Of course, you can also create your own event listener.
Something like this:
public class YourClass extends DefaultWorkingMemoryEventListener
{
public void yourMethodForFiringRules()
{
// Load the rules file and set the event listener
FileReader rulesFile = new FileReader("yourRulesFile.drl");
RuleBase ruleBase = RuleBaseLoader.loadFromReader(rulesFile);
WorkingMemory workingMemory = ruleBase.newWorkingMemory();
workingMemory.addEventListener(this);
// Assert objects
workingMemory.assertObject(new YourObject());
...
// Fire rules
workingMemory.fireAllRules();
}
public void activationFired(ActivationFiredEvent firedEvent)
{
// Get the name of the fired rule
String firedRuleName = firedEvent.getRule().getName();
// See API for more methods on ActivationFiredEvent
}
}
God bless,
Jaime
-----Mensaje original-----
De: Matthew Pawluk [mailto:[EMAIL PROTECTED]
Enviado el: miércoles, 08 de febrero de 2006 23:16
Para: [email protected]
Asunto: Re: [drools-user] how to know which rule was fired?
Use the WorkingMemory addEventListener method....
snippet:
Rulebase rb = RuleBaseLoader.loadFromInputStream(rulesetStream);
WorkingMemory wm = rb.newWorkingMemory( ); wm.addEventListener(new
DebugWorkingMemoryEventListener());
Geoffrey Wiseman wrote:
> I don't know of a detailed example on the site for this; there may be one.
> I've used it before, but I don't have a working example at hand that I
> can easily supply, and a quick scan of Google doesn't show anything obvious.
>
> I do agree that this is probably what you want to look into though.
> Activation fired events will tell you when a rule has been executed,
> and applying an listener to working memory is fairly painless.
>
> On 2/8/06, Peter Van Weert <[EMAIL PROTECTED]> wrote:
>
>> I'm sorry, but I can't help you there. I have hardly any practical
>> experience with Drools myself. Maybe someone else can help?
>>
>> Felipe Piccolini wrote:
>>
>> Peter,
>>
>> Where can I get more info, doc or some examples for listeners and
>> event handlers. I would like to see some code example for a simple
>> rule execution, with fact assertions, application data and invoking
>> the fireAllRules method.
>>
>> Thanks.
>>
>> Wednesday, February 8, 2006, 5:39:25 PM, you wrote:
>>
>> Maybe http://www.drools.org/Event+Model?nocache could be of use to
>> you (in particular the ActivationFiredEvent-event)?
>>
>> Joel G. Rivera-González wrote:
>>
>> i have a over a meg of rules and we need to know whitch rule was fired...
>>
>> i know i can send a string with the rule name on the consequence, but
>> i would like to know if drools provide something for this...
>> if not...i think it would be a great addition to drools to know the rule
>> that was fired...
>>
>> thanks...
>>
>> -Joel
>>
>> Joel G. Rivera-González Wovenware, Inc [EMAIL PROTECTED] "The
>> first 90% of a project takes 90% of the time, the last 10% takes the
>> other 90% of the time" - Murphy's Law
>>
>>
>>
>>
>>
>>
>> --------------------------
>> Felipe Piccolini
>> [EMAIL PROTECTED]
>>
>>
>>
>>
>>
>
>
> --
> Geoffrey Wiseman
>
>
--
Matthew Pawluk
NeuLion Inc.
1600 Old Country Road
Suite 102
Plainview, NY 11803
516.249.6565
[EMAIL PROTECTED]
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