[jboss-jira] [JBoss JIRA] (DROOLS-311) Odd rules execution for expired events

Mario Fusco (JIRA) issues at jboss.org
Wed Sep 23 05:33:00 EDT 2015


     [ https://issues.jboss.org/browse/DROOLS-311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco reassigned DROOLS-311:
----------------------------------

    Assignee: Mario Fusco  (was: Mark Proctor)


> Odd rules execution for expired events
> --------------------------------------
>
>                 Key: DROOLS-311
>                 URL: https://issues.jboss.org/browse/DROOLS-311
>             Project: Drools
>          Issue Type: Bug
>    Affects Versions: 5.5.0.Final, 6.0.0.CR5
>         Environment: Windows Vista 64, JRE6 (x86)
>            Reporter: Karol Sobczak
>            Assignee: Mario Fusco
>            Priority: Critical
>         Attachments: expiredrules.zip
>
>
> I have declared two types:
> declare Motion
>   @role( event )
>   @expires( 5s )
>   @timestamp( eventTime )
>   eventTime : long
> end
> declare Recording
> end
> and following rules:
> rule "StartRecording"
>   when
>     Motion()
>     not Recording()
>   then
>     insert(new Recording())
> end
> the problem is that when I put a lot of "Motions", sleep (so "Motions" become expired) and then do fireAllRules(), I got "StartRecording" executed multiple times (and not only once), event though "Recording" is inserted every time. 
> Another issue would be when instead of "StartRecording" rule I would have "StopRecording" rule:
> rule "StopRecording"
>   when
>     $m : Motion()
>     $r : Recording()
>   then
>     System.err.println("Recording: " + $r);
>     retract($r);
> end 
> then when there is a "Recording" fact inserted and multiple expired "Motions", the rule would be executed multiple times (when "Motions" expire) and $r would be null after the first "StopRecording" rule execution.



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