Re: [rules-users] fusion aggregate functions
Accumulate functions are completely pluggable in Drools. Drools ships
with a few out of the box (min, max, sum, etc), but there is no perf
difference between the out of the box and the user defined ones, as the out
of the box functions are implemented in the exact same way and you can even
use them as examples to create your own functions.
Check drools expert documentation on the "accumulate" section. Also, this
blog shows how to implement your own:
http://blog.athico.com/2009/06/how-to-implement-accumulate-functions.html
[]s
Edson
2010/1/11 Ahmed Hafsi <hafsi(a)fzi.de>
Hi guys,
I have found in the documentation examples in sliding windows part, the
average aggregate , I need other aggregates like max. min , standard
deviation ... is there any of those already buitin ? I have searching the
docus. , but havn't found much dealing with the built in aggregate
functions.
Also if I want to implement one of them using normal rules , Is it true
that
it will not be as sufficient ?
Thanks,
k-
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Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
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