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From "Nikita Timofeev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAY-2369) Compatibility issue with field-based data objects
Date Wed, 27 Sep 2017 11:41:01 GMT
Nikita Timofeev created CAY-2369:
------------------------------------

             Summary: 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
             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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