void function ( ) { }
invoked to request the service to stop . concode_field_sep Service delegate concode_field_sep void doStop concode_elem_sep Future<State> start concode_elem_sep void run concode_elem_sep State stopAndWait concode_elem_sep void shutDown concode_elem_sep State startAndWait concode_elem_sep Future<State> stop concode_elem_sep boolean isRunning concode_elem_sep void startUp concode_elem_sep Executor executor concode_elem_sep void doStart concode_elem_sep String toString concode_elem_sep State state