[jboss-user] [jBPM] - Drools accumulate function

[stellina_rosa]

stellina_rosa [http://community.jboss.org/people/stellina_rosa] created the discussion

"Drools accumulate function"

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Hi!
I'm trying to use the accumulate function in my rules, but I haven't the expected result. this is my rule:

rule "Total days"
            when

                         $mo: MyObject() 
       $total : Number() from accumulate(Item(item=="days", $val:value) from $mo.items, sum( $val ) )

    then 

                          System.out.println($total);

end


Suppose that tha values of MyObject(id, arrayList<Item> items) are:

MyObject(id=1, items({price,10},{days,2});
MyObject(id=2, items({price,15},{days,5});
MyObject(id=3, items({price,20},{days,7});

the result should be 2+5+7 = 14 but instead it print me 3 value:
2
5
7
.... where I wrong? I want the sum of the days...!
please help me..!
thank you!
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