Andrus Adamchik closed CAY-948.
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Resolution: Fixed
works with Cayenne classic and JPA... Still missing Modeler support
> Implement flattened attributes in Cayenne
> -----------------------------------------
>
> Key: CAY-948
> URL: https://issues.apache.org/cayenne/browse/CAY-948
> Project: Cayenne
> Issue Type: Task
> Components: Cayenne Core Library
> Affects Versions: 3.0
> Reporter: Andrus Adamchik
> Assignee: Andrus Adamchik
> Fix For: 3.0
>
>
> We need to support flattened attributes in Cayenne.... JPA has a..econdaryTable annotation, that is essentially a one step flattened attribute and IIRC Andriy implemented a similar mapping scenario long time ago (Cayenne 1.1), only without a Modeler support. So we need to finally make it official, create test cases, modeler support, etc.
> In Cayenne API terms, flattened attribute is an object attribute mapped over a DbRelationship to a joined table column. A few things to consider:
> * Whether to support multi-step flattened attributes
> * Whether to load such attributes eagerly or lazily (JPA's default for..asic is EAGER, but it is configurable...)
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