[jboss-jira] [JBoss JIRA] Assigned: (JBRULES-2719) Count in accumulate behaves incorrect in combination with update

[Mark Proctor (JIRA)]

     [ https://jira.jboss.org/browse/JBRULES-2719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor reassigned JBRULES-2719:
-------------------------------------

    Assignee: Edson Tirelli  (was: Mark Proctor)


> Count in accumulate behaves incorrect in combination with update
> ----------------------------------------------------------------
>
>                 Key: JBRULES-2719
>                 URL: https://jira.jboss.org/browse/JBRULES-2719
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.1.1.FINAL
>            Reporter: Wouter Horré
>            Assignee: Edson Tirelli
>         Attachments: count.zip
>
>
> The following rule produces different results when update is used in contrast to when retract/insert is used (when a Container instance has changed):
> rule "Count With Accumulate"
> 	when
> 		$l : Leaf();
> 		Number($nb: intValue) from accumulate($c : Container(leafs contains $l), count($c));
> 	then 
> 		System.out.println("Leaf " + $l.getName() + " with accumulate: " + $nb);
> end
> The following rule produces the correct result in both cases:
> rule "Count With Collect"
> 	when
> 		$l : Leaf();
> 		HashSet($nb : size) from collect(Container(leafs contains $l));
> 	then 
> 		System.out.println("Leaf " + $l.getName() + " with collect: " + $nb);
> end
> I have attached a minimal example that triggers the behavior.

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