Javadogs,There is no way to specify a constraint except on the columns mapped to fields in a class. So, there can be a foreign key defined for the join columns or for the mapped columns but there is no way to define a unique or primary key constraint on multiple columns in a join table.
I can't see how to do this easily. Is this even an issue? Anyone else? Craig 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!
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