WFS 1.1.0 and WFS 2.0 Schemas and Complex Features

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WFS 1.1.0 and WFS 2.0 Schemas and Complex Features

Nuno Oliveira-3

This is about this issue:

The referenced mailing list discussion is about being able to have multiple workspaces with the same name space, this is another issue.

The issue here is that when creating a XML schema for complex features in the context of a virtual service only the feature types belonging to that feature type will be used, hence chained features of other workspaces will have a NULL prefix:
This issue should affect WFS 1.1.0 and WFS 2.0.

A possible solution for this is to iterate over all complex type properties and extract the chained feature types and add them to the schema. This raise several technical questions that need to be investigated:
  • is it actually possible to find the chained features of a complex feature by simply looking at is properties ? I think so based on the property name or at least we can find the associated workspace and use all the features of that workspace.
  • what is the best way to access other workspaces elements in the context of a virtual service ? The raw catalog ?
  • allowing feature types of a another workspace to be use in the context of another workspace virtual service is acceptable ? The user will be awre of this when setting up the security rules but apart from that I guess this is fine.
This fix will need to be made in WFS 1.1.0 and WFS 2.0. Currently I don't think app-schema as a test case with a complex feature that chain features of another workspace, so a test case will need to be created by this (I guess the stations use case can be extend for this).

Opinions ?


Nuno Oliveira
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