Good afternoon Simon:
Thanks for supporting Ben, I think he managed to make his point already.
To review a few notes from earlier discussion on FeatureCollection....
As I understand it these discussions stalled due to noticing two things:
- FeatureCollection was not defined in the ISO specification (when we
got our hands on it)
- the needs of the OGC Reference Model (ie an aggregation association)
could be represented by a FeatureType as it stands
- the FeatureType for a collection could contain an association
describing the contents. The association would have a name
("MappedFeature" in Ben's example) the type of that association would
capture the nature of the relationship (temporal, aggregation etc) and
the nature of the content (ie "gsml:MappedFeatureType" in Ben's
example).
Reviewing project history
(http://docs.codehaus.org/display/GEOTOOLS/Feature+Model+Proposal) I
found this described as:
- FeatureCollectionType.getMemberDescriptor()
- and this was viewed as formalization of an association that should
already be documented by FeatureType
- FeatureCollection is now acting as a "query result" only - so no
FeatureType is available to document matters as described above
So here is a solid recommendation for Ben:
- Add a FeaturCollection.getDescriptor() to capture this information
- The name of the association would be getDescriptor().getName()
- The nature of the association would be captured as getDescriptor().getType()
- The member type would be captured as getSchmea() - would then be
defined as getDescriptor().getType().getRelatedType()
Jody
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