[rules-users] rules priority

[Esteban Aliverti]

If what you need is to fire just a subset of all the activated rules, you
could use agenda-group attribute instead of activation-group.

Best,

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Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com


2010/9/20 Michael Anstis <michael.anstis at gmail.com>

> You could consider using a "guard condition" e.g.
>
> rule 1
>     when
>         not Solved()
>         <Your rule 1>
>     then
>         insert new Solved();
>         ....
>     end
>
> rule 2
>     when
>         not Solved()
>         <Your rule 2>
>     then
>         insert new Solved();
>         ....
>     end
>
>
> If you only want one rule per "group" then have the grouping as a member of
> the guard condition.
>
> I'm not sure if you can cause the processing of activations to abort.
>
> 2010/9/20 Nadav Hashimshony <nadavh at gmail.com>
>
>>  Hi
>>
>> Im using drools 5 with Guvnor 5
>> i set up 30 Technical rules and build a package to be used by my
>> drools-sample application.
>>
>> my probelm is as followed, some rule may conflict, i want to set up a rule
>> order and if one rule is caught then i want the drools to stop and not
>> continue to try other rules.
>>
>> ive use salience but it hasnt really done the trick.
>>
>> example:
>> my rules:
>>
>> rule "Rule-01"
>> salience 100
>> activation-group "group1"
>> ...
>> System.Out.Println("caught rule 1")
>> ....
>>
>> rule "Rule-02"
>> salience 100
>> activation-group "group1"
>> ...
>> System.Out.Println("caught rule 2")
>> ....
>>
>> rule "Rule-03"
>> activation-group "group2"
>> ...
>> System.Out.Println("caught rule 3")
>> ....
>>
>>
>> rule "Rule-04"
>> activation-group "group2"
>> ...
>> System.Out.Println("caught rule 4")
>> ....
>>
>>
>> actual result: lets say all 4 rules are cuaght, what i will see is as
>> followed
>>
>> ACTIVATION CREATED rule:Rule-01 activationId:Rule-01 [1] declarations:
>> BEFORE ACTIVATION FIRED
>> caught rule 1
>> ACTIVATION CANCELLED rule:Rule-2
>>
>> ACTIVATION CREATED rule:Rule-03 activationId:Rule-01 [1] declarations:
>> BEFORE ACTIVATION FIRED
>> caught rule 3
>> ACTIVATION CANCELLED rule:Rule-3
>>
>>
>> only one rule from each activation-group will be fired, and the first
>> group with the higher salience will fire first.
>>
>> what i would like is it one rule was caught to stop trying? is it
>> possible?
>>
>> Thanks, Nadav.
>>
>>
>>
>>
>>
>>
>>
>>
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>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
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