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/t...
>>>
>>>
>>>> Thanks, David
>>>>
>>>>
>>>>
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>>>
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>>>
>>>
>>>
>>>
>>
>>
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