Once upon a time Oracle developed a rather big, commercial O/R mapping product named "TopLink". The JPA part of this product was open sourced, hosted on java.net, years ago under the name "TopLink Essentials". This is the RI of JPA 1.0, and this is what is bundled with GlassFish v2.
Few months ago, Oracle then decided to publish the complete "TopLink" product (not just the JPA part as with "TopLink Essentials"), under the name "EclipseLink", hosted on eclipse.org. The packaging was changed from "simple" jars to OSGi modules, as usual in the Eclipse eco system. The JPA part contained in "EclipseLink" is the RI of JPA 2.0, and this is what is bundled with GlassFish v3.
As there is no more active "TopLink Essentials" development anymore (Oracle concentrates on "EclipseLink", as GlassFish v3 will be released in autumn), it makes not much sense to write a "TopLink Essentials" driver (so-called "DatabasePlatform"). It makes more sense to write a "EclipseLink" "DatabasePlatform" (driver) if you want to get it bundled in the box.
Regards
Markus
> -----Original Message-----
> From: glassfish_at_javadesktop.org [mailto:glassfish_at_javadesktop.org]
> Sent: Dienstag, 30. Juni 2009 17:32
> To: users_at_glassfish.dev.java.net
> Subject: Re: How to support a new Database in Toplink
>
> Thanks for your answer. But your comment about EclipseLink has somewhat
> confused me. I try to use just things, that are available in the
> Glasfish Reference Implementation. And there is TopLink present, but
> I've never seen EclipseLink. Could you clearify that, please? Thanks.
>
> Markus (too :-) )
> [Message sent by forum member 'atrav99' (atrav99)]
>
> http://forums.java.net/jive/thread.jspa?messageID=353599
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe_at_glassfish.dev.java.net
> For additional commands, e-mail: users-help_at_glassfish.dev.java.net