[rules-users] Extracting an boolean variable

I tried to extract a boolean variable from a class using context. The following is my code in DSL file. context : Context(state == START_UP) Classname(aliasname : booleanVariableName) When I tried to run this statement I got the following error message in DRL file. Error Message: Unable to Create Field Extractor for 'booleanVariableName'. But when I tried to extract a String Variable the Error is cleared. Can Someone explain me about this problem in Drools. Thanks. -- View this message in context: http://www.nabble.com/Extracting-an-boolean-variable-tf3827902.html#a1083... Sent from the drools - user mailing list archive at Nabble.com.