Here's a working example of using AgendaEventListener...
http://article.gmane.org/gmane.comp.java.drools.user/22375
Your example has the line attaching the AgendaEventListener to the session
commented out. This wouldn't help ;-)
Cheers,
Mike
2010/11/18 Agarwal, Beena <BAgarwal(a)ea.com>
Can anyone explain when the ActivationCreatedEvent,
BeforeActivationFiredEvent,AfterActivationFiredEvent are actually triggered?
I added a AgendaEventListener on a StatefulKnowledgeSession and never see
the events being fired when I’m in the debugger.
I’m basically trying to collect some session stats.
Here’s a snippet –
KnowledgeBaseConfiguration kbaseConf = KnowledgeBaseFactory.*
newKnowledgeBaseConfiguration*();
kbaseConf.setOption(MBeansOption.*ENABLED*);
commonKB = KnowledgeBaseFactory.*newKnowledgeBase*("kb-"+
gameCode, kbaseConf);
commonKB.addKnowledgePackages(kbuilder.getKnowledgePackages());
*StatefulKnowledgeSession* session = commonKB
.newStatefulKnowledgeSession();
//session.addEventListener(bean.getAgendaStats());
session.addEventListener(new DefaultAgendaEventListener()
{
public void
activationCancelled(ActivationCancelledEvent event) {
System.out.*println*("activation *
cancelled*");
}
public void
activationCreated(ActivationCreatedEvent event) {
System.out.*println*("activation
created");
}
public void
afterActivationFired(AfterActivationFiredEvent event) {
System.out.*println*("after activation
fired");
}
public void
beforeActivationFired(BeforeActivationFiredEvent event) {
System.out.*println*("before activation
fired");
}
});
.. add facts..
Session.fireAllRules();
I never see the printlns or the breakpoints in the DefaultAgendaListener –
are these supposed to be triggered when the rules are fired?
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