FeatureCollection should be encoded with multiple featureMember elements not
one featureMembers element to support xlink:href
-----------------------------------------------------------------------------------------------------------------------------
Key: GEOT-3046
URL: http://jira.codehaus.org/browse/GEOT-3046
Project: GeoTools
Issue Type: Bug
Components: ext xml-xsd
Affects Versions: 2.6.4, 2.7-M0
Reporter: Ben Caradoc-Davies
GeoTools (and thus GeoServer) encodes a FeatureCollection as (for example):
{code}
<wfs:FeatureCollection>
<gml:featureMembers>
<gsmlMappedFeature gml:id="mf.1" />
<gsmlMappedFeature gml:id="mf.2" />
<gsmlMappedFeature gml:id="mf.3" />
</gml:featureMembers>
</wfs:FeatureCollection>
{code}
In this skeleton, the features are empty, but if they are encoded inline, it is
possible that, because of associations, a feature (e.g. mf.3) might have been
already been encoded inline as a property of an earlier feature before it is to
be returned as a top-level feature in its own right. In this case, the feature
should be encoded as an internal xlink:href link on the enclosing property
type, because gml:id's cannot be duplicated in a document. This is only
possible if featureMember is used. The response then becomes:
{code}
<wfs:FeatureCollection>
<gml:featureMember>
<gsmlMappedFeature gml:id="mf.1">
...
<gsmlMappedFeature gml:id="mf.3" />
...
</gsmlMappedFeature
</gml:featureMember>
<gml:featureMember>
<gsmlMappedFeature gml:id="mf.2" />
</gml:featureMember>
<gml:featureMember xlink:href="#mf.3" />
</wfs:FeatureCollection>
{code}
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