[jboss-jira] [JBoss JIRA] (DROOLS-339) Rules will only fire in the first session created from a knowledgebase
Davide Sottara (JIRA)
jira-events at lists.jboss.org
Wed Nov 13 20:30:06 EST 2013
[ https://issues.jboss.org/browse/DROOLS-339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Davide Sottara updated DROOLS-339:
----------------------------------
Description:
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}
> Rules will only fire in the first session created from a knowledgebase
> ----------------------------------------------------------------------
>
> 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: Mark Proctor
> Priority: Blocker
>
> 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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