Frederik Zimmer created OLINGO-825:
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Summary: Create entities of derived types - ODataJsonDeserializer
ignoring odata.type
Key: OLINGO-825
URL: https://issues.apache.org/jira/browse/OLINGO-825
Project: Olingo
Issue Type: Bug
Components: odata4-server
Affects Versions: (Java) V4 4.0.0
Reporter: Frederik Zimmer
I have an entity which is linked to a collection of entities of a base type.
Something like this:
<EntityType Name="MyBaseType" Abstract="true">
[...]
</EntityType>
<EntityType Name="DerviedTypeA" BaseType=" MyBaseType ">
[...]
</EntityType>
<EntityType Name="DerviedTypeB" BaseType="MyBaseType ">
[...]
</EntityType>
<EntityType Name="A">
[...]
<NavigationProperty Name="params" Type="Collection(MyBaseType)"/> </EntityType>
A deep insert of the entity A and the entity set params is done. The entity set
contains entities of type DerviedTypeA and DerviedTypeB. The request contains
odata.type annotations which specify the correct type of the entities. The
ODataJsonDeserializer ignores the odata.type annotations and then tries to
create DerviedTypeA and DerviedTypeB entities as entities of type MyBaseType
and therefore complains that there are more properties than expected.
The spec says that the odata.type annotation must be present if "The type is
derived from the type specified for the (collection of) entities or (collection
of) complex type instances" as there is no other way to know the correct type.
The ODataJsonDeserializer should not ignore the odata.type annotations.
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