[jboss-jira] [JBoss JIRA] (DROOLS-339) Rules will only fire in the first session created from a knowledgebase - Segment Memory restore from Prototype conflict

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923525#comment-12923525 ] 

RH Bugzilla Integration commented on DROOLS-339:
------------------------------------------------

Mario Fusco <mfusco at redhat.com> changed the Status of [bug 1030251|https://bugzilla.redhat.com/show_bug.cgi?id=1030251] from ASSIGNED to MODIFIED
                
> Rules will only fire in the first session created from a knowledgebase - Segment Memory restore from Prototype conflict
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-339
>                 URL: https://issues.jboss.org/browse/DROOLS-339
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 6.0.0.CR5
>            Reporter: Davide Sottara
>            Assignee: Mario Fusco
>            Priority: Blocker
>             Fix For: 6.0.1.Final
>
>
> Given a KB with the two rules below: 
> {code}
>  rule "Insert Info "
>  when
>  then
>      insert(  "aaa " );
>      insert( new Integer( 12 ) );
>      insert( new Double( 4.0 ) );
>  end
>  
>  rule "React "
>  when
>      Integer()
>      accumulate (
>                   $n : Double( ) and
>                        Double(  ),
>                   $x : count( $n )
>                 )
>      String( )
>  then
>      System.out.println(  "Rule fires" );
>  end
> {code}
> The rules work normally in the first session created from the KB. 
> When any additional session is created and used, the SegmentMemories are restored from the SM Prototypes. 
> Unfortunately, the AccumulateNode -> RuleTerminalNode segment is restored twice, once when the "aaa"
> triggers the appropriate Beta Node, and once when the subnetwork updates the RIA node.
> The latter overwrites the already existing segment, overriding the partial link bits.
> See SegmentUtilities line 421, where this tentative patch shows the problem:
> {code}
> if ( NodeTypeEnums.isLeftTupleSource(node) &&  wm.getNodeMemory((MemoryFactory) node).getSegmentMemory() == null )
> {code}

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