[jboss-jira] [JBoss JIRA] Created: (JBRULES-3161) CEP - event both in and out of time window at the same time
CEP - event both in and out of time window at the same time
-----------------------------------------------------------
Key: JBRULES-3161
URL: https://issues.jboss.org/browse/JBRULES-3161
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 5.2.0.Final
Environment: jre 6u24, windows 7 x64
Reporter: Radai Rosenblatt
Assignee: Mark Proctor
Priority: Critical
given this object:
public class Event {
private Date started;
private Date finished;
private long duration;
//getters and setters
}
the following drools code:
declare Event
@role( event )
@duration ( duration )
@timestamp( started )
end
rule "Event Exists In Window"
when
$eventOne : Event() over window:time( 1h ) from entry-point "Event Stream"
then
//nothing
end
rule "No Event Exists In Window"
when
not ( Event() over window:time( 1h ) from entry-point "Event Stream" )
then
//nothing
end
and the following scenario:
now-1.5h the event now+1h
|---------------------------------------|
the window
|------------------|
---------------------------------|-------------> T
now
(an event at time T that start at T-1.5h and ends at T+1h)
both of the above rules fire. im not sure which of them _should_ fire for this scenario,
but im pretty sure its either one or the other (to my understanding the conditions are
logically exclusive - there either exists an event in the window or there doesnt)
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