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https://issues.apache.org/jira/browse/OLINGO-414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327061#comment-15327061
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Jan Penninkhof commented on OLINGO-414:
---------------------------------------
Santosh patch also does the trick for me. Would appreciate it if it could be
merged into the main branch at some point in time.
> Cannot Filter on Navigation Property
> ------------------------------------
>
> Key: OLINGO-414
> URL: https://issues.apache.org/jira/browse/OLINGO-414
> Project: Olingo
> Issue Type: Bug
> Components: odata2-jpa
> Affects Versions: V2 2.0.0
> Reporter: Simon Carroll
> Attachments: olingo-414-exception.diff, olingo-414-patch.diff
>
>
> We are receiving an error when we try to filter on a navigation property. In
> our solution we have a Notification entity and a User entity, we would like
> to retrieve a specific Notification but only if it is linked to the
> requesting user. This would involve an ODATA request which filters on both
> the UserId and the NotificationId. An example of the URL we are invoking is:
> dspplatform.svc/Notifications?$filter=NotificationId%20eq%204%20and%20UserDetails/UserId%20eq%202
> This returns the following error:
> org.apache.olingo.odata2.core.edm.provider.EdmNavigationPropertyImplProv
> cannot be cast to org.apache.olingo.odata2.api.edm.EdmProperty
> Can you please advise on how to perform filters on a Navigation property as
> we need this as part of our core functionality?
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