[jboss-jira] [JBoss JIRA] (DROOLS-645) Accumulate returned fact causing NPE

[Roger Lefebvre (JIRA)]

Roger Lefebvre created DROOLS-645:
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             Summary: Accumulate returned fact causing NPE
                 Key: DROOLS-645
                 URL: https://issues.jboss.org/browse/DROOLS-645
             Project: Drools
          Issue Type: Bug
    Affects Versions: 6.2.0.Beta2
         Environment: Mac OSX (maverick)
            Reporter: Roger Lefebvre
            Assignee: Mark Proctor


The issue is discussed in https://groups.google.com/forum/?hl=en-GB#!topic/drools-usage/aZU5mXSgHMI.

Here is the gist of it....

I changed the accumulator to the following and it worked:

accumulate($sm:StatusMessage(campaignName==$campaign.campaignName, status==ManagerCallState.CALLER_FAILURE, attempts<3, sent==true), $message:oldestRetry( $sm ))  

The previous approach was this:

$message:StatusMessage() from accumulate($sm:StatusMessage(campaignName==$campaign.campaignName, status==ManagerCallState.CALLER_FAILURE, attempts<3, sent==true), oldestRetry( $sm ))

which I thought was the correct or acceptable syntax option. Is there something I have overlooked in the second one ("from"??). It does give me a StatusMessage object but it lacks the underlying properties to allow the subsequent modify to work.



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