[rules-users] Convert logic to DRL rules

[Bill Zhang]

Thank you Steve. But I got syntax error using the following.

On 2/17/07, Steven Williams <stevenw at objectconsulting.com.au> wrote:
> In trunk I think you can use connective constraints:
>
> $a : Person(age > 35 | < 25, zipCode == 23546 | == 68590)
> then
> $a.setStatus("KT");
>
>
>
>
> On 2/18/07, Bill Zhang <billzhang2006 at gmail.com> wrote:
> >
> > Hello,
> >
> > I am a new Drools user trying to convert the following simple logic into
> DRL:
> >
> > IF (Person.Age > 35 OR Person.Age < 25) AND (Person.ZipCode = 23546 or
> > Person.ZipCode = 68590)
> > THEN
> > Person.Status = "KT";
> >
> > I found that it is not easy to convert the above logic into ONE DRL rule.
> >
> > I tried something like this
> >
> > when
> > $a: Person(age>35) or Person (age<25)
> > $b: Person(Zipcode==23456) or Person (ZipCode == 68590)
> > $c: $a and $b
> > Then
> > $c.setStatus("KT")
> >
> > But looks like I can not use
> > $c: $a and $b
> > becaue in Drools, you can only bind variable to column, not to other
> varaibles.
> >
> > Please advise how to do this. I would imagine this should be quite
> > simple, maybe I missed something quite obvious.
> >
> > I know that I can write custom Java method to do this, but if I do
> > that, I suppose I lose the power of RETEOO pattern matching (pattern
> resuing,
> > etc.). So I prefer not to do that.
> >
> > I also understand I can break the above logic into 4 rules and that
> > would be quite easy, but our business user is not used to think in
> > that way. Also, we have more complex logic than the above. So what I
> > want is to see if there is a way to convert this
> > kind of logic in ONE DRL rule.
> >
> > Thanks in advance.
> >
> > Bill
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
>
>
>
> --
> Steven Williams
>
> Supervising Consultant
>
> Object Consulting
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