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

[Arjun Dhar (JIRA)]

Business Object returns null due to Shadow Fact, unless declared final
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                 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.GA,  4.0.0.MR3
         Environment: Windows, X86 based machine
            Reporter: Arjun Dhar
         Assigned To: Mark Proctor


SCENARIO
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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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