David Boaz wrote: 
Your answer refered to Statefull session. My question was regarding a
stateless session, that do not extend WorkingMemory.
you are using an event, that event exposes the knowledgeruntime in the event listener - stateless and stateful use the same event model and both expose the knowledgeruntime as a parameter. All events should extend KnowledgeRuntimeEvent which provides the method getKnowledgeRuntime.

Mark
Currently, I did an ugly work-around. The Activation returns a
Collection<FactHandle>, and I noticed that in runtime, the FactHandle is
instanceof InternalFactHandle, that do have a getObject(). So, My code looks
like:
for(FactHandle handle:activation.getFactHandles()){
  assert(handle instanceof InternalFactHandle);
  Object o=((InternalFactHandle)handle).getObject();
  ...
}
Im looking for the correct way to implement this functionality. 
Thanks, David


Mark Proctor wrote:
  
David Boaz wrote:
    
Thanks Mark,

The post bellow doesn't deal with the event listener registration.
Assuming
the registration was solved, now I have another issue. How to retrieve
the
Facts given Fact-handles? In a stateless session, I have no access to the
working memory.
  
      
If you are using StatefulKnowledgeSession. Then the Activation has
    Collection< ? extends FactHandle> getFactHandles();

And the KnowledgeRuntime is always available, which extends the 
WorkingMemory.

Mkar
    
David


Mark Proctor wrote:
  
      
David Boaz wrote:
    
        
Hi all,

Im trying to listen to the events fired during the evaluation of a
stateless
session. I implemented org.drools.event.rule.AgendaEventListener. The
events
fire as expected. From the event I can extract the Activation, the Rule
and
the list of FactHandles. Now, from each FactHandle I want to retrieve
the
associated fact (Object). For that, I need a WorkingMemory. But the WM
doesn't participate in the event signature. In addition, since Im using
a
stateless session, the working memory does not exist until I execute()
method.

Can you please help?
  
      
          
The event listeners don't work in the last release, this is fixed in 
trunk, please give it a try in a snapshot:
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/
    
        
Thanks, David
  
      
          
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