[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2642) Add support to multi-function accumulate

[Edson Tirelli (JIRA)]

    [ https://jira.jboss.org/browse/JBRULES-2642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12544013#action_12544013 ] 

Edson Tirelli commented on JBRULES-2642:
----------------------------------------

For performance purposes and also to reduce verbosity, it should be possible to define multiple functions in a single accumulate construct, as well as bind variables to results individually. For instance:

when
    accumulate( StockTick( symbol == "RHT", $p : price ),
                       $min : min( $p ),
                       $max : max( $p ),
                       $avg : average( $p ) )
then
...
end

More info here: http://community.jboss.org/wiki/DroolsLanguageEnhancements#Accumulate_Improvements_to_Support_Haskell_mapfoldfilter_and_MVEL_projectionfold

> Add support to multi-function accumulate
> ----------------------------------------
>
>                 Key: JBRULES-2642
>                 URL: https://jira.jboss.org/browse/JBRULES-2642
>             Project: Drools
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: All
>    Affects Versions: 5.1.0.FINAL
>            Reporter: Edson Tirelli
>            Assignee: Edson Tirelli
>             Fix For: FUTURE
>
>
> Add support to multi-function accumulate

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