[rules-users] "Negative" Rules

[Wolfgang Laun]

Have you looked at insertLogical()?

"Changes made" is a very general term, could be anything...
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-W


2010/12/15 Diego San Esteban <diego.sanesteban at coremain.com>

>  Greetings,
>
>
>
> How is it possible to implement a "rollback" in the KB?
> Suppose that when retracting a fact, I want to undo the changes made.
> Writing a negative (opposite) rule isn't efficient, it means declaring the rule twice effectively. Also the negative rule is usually using lots of OR’s and NOT's which isn't fast.
>
>
> Any help?
>
> Thanks
>
>
>
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