[rules-users] Convert logic to DRL rules

[Bill Zhang]

Hi Steven,

Thank you very much for your help. Really appreciate.

I still got the same error, Unexpected token '|'. I did not see "|" in
the document, only saw "||", which is supposed to be used with
columns.

Ye

On 2/18/07, Steven Williams <stevenw at objectconsulting.com.au> wrote:
> Hi Bill,
>
> I think it should be:
>
> $a : Person(age > 35 | < 25, zipCode == 23546 | == 68590)
>
> Edson, Mark or Michael can probably confirm or correct the above syntax.
>
> Make sure you are running of the latest trunk.
>
> cheers
> Steve
>
>
> On 2/18/07, Bill Zhang <billzhang2006 at gmail.com> wrote:
> >
> > I tried:
> >
> > $a : Person(age > 35 || age < 25, zipCode == 23546 || == 68590)
> >
> > Errors:
> > org.drools.rule.InvalidRulePackage: unknown:39:30
> Unexpected token '||'
> > unknown:39:40 mismatched token:
> [@246,1040:1041='<=',<47>,39:40];
> > expecting type '('
> > unknown:39:92 mismatched token:
> [@258,1092:1092='<',<46>,39:92];
> > expecting type '('
> >
> > I also tried
> >
> > $a : Person(age > 35 | age < 25, zipCode == 23546 | == 68590)
> >
> > Pretty much the same error.
> >
> > Based on the document, "||" is only valid for columns...
> >
> >
> > On 2/17/07, Bill Zhang <billzhang2006 at gmail.com> wrote:
> > > 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
> > > > Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
> > > > stevenw at objectconsulting.com.au
> > > > www.objectconsulting.com.au
> > > >
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> > > >
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>
>
>
> --
> Steven Williams
>
> Supervising Consultant
>
> Object Consulting
> Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
> stevenw at objectconsulting.com.au
> www.objectconsulting.com.au
>
> consulting | development | training | support
> our experience makes the difference
> _______________________________________________
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