[rules-users] using from with not

Chris West crayzfishr at gmail.com
Thu Oct 4 14:35:37 EDT 2007


Thank you for the snapshot build.  It does seem to fix the problem (and also
the bugs you mentioned you fixed).

-Chris

On 10/4/07, Edson Tirelli <tirelli at post.com> wrote:
>
>
>     Chris,
>
>     I just tested your example and it works fine in 4.0.2.SNAPSHOT. We
> fixed a long list of bugs from 4.0.0 to 4.0.1/4.0.2, so I guess this is
> one of them.
>     My suggestion for you is: since you will need to update anyway and we
> fixed the bugs you reported in JIRA, get and test the latest binary from
> here:
>
>
> https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/
>
>     The only changes we expect to do in it for the 4.0.2 release are IDE
> changes, so it is very close to what you will get when it is released.
>
>      []s
>      Edson
>
>
> 2007/10/4, Chris West < crayzfishr at gmail.com>:
> >
> > Attached is the eclipse project that illustrates the problem.  I use
> > Drools 4.0.0, and have not tried this code with 4.0.1 (since bugs in it
> > keep me from upgrading until 4.0.2).
> >
> > -Chris
> >
> > On 10/4/07, Chris West <crayzfishr at gmail.com> wrote:
> > >
> > > That makes it compile, but during the run I get:
> > >
> > > java.lang.NullPointerException
> > >     at org.drools.reteoo.builder.BuildUtils.createBetaNodeConstraint(
> > > BuildUtils.java:168)
> > >     at org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build(
> > > GroupElementBuilder.java:231)
> > >     at org.drools.reteoo.builder.GroupElementBuilder.build(
> > > GroupElementBuilder.java:70)
> > >     at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(
> > > GroupElementBuilder.java:112)
> > >     at org.drools.reteoo.builder.GroupElementBuilder.build(
> > > GroupElementBuilder.java:70)
> > >     at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(
> > > ReteooRuleBuilder.java:136)
> > >     at org.drools.reteoo.builder.ReteooRuleBuilder.addRule (
> > > ReteooRuleBuilder.java:109)
> > >     at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:116)
> > >     at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java
> > > :262)
> > >     at org.drools.common.AbstractRuleBase.addPackage (
> > > AbstractRuleBase.java:333)
> > >     at com.sample.DroolsTest.readRule(DroolsTest.java:66)
> > >     at com.sample.DroolsTest.main(DroolsTest.java:23)
> > >
> > >
> > > -Chris
> > >
> > > On 10/4/07, Anstis, Michael (M.) <manstis1 at ford.com> wrote:
> > > >
> > > >  What if you try "not (Foo(id == 10) from $foos) "?
> > > >
> > > >  ------------------------------
> > > > *From:* rules-users-bounces at lists.jboss.org [mailto:
> > > > rules-users-bounces at 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 at ford.com> wrote:
> > > > >
> > > > >  Does it not compile (in which case can you post the error)?
> > > > >
> > > > > Or does it not activate?
> > > > >
> > > > >  ------------------------------
> > > > > *From:* rules-users-bounces at lists.jboss.org [mailto:
> > > > > rules-users-bounces at 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
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > rules-users mailing list
> > > > > rules-users at lists.jboss.org
> > > > > https://lists.jboss.org/mailman/listinfo/rules-users
> > > > >
> > > > >
> > > > >
> > > >
> > > > _______________________________________________
> > > > rules-users mailing list
> > > > rules-users at lists.jboss.org
> > > > https://lists.jboss.org/mailman/listinfo/rules-users
> > > >
> > > >
> > > >
> > >
> >
> > _______________________________________________
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> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
> >
>
>
> --
>   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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