2011/7/11 Edson Tirelli <ed.tirelli@gmail.com>

It is not possible to know, looking only at the screenshots that you sent, what is the problem. Are the values null at the time you insert them into the session? If you modify them after inserting them into the session, are you properly notifying the engine?

Edson

2011/7/11 pamerida <elpamm@hotmail.com>

Hi everyone,
I have a couple of rules, I just want to show a message when one of the
fields is null and heres my code:

21. | rule 'rule1'
22. | salience 9990
23. | when
24. | Cuscar(bgm.size > 0 && bgm[0].c1001== null );
25. | then
26. | logger.log("Rule 1 activated");
27. |
28. | end
29. |
30. | rule 'rule2'
31. | salience 9970
32. | when
33. | Cuscar(bgm.size > 0 && bgm[0].c1004== null );
34. | then
35. | logger.log("Rule 2 activated");
36. |
37. | end

And here's the result:

Scenario #1

http://drools.46999.n3.nabble.com/file/n3160376/debug2.jpg
with this values when I call fire all rules I dont get any message (its ok
because none of the elements is null)

Scenario #2
http://drools.46999.n3.nabble.com/file/n3160376/debug1.jpg

with this values when I call fire all rules both rules are fired so i get
both messages "Rule 1 activated" and "Rule 2 activated" (Incorrect - it
should only fire rule number 1 cause only the element c1001 is null)

Scenario #3
http://drools.46999.n3.nabble.com/file/n3160376/debug3.jpg

with this values when I call fire all rules I dont get any message
(Incorrect - it should activate rule number 2)

This is my model:
http://drools.46999.n3.nabble.com/file/n3160376/rules-drools-model-1.0.0-SNAPSHOT-jar-with-dependencies.jar
rules-drools-model-1.0.0-SNAPSHOT-jar-with-dependencies.jar

Can anybody help me please?, I dont know what am I doing wrong, thank you
very much :) ....

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Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com

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