[rules-users] Use only first matching rule

[Chris Woodrow]

Hi,
The attribute 'activation-group' might be what you are lookiing for:
http://downloads.jboss.com/drools/docs/4.0.3.15993.GA/html/ch06s05.html#d0e3029

Chris

2007/10/30, Dr. Gernot Starke <gs at gernotstarke.de>:
>
> Georgy,
>
> one (simple) way to achieve this is to assert a "stop"-fact on the
> right-hand-side
> of the executing rule (e.g. by setting an appropriate attribute)  AND
> querying that attribute on the LHS of every rule.
>
> Example (pseudo-code)
>
> rule 1
>    when (business-conditions...)
>         st: StopFact ( done == false )
>    then
>          st.setDone( true ); // make ALL other rules fail
>          // all other actions...
> end
>
> IMHO this is expressive in a way that the "single-rule-only" approach
> is clearly visible in all rules...
>
> But: Don't forget to set the StopFact to "not-done" after evaluation...
>
> regards from Cologne,
> Gernot
>
>
> Am 30.10.2007 um 08:21 schrieb nechukin:
>
> >
> > Hi,
> >
> > I'm looking into the Drools engine for our application, and looks
> > like it's
> > satisfies the reqirements. The only thing I haven't found still is a
> > following conflict management model:
> >
> > If rule_1 (with highest salience) is applicable, STOP applying another
> > rules.
> >
> > So the essence is that only 1 or 0 rules should be applied for the
> > particular entity, not 2 or more.
> >
> > I'm sure this is supported by engine. Where to look? Tried to scan
> > ConflictResolving section, but look like it is only about the rules
> > application order, not more...
> >
> > Thanks,
> > Georgy
> > --
> > View this message in context: http://www.nabble.com/Use-only-first-
> > matching-rule-tf4710521.html#a13464084
> > Sent from the drools - user mailing list archive at Nabble.com.
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
>
> Dr. Gernot Starke
> Doing IT Right
>
> ---
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> gs at gernotstarke.de,
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