On 10/4/07, Edson Tirelli <tirelli@post.com> wrote:

   From the manual:

"A not statement must be followed by parentheses around the pattern that it applies to. In the simplest case of a single pattern (like below) you can omit the parentheses."

   We improved the docs for the next version. Hope it is clearer now. But Michael got it right.

    []s
    Edson

2007/10/4, Anstis, Michael (M.) < manstis1@ford.com>:

What if you try "not (Foo(id == 10) from $foos) "?

From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Chris West
Sent: 04 October 2007 16:59
To: Rules Users List
Subject: Re: [rules-users] using from with not

It does not compile. The error is:
unknown:32:20 mismatched token: [@243,682:685='from',<38>,32:20]; expecting type THEN

-Chris

On 10/4/07, Anstis, Michael (M.) <manstis1@ford.com> wrote:

Does it not compile (in which case can you post the error)?

Or does it not activate?

From: rules-users-bounces@lists.jboss.org [mailto: rules-users-bounces@lists.jboss.org] On Behalf Of Chris West
Sent: 04 October 2007 16:03
To: Rules Users List
Subject: [rules-users] using from with not

Hello,

Does anyone know why rule "GoodBye2" below does not compile, but rule "GoodBye1" does compile using Drools 4.0.0? The only difference is the "not". Shouldn't this be valid?

Thanks,
-Chris

package com.sample

import com.sample.DroolsTest.Message;
import com.sample.DroolsTest.Foo;
import java.util.List;

rule "Hello World"
   when
       m : Message( status == Message.HELLO, message : message )
   then
       System.out.println( message );
       m.setMessage( "Goodbye cruel world" );
       m.setStatus( Message.GOODBYE );
       update( m );
end

rule "GoodBye1"
   no-loop true
   when
       m : Message( status == Message.GOODBYE, message : message, $foos: foos )
       Foo(id == 10) from $foos
   then
       System.out.println ( message );
       m.setMessage( message );

end

rule "GoodBye2"
   no-loop true
   when
       m : Message( status == Message.GOODBYE, message : message, $foos: foos )
       not Foo(id == 10) from $foos
   then
       System.out.println( message );
       m.setMessage( message );

end

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  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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