have read the (too short, but 1000 times better than nothing) 
> > chapter on EMF Validation in the Rough Cuts Book, and have a small 
> > doubt, please correct if I make wrong assumptions.
Too short!  If these things were longer, Dave would have taken another 
year!!
> > I call Diagnostician.eINSTANCE.validate(myContainmentRoot), to 
> > validate my whole model which gives me a tree-like structure 
> > consisting of Diagnostic objects.
> >
> > From a certain Diagnostic object, I can then get the involved model 
> > object(s) via the Diagnostic's getData() method.
> >
> > I'd rather like to have a Map<EObject,List<Diagnostic>>, which would 
> > map a given eObject to all the Diagnostic's it is involved (i.e. its 
> > getData() contains the eObject).
Sounds like a a helper method you could write...
> > Is something like this available through the framework, or do I need 
> > to manually compute the Map based on the Diagnostic tree?
Manually.
> > What's the role of the "context" map argument in the Diagnostician's 
> > validate() methods? Unfortunately there's no information in the Javadoc.
Generally it's a place where complex constraints can cache information 
so that  expensive computations  don't need to be duplicated across 
several constraint that might need the same information.
> > Thanks,
> > Felix