Jeremy is right. In the log you can see 2 activations (one for each fact you insert), then the execution of one of the activations and then the cancellation of the other. How many rules do you have in your kbase? Is your rule as simple as the one you posted? Do you have more than just 1 condition in your LHS? Are you doing anything else other than the system.out in your RHS?

Best Regards, 


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Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com


On Fri, Feb 8, 2013 at 4:17 PM, Jeremy Ary <jeremy.ary@gmail.com> wrote:
==>[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation
rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE]

There's definitely something cancelling the activation, but it's not apparent to me right-out what's causing it based on the information provided so far. To Estaban's comment, would it be possible to share an isolated example as I can't help but to think there's something missing from what we've seen so far that would cause this to occur.


On Fri, Feb 8, 2013 at 9:14 AM, Jeremy Ary <jeremy.ary@gmail.com> wrote:
Actually, incorrect, I misread the output, sorry.


On Fri, Feb 8, 2013 at 9:12 AM, Jeremy Ary <jeremy.ary@gmail.com> wrote:
It appears you have a rule named CLEAR not included in the original post that's cancelling the activation that should println ONE, can you share this rule with us?


On Fri, Feb 8, 2013 at 9:10 AM, pdario <dario.piantanida@gmail.com> wrote:
I'll try to make it; in the meanwhile, do you find this meaningful?

==>[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=0,
salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE]
], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c]
==>[ObjectInsertedEventImpl: getFactHandle()=[fact
0:1:30100654:78406:1:DEFAULT:ONE], getObject()=ONE,
getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c,
getPropagationContext()=PropagationContextImpl [activeActivations=0,
dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact
0:1:30100654:78406:1:DEFAULT:ONE], leftTuple=null, originOffset=-1,
propagationNumber=3, rule=null, type=0]]
==>[ActivationCreatedEvent: getActivation()=[Activation rule=TEST, act#=1,
salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO]
], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c]
==>[ObjectInsertedEventImpl: getFactHandle()=[fact
0:2:30649454:83500:2:DEFAULT:TWO], getObject()=TWO,
getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c,
getPropagationContext()=PropagationContextImpl [activeActivations=1,
dormantActivations=0, entryPoint=EntryPoint::DEFAULT, factHandle=[fact
0:2:30649454:83500:2:DEFAULT:TWO], leftTuple=null, originOffset=-1,
propagationNumber=4, rule=null, type=0]]
TWO
==>[BeforeActivationFiredEvent:  getActivation()=[Activation rule=TEST,
act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO]
], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c]
==>[ActivationCancelledEvent: getCause()=CLEAR, getActivation()=[Activation
rule=TEST, act#=0, salience=0, tuple=[fact 0:1:30100654:78406:1:DEFAULT:ONE]
], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c]
==>[AfterActivationFiredEvent: getActivation()=[Activation rule=TEST,
act#=1, salience=0, tuple=[fact 0:2:30649454:83500:2:DEFAULT:TWO]
], getKnowledgeRuntime()=org.drools.impl.StatefulKnowledgeSessionImpl@4703c]
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