[rules-users] Accumulate function, events and stream processing

[juankera]

Tried, but won't work. 

Ok, step by step.

1- DRL File

Event declared, FirstRule won't work and SecondRule is working properly
(neither count or sum)

declare StateEvent
	@role( event )
end

rule "FirstRule"

when
	Number( $total : doubleValue ) from accumulate(
        StateEvent(itemName=="Temperatura", $val : newState) over
window:length( 5 ),
        count ( 1 ))
then
    System.out.println("" + $total);
end

rule "SecondRule "

when
	StateEvent(itemName=="Temperatura", $val : newState)
then
        System.out.println("" +
((DecimalType)$val).toBigDecimal().doubleValue());
end

2. Important lines from Engine starting (notice that i'm using stateful
session)

KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();

kbuilder.add(ResourceFactory.newClassPathResource(RULES_CHANGESET,
getClass()), ResourceType.CHANGE_SET);

KnowledgeBaseConfiguration kbaseConfig =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
kbaseConfig.setOption( EventProcessingOption.STREAM );		
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kbaseConfig);

StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();

3. Attached you can find the full code 
http://drools.46999.n3.nabble.com/file/n3703619/RuleService.java
RuleService.java 

4. Environment

Drools 5.3.0 FINAL, running on a OSGi environment.





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