Frederik Zimmer created OLINGO-890:
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Summary: Client-Proxy: expanding to a contained entity set results
in an error
Key: OLINGO-890
URL: https://issues.apache.org/jira/browse/OLINGO-890
Project: Olingo
Issue Type: Bug
Components: odata4-ext
Reporter: Frederik Zimmer
Expanding a navigation property which navigates to a contained entity set
results in an exception when accessing the navigation property.
AbstractStructuredInvocationHandler assumes that when a ClientInlineEntitySet
is retrieved from the server that the navigation property will return an
EntityCollection, but for contained entity sets the navigation property will
return an AbstractEntitySet.
I see two possibilities:
1. The user has to create a second getter for the navigation property which
returns an EntityCollection. The drawback is that the caller has to know how
the entity was retrieved and then call the appropriate getter.
2. The returned AbstractEntitySet will contain the inline retrieved entities.
Then there is the questions how some methods of AbstractEntitySet behave. At
least some of the methods like count or execute should not make a server
request but operate on the already retrieved collection
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