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https://issues.apache.org/jira/browse/CAY-2369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16182415#comment-16182415
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ASF GitHub Bot commented on CAY-2369:
-------------------------------------
GitHub user stariy95 opened a pull request:
https://github.com/apache/cayenne/pull/243
CAY-2369 Compatibility issue with field-based data objects
See [CAY-2369](https://issues.apache.org/jira/browse/CAY-2369)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/stariy95/cayenne 4.1-nullable-primitives
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cayenne/pull/243.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #243
----
commit f61b163b99733c14ffd7530eb2f3d0dfbdd53960
Author: Nikita Timofeev <stari...@gmail.com>
Date: 2017-09-27T10:05:25Z
Use boxed types for nullable primitive fields
commit 6c871b3f68294a909b5feb573e237cd0fada753e
Author: Nikita Timofeev <stari...@gmail.com>
Date: 2017-09-27T11:11:04Z
Use boxed types for nullable primitive fields
----
> Compatibility issue with field-based data objects
> -------------------------------------------------
>
> Key: CAY-2369
> URL: https://issues.apache.org/jira/browse/CAY-2369
> Project: Cayenne
> Issue Type: Bug
> Affects Versions: 4.1.M1
> Reporter: Nikita Timofeev
> Assignee: Nikita Timofeev
> Labels: pull-request-available
> Fix For: 4.1.M1
>
>
> This one is from
> [dev@list|https://lists.apache.org/thread.html/72ba8d1c42fd9064652e7ff04647383e1777e1326a0ceeffaedfe87c@%3Cdev.cayenne.apache.org%3E].
> Data inserted in _4.0_ can't be updated in _4.1_ if optimistic locking for
> nullable attribute mapped on java primitive type is used. This is because
> version _4.1_ use field-based data objects that store primitive as primitive,
> thus there can't be _nulls_.
> Can be solved by modifying *cgen* templates to use boxed type internally for
> nullable attributes.
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