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https://issues.apache.org/jira/browse/OLINGO-736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988378#comment-15988378
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Serban Petrescu commented on OLINGO-736:
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[~chrisam] The problem is that Java primitive types (int, double and so on) may
not be null. So if the user wants to have a null property, he should use the
corresponding wrapper type (Integer, Double and so on). I am not sure what else
we can do in case we want to set a primitive property to null apart from
throwing an exception (how I did it now) or simply ignoring it. Another option
would be to set the primitive property to a default value (e.g. 0) but I think
that would be "bad".
> JPAEntity does not update null values
> -------------------------------------
>
> Key: OLINGO-736
> URL: https://issues.apache.org/jira/browse/OLINGO-736
> Project: Olingo
> Issue Type: Bug
> Components: odata2-jpa
> Affects Versions: V2 2.0.4
> Environment: Windows 7 64bit, Google Chrome 43.0.2357.134, JDK
> 1.8.0_51
> Reporter: Reinhard Fuchs
> Assignee: Chandan V.A
> Priority: Minor
> Attachments: OLINGO_736.patch
>
>
> In "JPAEntity.setProperty" there is an condition regarding null values ("if
> (entityPropertyValue != null) ". This condition prevents database simple type
> values being updateted with null value. According the OData Specification in
> Point 3.3 (http://www.odata.org/documentation/odata-version-2-0/operations/)
> this should work.
> Please complete this condition with an else:
> else {
> method.invoke(entity, entityPropertyValue);
> }
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