+1. I think this is the right thing to do. I propose that you create the
geometry gml:id with the feature gml:id + "." + propertyName.
app-schema configurations for GML 3.2 commonly use ClientProperty to set
a gml:id on geometries to be schema-valid. Your implementation should
check to see if there is a ClientProperty for an app-schema type, or be
used only for simple features. app-schema unit tests cover gml:id set on
geometries (e.g. Gsml32BoreholeWfsTest:64) so will detect if you break
the ClientProperty behaviour.
Kind regards,
Ben.
On 23/11/17 07:28, Andrea Aime wrote:
Hi,
following up on CITE WFS 2.0 compliance failures, there are a lot of
reports about not having a
id on geometry properties. Which is something reported already in Jira:
https://osgeo-org.atlassian.net/browse/GEOS-6141
Now... given that geometry properties in simple feature encoding are plain,
not linked, would
you mind terribly if we just generate a random id to make the result schema
compliant, without
any attempt to support a GetPropertyValue on the id?
Rationale, simple feature geometries do not have an ID anyways, and while
one could be fabricated
by some smart concatenation of feature id and some tracking of parent
geometries, the scenario itself
does not seem to make sense anyways, the geometry is fully encoded in the
GML anyways (unlike
cases in complex features where the geometry might be shared and referred
to).
Cheers
Andrea
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