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From "Pinaki Poddar (JIRA)" <>
Subject [jira] [Resolved] (OPENJPA-2305) Canonical MetaModel class generation should not use inhertence
Date Thu, 28 Mar 2013 15:25:17 GMT


Pinaki Poddar resolved OPENJPA-2305.

    Resolution: Invalid
> Canonical MetaModel class generation should not use inhertence
> --------------------------------------------------------------
>                 Key: OPENJPA-2305
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: criteria
>    Affects Versions:
>            Reporter: Pinaki Poddar
>            Assignee: Pinaki Poddar
>             Fix For: 2.3.0,
> The generated source code for canonical metamodel classes mirrored the same inheritance
hierarchy of the domain classes. This strategy exposed an error that resulted in wrong target
SQL query under the following domain model 
> a) A @MappedSuperClass M defined a primary key field x
> b) The primary key field x is an @EmbeddedId E
> c) An @Entity class D derived from M and navigated to the fields of E via x
> The solution is to generate canonical class as a flattened structure instead
of inheriting from (as is done currently). 

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