Hi Andy,
On Aug 13, 2005, at 12:21 AM, Andy Jefferson wrote:
Hi Craig,
Good point. I was thinking perhaps we should use the same technique
that we have already used to good effect with collections and maps.
What if we define a new attribute on field called field-type, and for
the TCK we put in "...SimpleClass"? Would that allow you to map it?
The issue is that Object types need to be supported, but as you point
out, there's not enough metadata to give an implementation a clue how
to do it.
What do you think? If it's doable, I can raise it to the jdo-experts.
It certainly sounds doable (not looked at the code ...).
With an attribute like that we would have the same info as for an
interface
and so we can do the same as we do there (and so a 1-1 relation
where a class
has an Object field marked as containing SimpleClass would result
in a table
with a FK column across to the SIMPLECLASS table).
That's what I was thinking. I'll raise this issue to the expert group.
Thanks,
Craig
--
Andy
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:[EMAIL PROTECTED]
P.S. A good JDO? O, Gasp!
