[jboss-jira] [JBoss JIRA] Updated: (JBRULES-1046) Business Object returns null due to Shadow Fact, unless declared final

[Edson Tirelli (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1046?page=all ]

Edson Tirelli updated JBRULES-1046:
-----------------------------------

    Fix Version/s: 4.0.1

> Business Object returns null due to Shadow Fact, unless declared final
> ----------------------------------------------------------------------
>
>                 Key: JBRULES-1046
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1046
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Reteoo
>    Affects Versions:  4.0.0.MR3,  4.0.0.GA
>         Environment: Windows, X86 based machine
>            Reporter: Arjun Dhar
>         Assigned To: Edson Tirelli
>             Fix For: 4.0.1
>
>
> SCENARIO
> -----------------
> Define an Object 'BooleanConfiguration'
> public class BooleanConfiguration extends BusinessObject { 
>   String paramName; //with setter and getter
>   Boolean value; //with setter and getter
>   Client client; //with setter and getter -- Client is an object that composes of String clientId;
> }
> *BusinessObject is just a generic Object that maintains a reference to the Assertion List from where it came (Ref. to the container object, Collection).
> Action(s):
> -------------
> 1. initialize the object with a Parameter and Value (Hard code to test) -- Set
> 2. Execute against a Rule:
> When
>    config: BooleanConfiguration(value==true)
> Then
>   //Do something
> end
> EXECUTION NOTES:
> -------------------------------
> 1. I asserted this object and the rule was not executing as I expected.
> 2. I put a break point in the object, and found that it set it correctly but 
> whenenver the rule engine called the get method the vaue of the object was null.
> 3. I traced this the place where it creates shadows in Rete.java.
> I had observed a similar behaviour in version 3.1 or 3.6 (if there was a 3.6).
> it was more prolific then.
> 4. I made the class 'final' (This prevents a shadow from being created), and voila
> my rule worked as expected. 
> Note: None of the other objects needed a final, but had comeplex associations.
> But this particular object does not run, unless declared final.

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