[jboss-jira] [JBoss JIRA] Updated: (JBRULES-1204) Problem with memberOf and/or eval used in collect statement

[Chris West (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1204?page=all ]

Chris West updated JBRULES-1204:
--------------------------------

    JBoss Forum Reference: http://lists.jboss.org/pipermail/rules-users/2007-September/003150.html

> Problem with memberOf and/or eval used in collect statement
> -----------------------------------------------------------
>
>                 Key: JBRULES-1204
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1204
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions:  4.0.0.GA, 4.0.1
>            Reporter: Chris West
>         Assigned To: Mark Proctor
>         Attachments: TestMemberOfWithCollect.zip
>
>
> I'm having a problem using memberOf combined with a collect statement.  My test includes 3 rules each written to output the same results (I think), but I get different results (depending on which version of Drools I use).
> The rules are:
> rule "TestMemberOf"
>     salience 10
>     when
>         $messages: ArrayList() from collect (Message(status == 100))
>         $wrappers: ArrayList() from collect (Wrapper(message memberOf $messages))
>     then
>         System.out.println("TestMemberOf: " + $wrappers.size());
> end
> rule "TestEval1"
>     salience 9
>     when
>         $messages: ArrayList() from collect (Message(status == 100))
>         $wrappers: ArrayList() from collect (Wrapper($message: message, eval($messages.contains($message))))
>     then
>         System.out.println("TestEval1: " + $wrappers.size());
> end
> rule "TestEval2"
>     salience 8
>     when
>         $wrappers: ArrayList() from collect (Wrapper($message: message, eval($message.getStatus() == 100)))
>     then
>         System.out.println("TestEval2: " + $wrappers.size());
> end
> The output is (by version):
> 4.0.0
> TestMemberOf: 0
> TestEval1: 0
> TestEval2: 2
> 4.0.1
> TestMemberOf: 0
> TestEval1: 2
> TestEval2: 2
> 4.0.2.SNAPSHOT (taken 9/18/07)
> TestMemberOf: 0
> TestEval1: 2
> TestEval2: 2
> The correct output should be:
> TestMemberOf: 2
> TestEval1: 2
> TestEval2: 2

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