Flex :: Occurrence Of ResultEvent Event In Remoting A Spring Object?

In my attempt to learn flex remoting I came across thisflexService.getRules.addEventListener(ResultEvent.RESULT, loadRules);here flexService is a remote java object . me that when esultEvent.RESULT will occur. On studying about ResultEvent in AS document it states as The event that indicates an RPC operation has successfully returned a resultSo keeping that in mind my guess is ResultEvent will be fired when flexService.getRules method will successfully return a list of object,where flexService is object of remote class FlexService having getRules function which returns list of object, Can any one please tell how exactly it works