[teiid-issues] [JBoss JIRA] (TEIID-5559) odata4 NPE when accessing VDB including FK relationship across models

[Ramesh Reddy (Jira)]

    [ https://issues.jboss.org/browse/TEIID-5559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669698#comment-13669698 ] 

Ramesh Reddy commented on TEIID-5559:
-------------------------------------

[~shawkins] Ok, sorry. I think we may be missing the schema import reference, just like vocabularies other schemas can be cross-referenced. I do not remember adding these. Once that is added any namespace qualified access is permissible across these models. So, we would have to make changes to reflect that when Fk is referenced.

> odata4 NPE when accessing VDB including FK relationship across models
> ---------------------------------------------------------------------
>
>                 Key: TEIID-5559
>                 URL: https://issues.jboss.org/browse/TEIID-5559
>             Project: Teiid
>          Issue Type: Bug
>          Components: OData
>    Affects Versions: 8.12.16.6_4
>            Reporter: Marc Shirley
>            Assignee: Steven Hawkins
>            Priority: Major
>
> Receive error [2] when attempting to access table that utilizes a foreign key to another model with URL like [1].  access to the other model (that the foreign key references) works correctly.
> [1] http://127.0.0.1:8080/odata4/fktest/fkmodel/
> [2] 
> JBWEB000309: type JBWEB000066: Exception report
> JBWEB000068: message 
> JBWEB000069: description JBWEB000145: The server encountered an internal error that prevented it from fulfilling this request.
> JBWEB000070: exception 
> org.teiid.core.TeiidRuntimeException
> 	org.teiid.olingo.service.ODataSchemaBuilder.buildMetadata(ODataSchemaBuilder.java:58)
> 	org.teiid.olingo.service.OlingoBridge.getHandler(OlingoBridge.java:54)
> 	org.teiid.olingo.web.ODataFilter.internalDoFilter(ODataFilter.java:228)
> 	org.teiid.olingo.web.ODataFilter.doFilter(ODataFilter.java:100)
> 	org.teiid.olingo.web.CorsFilter.doFilter(CorsFilter.java:80)
> JBWEB000071: root cause 
> java.lang.NullPointerException
> 	org.teiid.olingo.service.ODataSchemaBuilder.addReverseNavigation(ODataSchemaBuilder.java:308)
> 	org.teiid.olingo.service.ODataSchemaBuilder.buildNavigationProperties(ODataSchemaBuilder.java:251)
> 	org.teiid.olingo.service.ODataSchemaBuilder.buildEntityTypes(ODataSchemaBuilder.java:144)
> 	org.teiid.olingo.service.ODataSchemaBuilder.buildMetadata(ODataSchemaBuilder.java:54)
> 	org.teiid.olingo.service.OlingoBridge.getHandler(OlingoBridge.java:54)
> 	org.teiid.olingo.web.ODataFilter.internalDoFilter(ODataFilter.java:228)
> 	org.teiid.olingo.web.ODataFilter.doFilter(ODataFilter.java:100)
> 	org.teiid.olingo.web.CorsFilter.doFilter(CorsFilter.java:80)



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