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(a)gmail.com
<mailto:crayzfishr@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(a)ford.com
<mailto:manstis1@ford.com>> wrote:
What if you try "not (Foo(id == 10) from $foos) "?
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<mailto:rules-users-bounces@lists.jboss.org>
[mailto: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(a)ford.com
<mailto:manstis1@ford.com>> wrote:
Does it not compile (in which case can you post the
error)?
Or does it not activate?
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<mailto:rules-users-bounces@lists.jboss.org>
[mailto: rules-users-bounces(a)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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