[jboss-jira] [JBoss JIRA] Closed: (JBRULES-2274) Rule does not fire as expected using deep object model and nested 'or' clause

[Edson Tirelli (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-2274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edson Tirelli closed JBRULES-2274.
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> Rule does not fire as expected using deep object model and nested 'or' clause
> -----------------------------------------------------------------------------
>
>                 Key: JBRULES-2274
>                 URL: https://issues.jboss.org/browse/JBRULES-2274
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert)
>    Affects Versions: 5.0.1.FINAL
>         Environment: Windows XP with JBoss 4.2.2GA using the 5.0.1 jars for core, compiler and api.
>            Reporter: Brian DeCamp
>            Assignee: Edson Tirelli
>             Fix For: 5.2.0.CR1
>
>
> When combining deep facts and nested 'or' statements, rules do not fire. I've reduced the problem as much as possible with the following example:
> Note: I've used 'eval(true)' in this example, but it also happens with any expression that evaluates to true in the or clause.
> ------- begin test.drl --------
> rule "find one and two with 'or' clause - WORKS"
>     when 
>         com.xyz.SimpleFact(name == "one");
>         (eval(true) or eval(true));
>         com.xyz.SimpleFact(name == "two");
>     then
>       System.out.println("found one and two with 'or' clause");
> end
> rule "Deep one and two without 'or' - WORKS"
>     when 
>         d1: com.xyz.DeepFact();
>         com.xyz.SimpleFact(name=="one") from d1.simple;
>         d2: com.xyz.DeepFact();
>         com.xyz.SimpleFact(name=="two") from d2.simple;
>     then 
>         System.out.println("Found deep facts with simple facts one and two without 'or' clause");
> end
> rule "Deep one and two with nested 'or' - FAILURE!!!"
>     when 
>         d1: com.xyz.DeepFact();
>         com.xyz.SimpleFact(name=="one") from d1.simple;
>         (eval(true) or eval(true));
>         d2: com.xyz.DeepFact();
>         com.xyz.SimpleFact(name=="two") from d2.simple;
>     then 
>         System.out.println("THIS DOES NOT FIRE");
> end
> -------end test.drl --------
> ------- begin DeepFact.java --------
> package com.xyz;
> public class DeepFact {
>     private SimpleFact simple;
>     
>     public SimpleFact getSimple() {
>         return simple;
>     }
>     public void setSimple(SimpleFact simple) {
>         this.simple = simple;
>     }
> }
> ------- end DeepFact.java --------
> ------- begin SimpleFact.java --------
> package com.xyz;
> public class SimpleFact {
>     private String name;
>     public SimpleFact() {}
>     public SimpleFact(String name) {
>         this.name = name;
>     }
>     
>     public String getName() {
>         return name;
>     }
>     public void setName(String name) {
>         this.name = name;
>     }
>     
> }
> ------- end SimpleFact.java --------
> ------- begin test code-------
>     public void testRules() {
>         KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
>         org.drools.io.Resource ruleResource;
>         try {
>             ruleResource = ResourceFactory.newInputStreamResource(new FileInputStream("test.drl"));
>         } catch (FileNotFoundException e) {
>             throw new RuntimeException(e);
>         }
>         kbuilder.add(ruleResource, ResourceType.DRL);
>         if ( kbuilder.hasErrors() ) {
>             System.err.println( kbuilder.getErrors().toString() );
>         }                
>         Collection<KnowledgePackage> compiledPackages = kbuilder.getKnowledgePackages();
>         KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
>         kbase.addKnowledgePackages(compiledPackages);
>         StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
>         // Insert facts
>         ksession.insert(new SimpleFact("one"));
>         ksession.insert(new SimpleFact("two"));
>         
>         DeepFact d1 = new DeepFact();
>         d1.setSimple(new SimpleFact("one"));
>         ksession.insert(d1);
>         
>         DeepFact d2 = new DeepFact();
>         d2.setSimple(new SimpleFact("two"));
>         ksession.insert(d2);
>         ksession.fireAllRules();
>         ksession.dispose();
>     }
> ------- end test code --------

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