Hi, Please any one let me know if there is any followed by operator in Drools. I want to correlate an event with another event which follows the first event. Esper supports this by using followed by (->) operator. Example in esper: "select r1.name as name,r1.userIPAddress as ipaddress,count(*) as usr_success_count, (r2.getTimeStamp()-r1.getTimeStamp()) as delta_time from pattern" + "[ (every r1=EventRecord(eventNumber=105, eventType='EVENT_REQUEST'))-> " + "(r2=EventRecord(eventNumber=110, eventType='EVENT_SUCCES', id.getCallId()=r1.getId(), name=r1.name)) where timer:within(usr_timeout_interval sec)]"; Can you please providesimilar kind of rule in Drools. -- View this message in context: http://drools.46999.n3.nabble.com/is-there-any-followed-by-in-Drools-as-w... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Actually I have tried this operator "after", but doesn't work properly as the events are inserted into working memory one by one within fraction of seconds. Consider EventRecords EventRecord(name=katta, eventType=REQUEST, id=1), EventRecord(name=katta, eventType=EVENT_UN_AUTHORIZED, id=1) and EventRecord(name=katta, eventType=REQUEST, id=2) Drool: when ($eventReq : EventRecord(eventType == "EVENT_REQUEST", respRecv == "false") from entry-point "AggStream") and ($sipResp : EventRecord( eventType == "EVENT_UN_AUTHORIZED", name == $eventReq.name, id.getCallId()=r1.getId(), respRecv == "false", timeStamp >= $eventReq.getTimeStamp(), this after[ 0s, 10s ] $eventReq ) from entry-point "AggStream") and ($eventReq2 : EventRecord( eventType == "EVENT_REQUEST", name == $eventReq.name, respRecv == "false", timeStamp >= $eventReq.getTimeStamp(), this after[ 0s, 10s ] $eventReq) from entry-point "AggStream") then System.out.println( "++++++ Counter events : unauthorized2 event : " + $eventReq.getname()+", $eventReq.getId()="+ $eventReq.getId()+", $eventReq2.getId()="+ $eventReq2.getId()); This rules give the below output: ++++++ Counter events : unauthorized2 event : katta $sipReq.getId()=1, $sipReq2.getId()=1 ++++++ Counter events : unauthorized2 event : katta $sipReq.getId()=2, $sipReq2.getId()=2 But Expected output is: ++++++ Counter events : unauthorized2 event : katta $sipReq.getId()=1, $sipReq2.getId()=2 -- View this message in context: http://drools.46999.n3.nabble.com/is-there-any-followed-by-in-Drools-as-w... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Hi, Please any one let me know if there is any followed by operator in Drools. I want to correlate an event with another event which follows the first event. Esper supports this by using followed by (->) operator. Example in esper: "select r1.name as name,r1.userIPAddress as ipaddress,count(*) as usr_success_count, (r2.getTimeStamp()-r1.getTimeStamp()) as delta_time from pattern" + "[ (every r1=EventRecord(eventNumber=105, eventType='EVENT_REQUEST'))-> " + "(r2=EventRecord(eventNumber=110, eventType='EVENT_SUCCES', id.getCallId()=r1.getId(), name=r1.name)) where timer:within(usr_timeout_interval sec)]"; Can you please providesimilar kind of rule in Drools.

-- View this message in context: http://drools.46999.n3.nabble.com/is-there-any-followed-by-in-Drools-as-w... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users