[news.eclipse.tools.emf] Re: fastest way of accessing position, predeces

[Ed Merks <merks@xxxxxxxxxx>]

Philipp,

This sounds little more like 
eObject.eContainer().eContents().indexOf(eObject) but I don't know OCL...


Philipp W. Kutter wrote:
> Yes, exactly. I use OCL for it:
>
> parent.elements->indexOf(self)
>
>
> I somehow feel, this is not the optimal way...
>
> Best, Philipp
>
>
> Ed Merks wrote:
> > Philipp,
> >
> > So you're doing something like this?
> >
> >     List<?> values =
> >     (List<?>)eObject.eContainer().eGet(eObject.eContainmentFeature());
> >     int index = values.indexOf(eObject);
> >
> > And then incrementing or decrementing index and checking it abounds 
> > the 0 or value.size()?
> >
> >
> > Philipp W. Kutter wrote:
> > > Hi, Everybody.
> > > I tried several ways to derive position, predecessor, and successor of
> > > lists in earlier projects.
> > >
> > > What is the best way doing this?
> > >
> > > I remember starting with the EObject, finding its containing 
> > > feature, geting the EList like this, and then looking it through.
> > >
> > >
> > > Is there a faster, easier way?
> > >
> > > Best, Philipp