The full reason why the second one fires, although it is in the same
activation group:
. insert Transaction with amount < 100
. there are activations for both rules
. rule 1 fires, cancelling the actication for rule 2 (due to AG "Group1"
. rule 1 updates the matched transaction, causing another activation
of rule 2 (no-loop prohibits this for rule 1)
Advice:
* Do not rely on salience, no-loop, activation groups. This is
obfuscating your mind, distracting you from the basics, i.e., logic.
* Add constraints, clearly outlining the case when 1 and when 2 should fire.
rule 1:
$tx:Transaction(amount < 100, ! status)
rule 2:
$tx:Transaction(amount >= 100 )
-W
On 28/03/2014, Nicolas Héron <nicolas.heron.j...@gmail.com> wrote:
> Hi
> why should rule2 be ignored ?
> when $tx:Transaction();
> So it is true whatever is in transaction.
> Cheers
> Nicolas
>
>
> 2014-03-28 16:37 GMT+01:00 007reader [via Drools] <
> ml-node+s46999n4029009...@n3.nabble.com>:
>
>> I have a group of rules marked with "activation-group" where I want only
>> one rule to fire and ignore the rest. I also want to evaluate rules in
>> particular order, so I use salience to prioritize the rules within the
>> group. Here are my rules:
>>
>> rule "rule1"
>> no-loop
>> salience 100
>> activation-group "Group1"
>> when
>> $tx:Transaction(amount < 100);
>> then
>> $tx.setStatus(true);
>> update($tx);
>> end
>>
>> rule "rule2"
>> salience -50
>> activation-group "Group1"
>> when
>> $tx:Transaction();
>> then
>> System.out.println("catch all: "+$tx.toString());
>> end
>>
>> I expect that if Transaction amount<100, then rule1 will fire, and rule2
>> ignored. However both rules get executed. What am I doing wrong?
>>
>> Thx
>>
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>
> -----
> Nicolas Héron
> --
> View this message in context:
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