question: configure a default prefix to add to message destinations in cases where a method is not annotated with sendto @sendto or does not specify any destinationsthrough the annotation 's value attribute . by default , the prefix is set to '' / topic '' . concode_field_sep PropertyPlaceholderHelper placeholderHelper concode_elem_sep SimpMessageSendingOperations messagingTemplate concode_elem_sep String defaultDestinationPrefix concode_elem_sep String defaultUserDestinationPrefix concode_elem_sep Map<String,String> vars concode_elem_sep MessageHeaderInitializer headerInitializer concode_elem_sep boolean annotationRequired concode_field_sep Object findAnnotation concode_elem_sep void handleReturnValue concode_elem_sep MessageHeaders createHeaders concode_elem_sep String resolvePlaceholder concode_elem_sep String getDefaultUserDestinationPrefix concode_elem_sep SendToUser getSendToUser concode_elem_sep SendTo getSendTo concode_elem_sep void setHeaderInitializer concode_elem_sep boolean supportsReturnType concode_elem_sep String[] getTargetDestinations concode_elem_sep MessageHeaderInitializer getHeaderInitializer concode_elem_sep PlaceholderResolver initVarResolver concode_elem_sep String getDefaultDestinationPrefix concode_elem_sep String getUserName concode_elem_sep String toString concode_elem_sep void setDefaultUserDestinationPrefix
target: void function ( String arg0 ) { this . defaultDestinationPrefix = arg0 ; }