Re: [rules-users] Firing a rule if at least its two conditions are satified
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.payet(a)capgemini.com>
wrote:
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
cnt=cnt+1;
End
Rule "action 1, after everything"
Salience -10
When
eval(cnt>=2)
Then
execute action 1
End
Of course, if you change the fact, you'll probably have to think about things like
lock-on-active to increment only one time the cnt variable
-----Message d'origine-----
De : rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] De
la part de skasab2s
Envoyé : jeudi 3 juin 2010 14:04
À : rules-users(a)lists.jboss.org
Objet : [rules-users] Firing a rule if at least its two conditions are satified
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 you know how to implement this? Any ideas or hints?
Many thanks and regards!
skasab2s.
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