[rules-users] Rule of rules

[Wolfgang Laun]

For the positive facts ("passed") there is "truth maintenance" (logical
assertion), which is well covered in the "Expert" manual, see Section "Truth
Maintenance with Logical Objects".

Testing pass and failure to pass must be done in a way that avoids premature
firing of the combinations containing negatives. This could be done using
salience or (I think: preferably) using a dedicated agenda group.

-W


2011/5/24 Abhay B. Chaware <Abhay.Chaware at kpitcummins.com>

>  Is it possible to write rule of rules with Drools ? e.g. I write two
> complex rules in drools and then I want a third rule that can be defined to
> process facts
>
> 1.   which passed both rule 1 and rule 2   OR
>
> 2.  which passed rule 1 but not rule 2 OR
>
> 3.  which passed rule 2 but not Rule 1 OR
>
> 4.  which did not pass rule 1 and rule 2 and so on ..
>
> Kind of a new ‘layer’ on top of  drools .. ?
>
>
>
> I can think of a crud way, that is to flag the fact object when it passed
> rule 1 and rule 2 and check the flag in rule 3 .. but am looking for a more
> sophisticated way using drools features ..
>
>
>
> -ahbay
>
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