5:25 p.m.
I'm evaluating the use of Drools Fusion for a new project and have a question about
sliding windows that wasn't clear from the documentation. Does the time specification
in a sliding window need to be hardcoded in the rule, or can it be derived from something
else? Basically, I'm wondering whether I can write a rule that looks something like
when
...
Window ($win : length)
Number (intValue > $someValue) from accumulate (
Sample($len: length, value > $someThreashold) over window:time ($win),
sum($len) )
then
...
end
I know window:time() supports constant values like "10m", but can the window be
driven from one of the other facts in the LHS picked up by the LHS of the rule?
Will Lauer
CA Technologies
Sr Software Architect
Tel: +1-713-625-9410
Cell: +1-979-820-2210
Will.Lauer(a)ca.com
7:06 p.m.
Nope, only constants.
Edson
On Thu, Mar 1, 2012 at 11:25 AM, Lauer, Will C <Will.Lauer(a)ca.com> wrote:
I'm evaluating the use of Drools Fusion for a new project and
have a
question about sliding windows that wasn't clear from the documentation.
Does the time specification in a sliding window need to be hardcoded in the
rule, or can it be derived from something else? Basically, I'm wondering
whether I can write a rule that looks something like
when
...
Window ($win : length)
Number (intValue > $someValue) from accumulate (
Sample($len: length, value > $someThreashold) over
window:time ($win),
sum($len) )
then
...
end
I know window:time() supports constant values like "10m", but can the
window be driven from one of the other facts in the LHS picked up by the
LHS of the rule?
Will Lauer
CA Technologies
Sr Software Architect
Tel: +1-713-625-9410
Cell: +1-979-820-2210
Will.Lauer(a)ca.com
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--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
10:51 p.m.
Don't you fret because this isn't available. It's not difficult to collect
facts over a variable interval, provided the timestamp is a regular
property. An auxiliary fact defines the window's boundaries, and then you
use ops like <= to select the facts.
-W
On 1 March 2012 17:25, Lauer, Will C <Will.Lauer(a)ca.com> wrote:
I'm evaluating the use of Drools Fusion for a new project and
have a
question about sliding windows that wasn't clear from the documentation.
Does the time specification in a sliding window need to be hardcoded in the
rule, or can it be derived from something else? Basically, I'm wondering
whether I can write a rule that looks something like
when
...
Window ($win : length)
Number (intValue > $someValue) from accumulate (
Sample($len: length, value > $someThreashold) over
window:time ($win),
sum($len) )
then
...
end
I know window:time() supports constant values like "10m", but can the
window be driven from one of the other facts in the LHS picked up by the
LHS of the rule?
Will Lauer
CA Technologies
Sr Software Architect
Tel: +1-713-625-9410
Cell: +1-979-820-2210
Will.Lauer(a)ca.com
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
4445
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2 comments
3 participants
participants (3)
-
Edson Tirelli -
Lauer, Will C -
Wolfgang Laun