[rules-users] Ask for help on rule authoring

[Benson Fung]

Hi,

I got the following rule problem.

The rule is like :

1.	|	rule "Rule1"
2.	|	    dialect "mvel"
3.	|	    when
4.	|	        ad : ApplicationData( age == "null" , age.size() == 0)
5.	|	    then
6.	|	        ad.setReturnMsg( "age should not be null or empty" );
7.	|	end

where setReturnMsg is a method of ApplicationData Fact();

However, I got the validation error :

[Rule1] [ERR 101] Line 4:49 no viable alternative at input ')' in rule
"Rule1" in pattern ApplicationData
[Rule1] [ERR 102] Line 4:51 mismatched input '==' expecting ')' in
rule "Rule1" in pattern ApplicationData

Please help what the problem is.


Thanks