[rules-dev] new binding - what't its purpose?

[Wolfgang Laun]

On 25 May 2011 16:42, Mark Proctor <mproctor at codehaus.org> wrote:

>  On 25/05/2011 08:28, Wolfgang Laun wrote:
>
>  rule  exornot
>   when
>        Number( $iCount: intValue )  from accumulate ( Fact( x > 0 ), $c:
> count(1) )
>   then
>        System.out.println( "count = " + $c );
>   end
>
> accumualte now supports multiple functinos - like min and max. As it now
> returns multiple results, the 'from' isn't appropriate. So we instead allow
> binding on the function directly. 'from' will still, for single functions it
> will behave as previously, for multiple functions I believe we throw an
> arror.
>
>
It would appear that you don't; the first function is returned via the
pattern up-front.

JIRA forthcoming, since results can't be used on the RHS.
-W




> Mark
>
>
> There's no way $c can be used in RHS code (5.3.0, current).
> Is this the intended behaviour? Where can it be used?
>
> -W
>
>
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