[jira] [Commented] (OLINGO-45) ClassCastException on Entity update

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

    [ https://issues.apache.org/jira/browse/OLINGO-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811261#comment-13811261 ] 

Georgi commented on OLINGO-45:
------------------------------

Does that makes sense? Or otherwise, can you advise how to update depending entities?

> ClassCastException on Entity update
> -----------------------------------
>
>                 Key: OLINGO-45
>                 URL: https://issues.apache.org/jira/browse/OLINGO-45
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata2-jpa
>    Affects Versions: 1.0.0, 1.1.0
>            Reporter: Georgi
>            Assignee: Chandan V.A
>
> You might want to doublecheck the logic in 
> org.apache.olingo.odata2.processor.core.jpa.access.data.JPAEntity:write(final Map<String, Object> oDataEntryProperties, final boolean isCreate)
> On line 141 there's an explicit cast to List<ODataEntry>. However I found out that during update, when the property is a 1:1..0 relation to another Entity, the returned type is ODataEntry. And that causes the ClassCastException.
> I managed to solve this for me with a simple if/else block:
> List<ODataEntry> relatedEntries = null;
> if(oDataEntryProperties.get(propertyName) instanceof ODataEntry){
>         relatedEntries = new ArrayList<ODataEntry>();
>         relatedEntries.add((ODataEntry)oDataEntryProperties.get(propertyName));
> } else {
>         relatedEntries = (List<ODataEntry>)oDataEntryProperties.get(propertyName);
> }
> The code is from the 1.1.0-SNAPSHOT master branch HEAD.
> I hope that helps.



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