[rules-dev] SumIntegerAccumulateFunction not possible?

[Mark Proctor]

ok, that looks like a bug. please open a jira for it. It may well be 
that we do only return Longs and Doubles, to save on duplicate apis, but 
there should still be adequate coercion

Mark
Geoffrey De Smet wrote:
> It looks like the value objects of the accumulate framework are always 
> Long's - even when they are Integers?
>
>
> Caused by: java.lang.ClassCastException: java.lang.Long cannot be cast 
> to java.lang.Integer
>     at 
> org.drools.base.accumulators.SumIntegerAccumulateFunction.accumulate(SumIntegerAccumulateFunction.java:36) 
>
>     at 
> org.drools.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:79) 
>
>
>
>
> Here's the piece of code:
>
>     public void accumulate(Object context,
>                            Object value) {
>         SumIntegerAccumulateFunction.SumData data = 
> (SumIntegerAccumulateFunction.SumData) context;
>         data.total += ((Integer) value).intValue(); // breaks
>     }
>
>
> Here's the drl:
>
>   when
>     $totalDistance : Integer() from accumulate(
>        Hop($distance : distance),
>        sumInteger($distance)
>     );
>
>
> Here's the Hop object:
>
>     public int getDistance() {
>         ...
>     }
>
> Look ma, no longs :) Still a ClassCastException on them though.
> I must be missing something really obvious?
>