Anything you could map with TopLink you should be able to map with
EclipseLink although some mappings may exceed the JPA 1.0 specification. I
am not sure exactly how you want to map this so if you could provide more
details I am sure we can help.
If you want configure these advanced mappings in XML you can use an
eclipselink-orm.xml file (instead of the JPA standard one) and leverage
these advanced mappings as well. In the following example the Employee
class uses a BasicCollection mapping.
Thanks Doug. On another note, In Eclipselink 1.0.1 for JPA. Does the
annotation work? I have to use the orm.xml, every time I put annotation
in the code it doesn't seem to work but it works fine with orm.xml? Is
there another setting to say use annotation instead of xml (like in spring