Accessing Web Services - JavaFX 8: A Definitive Guide to Building Desktop, Mobile, and Embedded Java Clients - page 507

import javafx.concurrent.Worker;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class StackOverflow4 extends Application {
@Override
public void start(Stage primaryStage) throws IOException {
ListView<Question> listView = new ListView<>();
listView.setItems(getObservableList());
listView.setCellFactory(l -> new QuestionCell());
StackPane root = new StackPane();
root.getChildren().add(listView);
Scene scene = new Scene(root, 500, 300);
primaryStage.setTitle("StackOverflow List");
primaryStage.setScene(scene);
primaryStage.show();
System.out.println (« Done with the setup ») ;
}
ObservableList<Question> getObservableList() throws IOException {
String url = " http://api.stackexchange.com/2.2/search?order=desc&sort=activity&tagged=javafx
&site=stackoverflow " ;
Service<ObservableList<Question>>service = new QuestionRetrievalService(url);
ObservableList<Question> answer = FXCollections.observableArrayList();
service.stateProperty().addListener(new InvalidationListener() {
@Override
public void invalidated(Observable observable) {
System.out.println("value is now "+service.getState());
if (service.getState().equals(Worker.State.SUCCEEDED)) {
answer.addAll(service.getValue());
}
}
});
System.out.println("START SERVICE = "+service.getTitle());
service.start();
return answer;
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}