I think that you can explore the options already suggested:

- guard condition
- agenda group

and also:

- no-loop, if you happen to have any rule looping around itself
- drools.halt( ) in the consequence, if you want to completely halt the execution when a given rule matches.

Cheers,
Leo.

2010/9/21 Esteban Aliverti <esteban.aliverti@gmail.com>

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,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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

2010/9/20 Michael Anstis <michael.anstis@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@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.

_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users

_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users

_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users

_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users