[rules-users] Object Referencing error:

[Fnu Mahalakshmi]

Hi,

I am getting the following error when I try to do complex object referencing in drools:
My class:
A{
String Type;
B objectb;
//getters and setters for above
}

My rules:

rule "prod"

      when
     $a :A(Type == "Prod" , objectB != "")
      then
B bobject = new B();
     bobject.setType( "Prod" );
     bobject.setId($a.getNumber().getId());
     update(bobject);

end

I want to basically output a file which has updated values of B (type, Id)


Error:
org.drools.spi.ConsequenceException: org.drools.FactException: Update error: handle not found for object: com.org.Ip at f42ad0. Is it in the working memory?
      at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:13)
      at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:558)
      at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518)
      at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475)
      at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439)
      at com.org.DroolsTest.main(DroolsTest.java:30)
Caused by: org.drools.FactException: Update error: handle not found for object: com.org.Ip at f42ad0. Is it in the working memory?
      at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:100)
      at com.org.Rule_Prod_Ip_0.consequence(Rule_Prod_Ip_0.java:10)
      at com.org.Rule_Prod_Ip_0ConsequenceInvoker.evaluate(Rule_Prod_Ip_0ConsequenceInvoker.java:22)
      at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554)
      ... 4 more

Please help! I am very new to drools! Not able to figure out why this error:

I am using eclipse and working on Windows machine. Error above was generated on eclipse console.

Thank you.

M
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