Frederik Zimmer created OLINGO-1221:
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Summary: Expand on navigation property of derived type not working
Key: OLINGO-1221
URL: https://issues.apache.org/jira/browse/OLINGO-1221
Project: Olingo
Issue Type: Bug
Components: odata4-server
Affects Versions: (Java) V4 4.4.0
Reporter: Frederik Zimmer
I want to expand a navigation property that is defined in a derived type. So
something like this:
http://services.odata.org/TripPinRESTierService/People('ursulabright')/Friends?$expand=Microsoft.OData.Service.Sample.TrippinInMemory.Models.Manager/DirectReports
where Friends returns a Collections of Person which can be a Manager and only a
Manager has a navigation property DirectReports.
Olingo would return an error in this case that Person has no property
DirectReports. The reason is that the type cast is correctly parsed but it is
ignored. In the class ExpandParser Method parseExpandPath the navigation
property is looked up in type but it could be that a type cast in
item.getStartTypeFilter() is defined which contains the derived type that
should be used.
An additional question:
In my understanding the above URL should return all Friends of ursulabright and
for Friends who are of type Manager also the DirectReports should be returned.
Is this correct (the example odata service unfortunately has some problem with
this query)?
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