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From "Andy Jefferson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JDO-403) JDO2 Annotations
Date Tue, 26 Jun 2007 20:01:26 GMT

    [ https://issues.apache.org/jira/browse/JDO-403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12508309

Andy Jefferson commented on JDO-403:

> 2. I'd like to talk about mapping org.apache.jdo.tck.pc.mylib.PCRect as an embedded field.
PCRect includes 
> two PCPoint instances, so you have to map the embedded PCPoint instances as embedded-embedded

Agreed - nested embedded PC fields aren't catered for in what was provided, and your example
(but using PCRect/PCPoint as nested embedded) demonstrates how it could be done for 1-level
of nesting. XML handles this fine since you can have <embedded> within a <field>
recursively (down to multiple levels). Annotations have some strange limitation on recursing
too (in addition to the other strange limitations), so not sure if you'll be able to get multi-level
recursion (like XML supports). Its the same issue we have with @FetchGroup and @FetchField

> JDO2 Annotations
> ----------------
>                 Key: JDO-403
>                 URL: https://issues.apache.org/jira/browse/JDO-403
>             Project: JDO
>          Issue Type: New Feature
>          Components: api2
>    Affects Versions: JDO 2 final
>            Reporter: Andy Jefferson
>            Assignee: Michelle Caisse
>             Fix For: JDO 2 maintenance release 1
>         Attachments: embedded.patch, jdo_2_1_annotations.jar
> It would be desirable for JDO2 to have its own set of annotations. We have developed
a set within JPOX that would likely serve as a starting point for such a set. In my opinion
they should be
> 1. Split into javax.jdo.annotations.jdo and javax.jdo.annotations.orm
> 2. Move ORM attributes from some of the JDO annotations and have a ORM annotation.

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