[rules-users] Rules Hello Evalution

[freejava]

Thanks for the explanation. I think I got it.

Here is my scenario: I have n number of parties in the memory. I have to
perform the validation on each party for the party type. If it fails then
add an error message(just one) to the collection of that particular party. 

So I rewrote the rule as below

rule "041" 
        when 
        Party(partyType != null, partyType.trim() != "",   
                        partyType not in ("MF", "SE", "BY", "ST", "LG",
"CS", "CN"), $e : dentificationGrp.errors) 
    then 
      appendMessage($e, drools) 
end 

Now I have two objects : 
p1 : Party(partyType=*"SE *", List<String> errors) and p2 :
Party(partyType=*"CS "* ,List<String> errors);

After consequence is fired both p1 and p2 has 2 error message of type "041".
where as the expected result should be 1 error message for p1 and p2. How
can I acheive that ?



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