reactive-programming

问题 I try to make handler and router classes of spring boot webflux. The model class is user class. Codes are @Getter @Setter @AllArgsConstructor @NoArgsConstructor @Document(collection="Users") public class User { @Id private String _id; @Indexed(unique = true) private Long id; @Indexed(unique=true) private String username; private String password; private String email; private String fullname; private String role; } And below is the handler class of webflux project. In register method, I make

问题 I'm currentlty struggling with Springs reactive WebClient calling a Rest-Service. I get an UnsupportedOperationException of the decodeToMono -function from Springs Jaxb2XmlDecoder . public Mono<T> decodeToMono(Publisher<DataBuffer> inputStream, ResolvableType elementType, @Nullable MimeType mimeType, @Nullable Map<String, Object> hints) { throw new UnsupportedOperationException(); } My WebClient call: ResponseEntity<MyAsyncResponse> result = webClient.post() .contentType(MediaType.APPLICATION

问题 Note: After coming up with the answer I reworded the question to make if clearer. Sometimes in a shiny app. I want to make use of a value selected by the user for a widget, as well as the previous value selected for that same widget. This could apply to reactive values derived from user input, where I want the old and the new value. The problem is that if I try to save the value of a widget, then the variable containing that value has to be reactive or it will not update every time the widget

问题 I have a method that emits a list of user ids, indefinitely (not finite). Observable<List<String>> getFriendUserIds() And another method that returns Account data for a specific user id. Observable<Account> getAccount(String userId) I need to get the Account data for all the user ids returned by the getFriendUserIds() method, grouped together in a list corresponding to the user id list. Basically, I need the following, preferably in a non-blocking way. Observable<List<String>> // infinite

问题 I have a list of reminders grouped into sections by completion and date. With data coming from an ObservedObject DataStore called global. I pass a realmBinding to the cell. The cell can update this binding and it will trigger the data store to update. List { // Past Due if self.global.pastDueReminders.count > 0 { Section(header: SectionHeader {}){ ForEach(self.global.pastDueReminders) { reminder in NavigationLink(destination: ReminderDetail( reminder: reminder.realmBinding())) {

问题 Spring's reactor has an interesting feature : Hedging . It means spawning many requests and get the first returned result , and automatically clean other contexts. Josh Long recently has been actively promoting this feature. Googling Spring reactor hedging shows relative results. If anybody is curious , here is the sample code . In short , Flux.first() simplifies all the underlaying hassles , which is very impressive. I wonder how this can be achieved with Kotlin's coroutine and multithread ,

问题 Spring's reactor has an interesting feature : Hedging . It means spawning many requests and get the first returned result , and automatically clean other contexts. Josh Long recently has been actively promoting this feature. Googling Spring reactor hedging shows relative results. If anybody is curious , here is the sample code . In short , Flux.first() simplifies all the underlaying hassles , which is very impressive. I wonder how this can be achieved with Kotlin's coroutine and multithread ,

问题 Hi I am doing some research on RxJS. I am able to use the library simply by referencing it in my browser as such: <script src="https://unpkg.com/@reactivex/rxjs@5.5.6/dist/global/Rx.js"></script> It imports with the global object namespace variable of 'Rx'. I can make observables and do all the fun stuff. Where everything breaks down is when I change the src to point to the latest UMD file like this <script src="https://unpkg.com/rxjs/bundles/rxjs.umd.js"></script> The import seems to not be

问题 Hi I am doing some research on RxJS. I am able to use the library simply by referencing it in my browser as such: <script src="https://unpkg.com/@reactivex/rxjs@5.5.6/dist/global/Rx.js"></script> It imports with the global object namespace variable of 'Rx'. I can make observables and do all the fun stuff. Where everything breaks down is when I change the src to point to the latest UMD file like this <script src="https://unpkg.com/rxjs/bundles/rxjs.umd.js"></script> The import seems to not be

问题 Say I have React component that renders a set of buttons,I store the information for the buttons in an object, with a label and a method to run when they are attached. The buttons do not need to react to any changes, and will never change themselves. Is it a bad practice to store the information for these buttons in the state? These are the current solutions I have come up with so far. 1. Storing Buttons in State class Header extends Component { constructor() { super(); this.state = { buttons