[jira] [Resolved] (OLINGO-629) No support for ENTITY for EdmMultiplicity.MANY in FunctionImport

["Christian Amend (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OLINGO-629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christian Amend resolved OLINGO-629.
------------------------------------
       Resolution: Won't Fix
    Fix Version/s: V2 2.0.4

Hi Alex,

 I assume this is completed. If not please reopen.

Best Regards,
Christian

> No support for ENTITY for EdmMultiplicity.MANY in FunctionImport
> ----------------------------------------------------------------
>
>                 Key: OLINGO-629
>                 URL: https://issues.apache.org/jira/browse/OLINGO-629
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata2-core
>    Affects Versions: V2 2.0.3
>            Reporter: Alex
>            Assignee: Christian Amend
>            Priority: Blocker
>             Fix For: V2 2.0.4
>
>
> We have a client that consumes OData by calling functions like search() that should return a list of entities
> <FunctionImport Name="Search" ReturnType="Collection(Feed.Bundle)" EntitySet="Bundles" m:HttpMethod="GET">
> <Parameter Name="searchTerm" Type="Edm.String"/>
> </FunctionImport>
> the FunctionImport declared as
>                 List<FunctionImportParameter> parameters = new ArrayList<>();
>                 parameters.add(new FunctionImportParameter().setName("searchTerm").setType(EdmSimpleTypeKind.String));
>                 return new FunctionImport().setName(name)
>                     .setParameters(parameters)
>                     .setReturnType(new ReturnType().setTypeName(ENTITY_TYPE_FEED_BUNDLE).setMultiplicity(EdmMultiplicity.MANY))
>                     .setEntitySet(ENTITY_SET_NAME_BUNDLES)
>                     .setHttpMethod(ODataHttpMethod.GET.name());
> When I do EntityProvider.writeFunctionImport(... i got exception that Array cannot be converted to Map.
> I looked through the code and there are no support for serializing entities in function import 
> https://github.com/apache/olingo-odata2/blob/6fd6f064d5d8ed97cd914b1378e988655270533a/odata2-lib/odata-core/src/main/java/org/apache/olingo/odata2/core/ep/AtomEntityProvider.java#L343
> by the way, other code rely on that feature, for example
> https://github.com/apache/olingo-odata2/blob/2636dd5f79186003b9d1087ed03586efd7687f24/odata2-jpa-processor/jpa-core/src/main/java/org/apache/olingo/odata2/jpa/processor/core/ODataJPAResponseBuilderDefault.java#L317
> it won't work
> Is that expected behavior or just not implemented yet?
> the client uses MS implementation of OData maybe returning entities is not a standard feature but anyway jpa builder will fail too
> please advise any solutions (i also consider to write servlet filter and process function imports manually..)
> thanks,
> alex 



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