ooops... correct version:
when
Map( this["type"] == "Point", $x : this["x"] )
Map( this["type"] == "Circle", this["x"] == $x )
then
end
2009/8/19 Edson Tirelli <tirelli(a)post.com>
when
Map( this["type"] == "Point", $x : this["x"] )
Map( this["type"] == "Circle", x == $x )
then
end
2009/8/19 André Thieme <address.good.until.2009.dec.14(a)justmail.de>
> Edson Tirelli schrieb:
>
>
> > when
> > Customer( $custId : id )
> > DailyOrders( count[$custId] == 1 )
> > then
>
> Btw, this brings me to a new syntax question for the default Drools rule
> syntax. Is this possible:
>
> when
> m:Map()
> eval( m.get("type") == "Point", $x : m.get("x") )
> ...
> Circle( x == $x )
> then
> ...
>
>
> or, an alternative which may be clearer:
>
> when
> m:Map()
> eval( m.get("type") == "Point" )
> $x : m.get("x")
> ...
> then
> ...
>
> So, what I would like to have is:
> 1) looking at all Maps which have the value "Point" under the key
"type"
> 2) of all those Maps: store in a var what value they have under key "x"
> 3) reuse the var, here $x instead of having an expensive lookup over and
> over again.
>
> Is that possible? Or would I have to write my example above as
> ...
> c:Circle()
> eval(c.getX() == m.get("x"))
>
>
> André
> --
> Lisp is not dead. It’s just the URL that has changed:
>
http://clojure.org/
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--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @
www.jboss.com