[rules-users] accumlator and BigDecimal

[Wolfgang Laun]

Stack dump? Version?
Is $gb.row and $gu.row not null?
Is upcharge in all selected GroupUpcharges not null?
-W


On 20 July 2011 18:20, mjohansen <mjohansen at lazboy.com> wrote:

> I'm trying to create an accumulator to sum a BigDecimal. Here's what I
> wrote:
>
>    $upcharge : BigDecimal(  )
>    from accumulate( GroupUpcharges( row>$gb.row && row<=$gu.row, $value :
> upcharge),
>                              init( BigDecimal total = BigDecimal.ZERO; ),
>                              action( total=total.add($value); ),
>                              reverse( total=total.subtract($value); ),
>                              result( total ) )
>
> $gb and $gu are set earlier in the WHEN clause.
>
> When I run this, it compiles successfully, but then flows up at run time
> with a null pointer exception. What am I doing wrong?
>
> --
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