[rules-users] Function Call in LHS

Hello guys! This is my first question for the list. I've defined a function in my DRL file to evaluate if a user can do a specific operation in my system. This function returns a boolean result. My question is if I can use this function in the test of LHS. For example: rule "Cliente pode alugar" when eval(teste) then System.out.println("XXXXXX"); end function boolean teste( ) { return true; } Please, if anybody has some help, send me. Thanks! Rafael Alcemar