[jira] [Resolved] (OLINGO-981) Binding operation null on to one

["Ramesh Reddy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OLINGO-981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ramesh Reddy resolved OLINGO-981.
---------------------------------
    Resolution: Fixed

Commited the fix with https://git-wip-us.apache.org/repos/asf?p=olingo-odata4.git;a=commit;h=37fe8e19b082766f8833ae507f446a934abf42c6

> Binding operation null on to one
> --------------------------------
>
>                 Key: OLINGO-981
>                 URL: https://issues.apache.org/jira/browse/OLINGO-981
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata4-server
>    Affects Versions: (Java) V4 4.2.0
>            Reporter: Héctor Navarro
>            Assignee: Ramesh Reddy
>             Fix For: (Java) V4 4.3.0
>
>
> Apache Olingo isn't compliant with OData 4 feature "For nullable single-valued navigation properties the value null may be used to remove the relationship". 
> I believe if the navigation property is a single entity (to one relationship) and it is defined as nullable, it can be null, as sais at OData documentation ("For nullable single-valued navigation properties the value null may be used to remove the relationship.").
>  
> As example, we can use org.apache.olingo.server.core.deserializer.json.ODataJsonDeserializerEntityTest.bindingOperationNullOnToOne():
>  
>   @Test
>   public void bindingOperationNullOnToOne() throws Exception {
>     String entityString =
>         "{\"PropertyInt16\":32767,"
>             + "\"PropertyString\":\"First Resource - positive values\","
>             + "\"NavPropertyETTwoPrimOne@odata.bind\":null"
>             + "}";
>     expectException(entityString, "ETAllPrim",
>         DeserializerException.MessageKeys.INVALID_NULL_ANNOTATION);
>   }
>  
> I believe that if we define NavPropertyETTwoPrimOne as nullable, it shouldn't throw INVALID_NULL_ANNOTATION exception. 



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