Warren Lynn wrote:
> Is there a simple way to ensure that values of a persistent slot must be
> unique? Namely, when a instance is persisted (either with the plain
> make-instance or at the end of a transaction), an error of condition will be
> thrown if the slot value is not unique. Thank you.
Hi,
Is there a simple way to ensure that values of a persistent slot must be
unique? Namely, when a instance is persisted (either with the plain
make-instance or at the end of a transaction), an error of condition will be
thrown if the slot value is not unique. Thank you.
Warren
_
