On Wed, Nov 27, 2013 at 7:59 PM, Niels Charlier <[email protected]> wrote:
> Hi Andrea,
>
>
> On 27/11/13 19:09, Andrea Aime wrote:
> > Hi,
> > I'm wondering if anybody can shed some detail about how local and
> > remote references
> > are handled in app-schema generated GML?
> >
> > My impression is that the in memory model of app-schema uses pointers,
> > so there are
> > no special containment vs reference nodes, but when encoding, the
> > first element encountered
> > gets encoded as containment, and all the subsequent references to the
> > same identifiable
> > object are encoded as references. Is this right?
>
> This is right, however app-schema also supports the WFS 2.0 local
> resolve parameters such as resolve depth, which can be used to encode
> featured chained features as a reference from a certain level anyhow.
> And it is a full reference rather than a short same-page kind of
> reference. I implemented that last year. It can even be used to resolve
> a reference without feature chaining (in which case all types will be
> searched).
>
Very nice. I searched around but could not locate where the valueOf()
mandatory xpath function is managed. Do you have pointers?
>
> >
> > I'm also wondering about remote references, does app-schema has any
> > support for those?
> > Something like, cross feature type references, or references to GML
> > hosted on remote
> > servers?
> Cross-feature types, yes, but remote, no.
>
I see. Have you ever seen usage of true remote usage in any official
application
schema?
Or when they say "remote", they really mean just out of page, but same
server?
Cheers
Andrea
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