I don't know much about drools, am still evaluating drools, we have a similar scenario that as soon as a rule is satisfied, should not check for other rules.

looking at the manual for activation-group , my understanding is that  if  you have 10 rules under same activation group always the one with high salience will fire ignoring other rules. (correct me if i am wrong.)

Probably we need to set some flag to check whether the previous rule is processed or not.

2009/4/20 Edson Tirelli <tirelli@post.com>

   Take a look at the manual on "activation-group"s. They allow you to do that.

   Also, you can call fireAllRules(1) to fire only one rule, in case your whole rulebase is like that.

   []s
    Edson

2009/4/19 Manish1985 <pramanish@gmail.com>

Hi All,

Assume that following is the case,

rule "Rule1"

       when
               t:Test(status==10)
               Test(testValue > 90)

       then
               t.percent=5;
                         modify(t);

end


rule "Rule2"

       when
               t:Test(status==10)
               Test(testValue> 80)

       then
               t.percent=10;
                         modify(t);

end
rule "Rule3"
       when
               t:Test(status==10)
               Test(testValue  > 50)
       then
               t.percent=15;
                         modify(t);
       end

Here, based on each condition i will assign percentage value.
Assume that testValue is 100 and status is 10 so it will be evaluated true
for each rule
but i dont want that. i want Rule1 to be evaluated and then it should stop
executing other rules other wise percetage value will be different from what
i want.
(15 instead of 5).

I can do this by adding one more condition in every rule like
Test(percent==0)

and initially i will intialize Test.percent by zero so only first Rule will
be evaluated/executed.

But is there any other way apart from these?

One more thing is that in decision table i want to add OR between two
conditions.
How can i do that? please give me example for doing that.

Thanks a lot in advance.

Regards,
Manish

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--
 Edson Tirelli
 JBoss Drools Core Development
 JBoss, a division of Red Hat @ www.jboss.com

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