[jboss-jira] [JBoss JIRA] (JBRULES-3673) Fact metadata declared in a POJO are lost when declaring fact metadata in DRL

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730352#comment-12730352 ] 

RH Bugzilla Integration commented on JBRULES-3673:
--------------------------------------------------

Mario Fusco <mfusco at redhat.com> made a comment on [bug 869967|https://bugzilla.redhat.com/show_bug.cgi?id=869967]

Backported to 5.3.1
                
>  Fact metadata declared in a POJO are lost when declaring fact metadata in DRL
> ------------------------------------------------------------------------------
>
>                 Key: JBRULES-3673
>                 URL: https://issues.jboss.org/browse/JBRULES-3673
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>            Reporter: Mario Fusco
>            Assignee: Mario Fusco
>             Fix For: 5.4.1.Final, 5.5.0.Final
>
>
> Assume a POJO is used as a fact and annotated with @Position as follows:
> public class PositionAnnotatedEvent {
>   @Position(1)
>   private String arg1;
>   @Position(0)
>   private String arg0;
>   // getters and setters
> }
> When I add some metadata to this class in DRL, for example:
> declare org.jboss.qa.brms.bre.regression.POJOAnnotationMergeTest.PositionAnnotatedEvent
>     @role(event)
> end 
> Then the following rule using positional arguments does not compile, producing an IndexOutOfBoundsException with message 'Error trying to access field at position 0'. The same rule with named arguments compiles:
> rule 'sample rule' 
> when 
>   org.jboss.qa.brms.bre.regression.POJOAnnotationMergeTest.PositionAnnotatedEvent( 'value1', 'value2'; ) 
> then
> end 
> The relevant stack trace follows:
> java.lang.IndexOutOfBoundsException: Error trying to access field at position 0
> 	at org.drools.factmodel.ClassDefinition.getField(ClassDefinition.java:162)
> 	at org.drools.rule.builder.PatternBuilder.processPositional(PatternBuilder.java:432)
> 	at org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternBuilder.java:392)
> 	at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:310)
> 	at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:131)
> 	at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65)
> 	at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:80)
> 	at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2578)
> 	at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:970)
> 	at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:456)
> 	at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:643)
> 	at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:41)

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