Re: [rules-users] Fusion: Null pointer exception when using sliding windows
Wolfgang,
I was expecting you to do that :)
Btw, I don't know the requirements, but I wonder if some window
filter or temporal horizon (i.e. before[x,y]) shouldn't be applied to
the second pattern too... the use of a plain "before" requires to
keep all events in the WM since the beginning of time
On 04/19/2013 08:48 PM, Wolfgang Laun wrote:
On 18/04/2013, burmanator <alexburman(a)gmail.com> wrote:
> rule test
> when
> $primary : Foo($name : Name) over window:length(24)
> $prev : ArrayList(size<1) from collect ( Foo(Name == $name, this before
> $primary))
> then
> System.out.println("Found name: " + $name);
> end
>
Apart from the sliding window and the manifest bug: I just wonder why
nobody has pointed out that the rule can be rewritten as:
rule test
when
$primary : Foo($name : Name) over window:length(24)
not Foo(Name == $name, this before $primary)
then
System.out.println("Found name: " + $name);
end
There is no other way the list size can be less than 1 :-)
-W
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