Re: [rules-users] Problem with Banking Tutorial

Ah, my memory :-) http://lists.jboss.org/pipermail/rules-dev/2013-January/004338.html Mark has promised a fix for 3 months ago, but of course 5.5.0 remains broken. -W On 18/04/2013, Stefan Schuster <stefan.m.schuster(a)gmail.com&gt; wrote: > Hi, thank you for your response. > I'm using the latest stable release of Drools 5.5.0 final. > Eclipse is Juno Service Release 2. > > Can you confirm, that the order 1,2,3 is the expected result? > > If this is a known bug, is there some kind of jira or bugzilla numer > assigned to it? > > > > 2013/4/18 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; > >> IIRC, this was a bug one or two minor versions ago. What version are you >> using? >> -W >> >> On 18/04/2013, Stefan Schuster <stefan.m.schuster(a)gmail.com&gt; wrote: >>> For the sake of completeness, here is also the RuleRunner class used >>> in >>> this example: >>> >>> package org.drools.tutorials.banking; >>> >>> import java.util.Collection; >>> >>> import org.drools.KnowledgeBase; >>> import org.drools.KnowledgeBaseFactory; >>> import org.drools.builder.KnowledgeBuilder; >>> import org.drools.builder.KnowledgeBuilderFactory; >>> import org.drools.builder.ResourceType; >>> import org.drools.definition.KnowledgePackage; >>> import org.drools.io.ResourceFactory; >>> import org.drools.runtime.StatefulKnowledgeSession; >>> >>> public class RuleRunner { >>> >>> public RuleRunner() { >>> } >>> >>> public void runRules(String[] rules, >>> Object[] facts) { >>> >>> KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); >>> KnowledgeBuilder kbuilder = >>> KnowledgeBuilderFactory.newKnowledgeBuilder(); >>> >>> for ( int i = 0; i < rules.length; i++ ) { >>> String ruleFile = rules[i]; >>> System.out.println( "Loading file: " + ruleFile ); >>> kbuilder.add( ResourceFactory.newClassPathResource( >>> ruleFile, >>> >>> RuleRunner.class ), >>> ResourceType.DRL ); >>> } >>> >>> Collection<KnowledgePackage> pkgs = >>> kbuilder.getKnowledgePackages(); >>> kbase.addKnowledgePackages( pkgs ); >>> StatefulKnowledgeSession ksession = >>> kbase.newStatefulKnowledgeSession(); >>> >>> for ( int i = 0; i < facts.length; i++ ) { >>> Object fact = facts[i]; >>> System.out.println( "Inserting fact: " + fact ); >>> ksession.insert( fact ); >>> } >>> >>> ksession.fireAllRules(); >>> } >>> } >>> >>> >>> 2013/4/18 Stefan Schuster <stefan.m.schuster(a)gmail.com&gt; >>> >>>> Hello, >>>> >>>> I have a problem with the banking tutorial number 3, which is part of >> the >>>> examples of drools expert. >>>> It simply adds some Numbers as facts, and retracts them in an >>>> increasing >>>> order. >>>> >>>> It is very short, therefore I post the whole Code: >>>> >>>> >>>> BankingExample3.java >>>> _________________________________________________ >>>> package org.drools.tutorials.banking; >>>> >>>> public class BankingExample3 { >>>> public static void main(String[] args) { >>>> Number[] numbers = new Number[] {wrap(3), wrap(1), wrap(4), >>>> wrap(1), wrap(5)}; >>>> new RuleRunner().runRules( new String[] { "Example3.drl" }, >>>> numbers ); >>>> } >>>> >>>> private static Integer wrap(int i) { >>>> return new Integer(i); >>>> } >>>> } >>>> _________________________________________________ >>>> >>>> >>>> >>>> Example3.drl: >>>> _________________________________________________ >>>> package org.drools.tutorials.banking >>>> >>>> rule "Rule 01" >>>> when >>>> $number : Number() >>>> not Number( intValue < $number.intValue ) >>>> then >>>> System.out.println("Number found with value: " + >>>> $number.intValue() ); >>>> retract( $number ); >>>> end >>>> _________________________________________________ >>>> >>>> >>>> Output: >>>> _________________________________________________ >>>> Loading file: Example3.drl >>>> Inserting fact: 3 >>>> Inserting fact: 1 >>>> Inserting fact: 4 >>>> Inserting fact: 1 >>>> Inserting fact: 5 >>>> Number found with value: 1 >>>> Number found with value: 1 >>>> Number found with value: 3 >>>> Number found with value: 4 >>>> Number found with value: 5 >>>> _________________________________________________ >>>> >>>> >>>> that seams absolute logically to me. >>>> But now I alter the Numbers in the Java-Part: >>>> Number[] numbers = new Number[] {wrap(3), wrap(1), wrap(2)}; >>>> >>>> and the output destroys everything I thought I understood: >>>> Loading file: Example3.drl >>>> Inserting fact: 3 >>>> Inserting fact: 1 >>>> Inserting fact: 2 >>>> Number found with value: 1 >>>> Number found with value: 3 >>>> Number found with value: 2 >>>> >>>> >>>> Can someone reproduce this behavior?? It seams absolutely strange to >> me. >>>> I would have expected the order 1,2,3. Any explanations? >>>> >>>> Thanks in advance for helping me! >>>> >>>> >>>> >>> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users