Comment 1 Tom Ware 2009-07-09 10:27:00 EDT

As promised in the mailing list posting, here is a pointer to where someone would get started adding this code:

Look in the org.eclipse.persistence.jpa component.

The method org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.preProcess() enables this functionality for Entities.

You can see a call to discoverMappedSuperclassesAndInheritanceParents() that does the initial discovery.  Additionally, some of the calls below that call make use of that functionality.

To enable this for Embeddables, similar code would have to be enabled in  org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EmbeddableAccessor.preProcess()

There is likely a bit of refactoring that has to occur to make this occur easily, but I would estimate this to be a medium-difficulty fix.

Comment 2 Tom Ware 2009-07-15 14:58:47 EDT

Setting initial target and priority.  Information about what that means can be found here:

http://wiki.eclipse.org/EclipseLink/Development/Bugs/Guidelines

Comment 3 Peter Krogh 2009-11-27 13:41:21 EST

This bug fix did not make the cut off for 2.0.0. We are deferring the bugs to Future where we can properly sort them all together based on community votes and severity. We will then assign them accordingly to future patch sets and releases.

Comment 4 Peter Krogh 2009-11-30 11:36:50 EST

Changing the priority of the bugs that have been recently triaged to future.  Targetting them to P2 will differentiate them from the P3s that have been triaged into future earlier.

Comment 5 Guy Pelletier 2010-09-16 09:04:40 EDT

Created attachment 179028 [details]
Proposed changes

Adds support for embeddable's to extend mapped superclasses.

Those items from mapped superclasses supported for embeddables are:

- metadata-complete
- exclude-default-mappings
- converters
- attribute-overrides
- association-overrides
- change-tracking
- customizer
- copy policies
- properties

All other metadata (id-class, primary-key etc, listeners etc. ) from an embeddable's mapped superclass are silently ignored.

And now supported on embeddable's:

- attribute-overrides
- association-overrides
- parent-class (for Virtual classes)

Comment 6 Guy Pelletier 2010-09-16 14:48:19 EDT

Bug 283028 - Add support for letting an @Embeddable extend a @MappedSuperclass

Reviewed by: Tom Ware, Michael O'Brien (ongoing)

Modified existing inherited model and InheritedModelJunitTest

Comment 7 Guy Pelletier 2010-09-17 08:08:16 EDT

Just to be 100% accurate, I forgot to add 'attributes' to the supported list of metadata from mapped superclasses.

Comment 8 Eclipse Webmaster 2022-06-09 10:16:33 EDT

The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink

Comment 9 Eclipse Webmaster 2022-06-09 10:23:23 EDT

The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink