ServiceSample.java

package net.thirdy.blackmarket.samples;
/**

 * Copyright (c) 2008, 2012 Oracle and/or its affiliates.

 * All rights reserved. Use is subject to license terms.

 */

import javafx.application.Application;

import javafx.scene.Group;

import javafx.scene.Scene;

import javafx.stage.Stage;

import java.util.Date;

import javafx.collections.FXCollections;

import javafx.collections.ObservableList;

import javafx.concurrent.Service;

import javafx.concurrent.Task;

import javafx.event.ActionEvent;

import javafx.event.EventHandler;

import javafx.geometry.Insets;

import javafx.scene.control.Button;

import javafx.scene.control.ProgressIndicator;

import javafx.scene.control.TableColumn;

import javafx.scene.control.TableView;

import javafx.scene.control.cell.PropertyValueFactory;

import javafx.scene.layout.Region;

import javafx.scene.layout.StackPane;

import javafx.scene.layout.VBox;

 

/**

 * A sample showing use of a Service to retrieve data in a background thread.

 * Selecting the Refresh button restarts the Service.

 *

 * @see javafx.collections.FXCollections

 * @see javafx.concurrent.Service

 * @see javafx.concurrent.Task

 * @see javafx.scene.control.ProgressIndicator

 * @see javafx.scene.control.TableColumn

 * @see javafx.scene.control.TableView

 */

public class ServiceSample extends Application {

 

    final GetDailySalesService service = new GetDailySalesService();

 

    private void init(Stage primaryStage) {

        Group root = new Group();

        primaryStage.setScene(new Scene(root));

 

        VBox vbox = new VBox(5);

        vbox.setPadding(new Insets(12));

        TableView tableView = new TableView();

        Button button = new Button("Refresh");

        button.setOnAction(new EventHandler<ActionEvent>() {

 

            public void handle(ActionEvent t) {

                service.restart();

            }

        });

        vbox.getChildren().addAll(tableView, button);

 

        Region veil = new Region();

        veil.setStyle("-fx-background-color: rgba(0, 0, 0, 0.4)");

        ProgressIndicator p = new ProgressIndicator();

        p.setMaxSize(150, 150);

 

        //Define table columns

        TableColumn idCol = new TableColumn();

        idCol.setText("ID");

        idCol.setCellValueFactory(new PropertyValueFactory("dailySalesId"));

        tableView.getColumns().add(idCol);

        TableColumn qtyCol = new TableColumn();

        qtyCol.setText("Qty");

        qtyCol.setCellValueFactory(new PropertyValueFactory("quantity"));

        tableView.getColumns().add(qtyCol);

        TableColumn dateCol = new TableColumn();

        dateCol.setText("Date");

        dateCol.setCellValueFactory(new PropertyValueFactory("date"));

        dateCol.setMinWidth(240);

        tableView.getColumns().add(dateCol);

 

 

        p.progressProperty().bind(service.progressProperty());

        veil.visibleProperty().bind(service.runningProperty());

        p.visibleProperty().bind(service.runningProperty());

        tableView.itemsProperty().bind(service.valueProperty());

 

        StackPane stack = new StackPane();

        stack.getChildren().addAll(vbox, veil, p);

 

        root.getChildren().add(stack);

        service.start();

    }

 

    /**

     * A service for getting the DailySales data. This service exposes an

     * ObservableList for convenience when using the service. This

     * <code>results</code> list is final, though its contents are replaced when

     * a service call successfully concludes.

     */

    public class GetDailySalesService extends Service<ObservableList<DailySales>> {

 

        /**

         * Create and return the task for fetching the data. Note that this

         * method is called on the background thread (all other code in this

         * application is on the JavaFX Application Thread!).

         *

         * @return A task

         */

        @Override

        protected Task createTask() {

            return new GetDailySalesTask();

        }

    }

 

    public class GetDailySalesTask extends Task<ObservableList<DailySales>> {       

        @Override protected ObservableList<DailySales> call() throws Exception {

            for (int i = 0; i < 500; i++) {

                updateProgress(i, 500);

                Thread.sleep(5);

            }

            ObservableList<DailySales> sales = FXCollections.observableArrayList();

            sales.add(new DailySales(1, 5000, new Date()));

            sales.add(new DailySales(2, 2473, new Date(0)));

            return sales;

        }

    }

 

    public class DailySales {

 

        private Integer dailySalesId;

        private Integer quantity;

        private Date date;

 

        public DailySales() {

        }

 

        public DailySales(int id, int qty, Date date) {

            this.dailySalesId = id;

            this.quantity = qty;

            this.date = date;

        }

 

        public Integer getDailySalesId() {

            return dailySalesId;

        }

 

        public void setDailySalesId(Integer dailySalesId) {

            this.dailySalesId = dailySalesId;

        }

 

        public Integer getQuantity() {

            return quantity;

        }

 

        public void setQuantity(Integer quantity) {

            this.quantity = quantity;

        }

 

        public Date getDate() {

            return date;

        }

 

        public void setDate(Date date) {

            this.date = date;

        }

    }

 

    @Override public void start(Stage primaryStage) throws Exception {

        init(primaryStage);

        primaryStage.show();

    }

    public static void main(String[] args) { launch(args); }

}