Please don't cross post: http://www.jboss.org/drools/lists.html
IMO, Drools can do what you want but you need to change the way you are
thinking about the problem.
The behaviour you consider undesirable is by design as all patterns
(i.e. conditions) need to be matched for the consequence to activate.
The way that came immediately to mind was to place individual conditions
into separate rules and have the consequences record the match.
Very simplistically (a mash-up of code and pseudo code):-
Rule "setup"
when
then
ConditionHolder h = new ConditionHolder();
h.add(condition1, false); //false indicates the
condition was not matched, true that it was
h.add(condition2, false);
insert(new ConditionsHolder());
End
Rule "condition1"
when
condition1
$h : ConditionHolder()
then
$h.set(condition1, true);
End
Rule "condition2"
when
condition2
$h : ConditionHolder()
then
$h.set(condition2, true);
End
You can then retrieve ConditionHolder and lookup which conditions were
matched or unmatched.
Good luck.
Mike
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of DroolUser
Sent: 15 August 2008 08:59
To: rules-users@lists.jboss.org
Subject: [rules-users] Can drools comtinue testing even if one of
theconditions fail ?
Hi,
I'm using drools for testing if the few attributes of my MO are not
null.
I construct the rule in the .drl file in following way :
rule "name"
when
condition1
condition2
condition3
condition4
then
consequence
end
I have observed that the drool engine verifies the conditions line by
line
(in the sequence they have written). The moment condition fails, control
comes back to the calling method.
I don't want this. I want the control to execute each and every
condition
whether true or false and maintain a record of passed/failed conditions.
Something like this :
rule "name"
when
condition1
log the test result --- This statement should get
executed
even if condition 1 fails and control should go to condition 2
condition2
log the test result
condition3
log the test result
condition4
log the test result
then
consequence
end
Is this possible in Drools ?
--
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ditions-fail---tp18995160p18995160.html
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