[rules-users] having trouble using accumulate to create a list of non null objects

[Wolfgang Laun]

Definitely a bug - please raise a JIRA with the trimmings.
-W


On 1 May 2013 15:18, burmanator <alexburman at gmail.com> wrote:

> I have 2 objects, Foo and Bar. Foo can store an instance of Bar. I am
> trying
> to create a list of all the Bar objects that correspond to all the Foo
> objects with a given name.
>
> the line in my rule I am using is:
>
> Foo($name : Name)
>
> $list : List() from accumulate( Foo( Name == $name, $b : Bar != null),
> collectList($b))
>
> Yet when I print out the list, it includes null elements. But if I instead
> make the rule:
>
> $list : List() from accumulate( Foo( Name == $name, $b : Bar != null),
> collectList($b!=null))
>
> I get false for all the null Bar objects.
>
> Am I missing something?
>
>
>
> --
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