Hello,
we are using Drools in our company. We have a rule with three conditions in
this format:
when
Condition A
Condition B
Condition C
then
execute Action 1
Now we have a situation, in which the rule should fire if AT LEAST two of
the three conditions are satisfied. Do
If I were you, I'd use something like
Global java.lang.Integer cnt;
Rule before everything
Salience 10
When
Eval(true)
Then
Cnt=0
End
Rule condition A
When
condition A
Then
cnt=cnt+1;
End
Rule condition B
When
condition B
Then
cnt=cnt+1;
End
Rule condition C
When
condition B
Then
IMO you can just use activation groups and not have to deal with
incrementing, something like:
rule first
activation-group myactgrp
when
Condition A
Condition B
then
...
end
rule second
activation-group myactgrp
when
Condition A
Condition C
then
...
end
rule third
Yes, you're right Tihomir Surdilovic
your solution is way more elegant than mine.
And to skasab2s: you should use a function to avoid copy and paste three time
the same then clause
De : rules-users-boun...@lists.jboss.org
This will not work. Rules will not predictably react to changes in global
variables. Use an object in working memory.
GreG
On Jun 3, 2010, at 7:15, PAYET, Manuel manuel.pa...@capgemini.com wrote:
If I were you, I'd use something like
Global java.lang.Integer cnt;
Rule before everything
The solutions given are useable anyway,
Thanks for this information GreG
-Message d'origine-
De : rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] De la part de Greg Barton
Envoyé : jeudi 3 juin 2010 15:29
À : Rules Users List
Objet : Re: [rules-users]
By the solutions given I didn't mean to tell mine was good, apparently it's
not, I was talking about the other ones.
-Message d'origine-
De : rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] De la part de PAYET, Manuel
Envoyé : jeudi 3 juin 2010 15:33
À :
I had to do something like this. The way I did it is by prividing a
method in my object in working memory that takes multiple Boolean
conditions and loops through them and return true if at least N of the
conditions were true. So, this funtions will take N and a list of all
conditions.
