[rules-users] Using global variable in DRL file

[zeeshan]

Hi All !

I am trying use global variable in DRL file but when I am using it, gives
Exception. Please have a look at the DRL file -----




package com.drools.rules
import com.drools.facts.*; 
*global CSVBeanAgent csvAgent;*  [here I have declared the Global variable]



rule "Calculating Agent APE"
	
	salience 35
	no-loop true
	when
	
		$csvPolicy : CSVBeanPolicy()
		//$csvAgent : CSVBeanAgent()
	then
	  
	  
   System.out.println("For agent --->zzzzz in rule setting premium form
rate>>>>"+$csvPolicy.getPremiumMode());
    double policyAPE=$csvPolicy.getPolicyAPE();
    System.out.println("policyAPE>>>>>"+policyAPE);
    *System.out.println("Agent
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz>>>>>"+csvAgent);*
    double agentAPE=0.0;
      if(csvAgent.getAgentNo()==$csvPolicy.getAgentNo()){
      System.out.println("inside if");
     agentAPE=agentAPE+policyAPE;
      }
      csvAgent.setAgentAPE(agentAPE);
	   System.out.println("AgentAPE>>>>>>>>>>>>>>>"+csvAgent.getAgentAPE());
	   update($csvPolicy);
     
end


Above is my rule....the Bold one is I am trying to the value of *csvAgent*,
it gives *null* value. Please help me in finding the solution i.e. How to
declare the global variable and how to use it in DRL file.

Thanks !


 



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