Same answer: most of the time, it is better to have it as a fact, but
sometimes, a from may be better by limiting your search space.

   Again, these things are like SQL. You need to look at the whole domain
model as well as the set of your rules. The major performance optimizations
are made on a rule-set level, not individual rules. So, if you want the best
performance you need to write your individual rules to work better as a set
of rules, sharing nodes, reducing partial matches, etc.

   []s
   Edson

2008/11/21 vdelbart <[EMAIL PROTECTED]>

>
> I have a similar question with global or fact (Foo is never modified)
>
> What's more efficient beetwen :
>
> 1. rule "Foo_globals"
>    when
>        Foo(name != null) from fooGlobals
>    then
>        ...
> end
>
> 2. rule "Foo_facts"
>    when
>        Foo(name != null)
>    then
>        ...
> end
>
> thanks,
>
>
> regards,
>
> V.
>
> --
> View this message in context:
> http://www.nabble.com/What%27s-more-efficient-too---tp20623413p20623413.html
> Sent from the drools - user mailing list archive at Nabble.com.
>
> _______________________________________________
> rules-users mailing list
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> https://lists.jboss.org/mailman/listinfo/rules-users
>



-- 
 Edson Tirelli
 JBoss Drools Core Development
 JBoss, a division of Red Hat @ www.jboss.com
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