[jboss-jira] [JBoss JIRA] (DROOLS-1835) Validation false positive w/GDT: "Conflicting rows"

[Michael Anstis (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-1835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Anstis moved GUVNOR-2803 to DROOLS-1835:
------------------------------------------------

              Project: Drools  (was: Guvnor)
                  Key: DROOLS-1835  (was: GUVNOR-2803)
             Workflow: GIT Pull Request workflow   (was: classic default workflow)
          Component/s: Guided Decision Table Editor
                           (was: Guided Decision Table)
    Affects Version/s: 6.4.0.Final
                           (was: drools_6.4.0.Final)


> Validation false positive w/GDT: "Conflicting rows"
> ---------------------------------------------------
>
>                 Key: DROOLS-1835
>                 URL: https://issues.jboss.org/browse/DROOLS-1835
>             Project: Drools
>          Issue Type: Feature Request
>          Components: Guided Decision Table Editor
>    Affects Versions: 6.4.0.Final
>            Reporter: Jeff Jensen
>
> The following false positive validation errors occurred for us with the Guided Decision Table editor (created the rule in the GDT editor).  They are close but each has one discriminator column making the rows/rules unique.
> Note that the same error occurred twice, once for rule rows 1:7 and once for rule rows 4:7.
> {quote}
> Conflicting rows
> Affected rows:4, 7
> (same message for "Affected rows:1, 7")
> Conflict between two rows exists when the conditions for both rules are met with a same set of facts, but the actions set existing fact fields to different values. The conditions can be redundant or subsumptant.
> Since the actions do different things with the same conditions, it is impossible to know which actions end up activating last. This causes the rule set to be inconsistent. To fix this, please either remove one row or make the conditions more strict.
> {quote}
> This is the conditions source for the GDT (with names changed):
> {code:java}
> //from row number: 1
> rule "Row 1 RuleName"
> 	dialect "mvel"
> 	when
> 		$f : F( r == "ABC" )
> 		$gmi : GMI( )
> 		$vmear : Vmear( value >= 0.8 , value < 2.0 )
> 		$sepr : Sepr( sepr <= 1 )
> //from row number: 4
> rule "Row 4 RuleName"
> 	dialect "mvel"
> 	when
> 		$f : F( r == "ABC" )
> 		$gmi : GMI( )
> 		$vmear : Vmear( value >= 0.8 , value < 2.0 )
> 		$sepr : Sepr( sepr > 1 )
> //from row number: 7
> rule "Row 7 RuleName"
> 	dialect "mvel"
> 	when
> 		$f : F( r == "ABC" )
> 		$gmi : GMI( )
> 		$vmear : Vmear( value >= 0.8 , value < 2.0 )
> 		not (Sepr( )) 
> {code}



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