[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2559) Problem with Collect statement from a source that is a previous declaration after an OR'd group in MVEL dialect

[Chris DeLashmutt (JIRA)]

    [ https://jira.jboss.org/browse/JBRULES-2559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12536988#action_12536988 ] 

Chris DeLashmutt commented on JBRULES-2559:
-------------------------------------------

I added what I think is a proper clone implementation to MVELDataProvider, but now the problem I'm seeing is that when MVELDataProvider is serialized, it doesn't save the prototype and requiredDeclarations properties.  It seems like those properties get re-set properly via AbstractRuleBase's readExternal method when it calls Package.getDialectRuntimeRegistry.onBeforeExecute() on all the packages.  However, ReteooBuilder seems to get it's own clones of the MVELDataProvider and it has no such call to onBeforeExecute in it's readExternal method.  I'll see if I can implement something.

> Problem with Collect statement from a source that is a previous declaration after an OR'd group in MVEL dialect
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-2559
>                 URL: https://jira.jboss.org/browse/JBRULES-2559
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core
>    Affects Versions: 5.1.0.M2
>            Reporter: Chris DeLashmutt
>            Assignee: Mark Proctor
>         Attachments: patch.txt
>
>
> When using a Collect statement that is sourced from a nested property of a bound pattern and it follows an OR'd group of evals, the bound pattern seems to be pointing to the wrong object in the tuple.  I have attached a diff for drools-compiler that includes a new test case in FirstOrderLogicTest and DRL that exhibits this problem.

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