How to use

getOrientation

method

in

javafx.scene.control.ScrollBar

ObservableList<String> names = FXCollections.observableArrayList("1","2","3","4","5","6","7");
 final ListView<String> listView = new ListView<String>(names);
 stage.setOnShown(new EventHandler<WindowEvent>(){
   boolean hasRun = false;
   @Override
   public void handle(WindowEvent arg0) {
     if(!hasRun){
       for (Node node: listView.lookupAll(".scroll-bar")) {
         if (node instanceof ScrollBar) {
           final ScrollBar bar = (ScrollBar) node;
           bar.valueProperty().addListener(new ChangeListener<Number>() {
             @Override public void changed(ObservableValue<? extends Number> value, Number oldValue, Number newValue) {
               System.out.println(bar.getOrientation() + " " + newValue);
             }
           });
         }
       }
       hasRun = true;
     }
   }});

  @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
    for (Node child : getChildren()) {
      if (child.getStyleClass().get(0).equals("increment-button") || child.getStyleClass().get(0).equals(
          "decrement-button")) {
        if (getSkinnable().getOrientation() == Orientation.VERTICAL) {
          child.setStyle("-fx-padding: 0.0em " + ((endWidth - startWidth) * newValue.doubleValue() + startWidth) + "pt 0.0em 0.0em;}");
        } else if (getSkinnable().getOrientation() == Orientation.HORIZONTAL) {
          child.setStyle("-fx-padding: " + ((endWidth - startWidth) * newValue.doubleValue() + startWidth) + "pt  0.0em 0.0em 0.0em;}");
        }
      }
    }
  }
});

  growScrollbarTransition.stop();
if (getSkinnable().getOrientation() == Orientation.VERTICAL) {
  getSkinnable().setStyle(" -fx-padding: -1.0 0.0 -1.0 0.0;");
} else {
    if (getSkinnable().getOrientation() == Orientation.VERTICAL) {
      child.setStyle("-fx-background-color: linear-gradient(rgb(238.0, 238.0, 238.0, 0.8) 0.0%, rgb(255.0, 255.0, 255.0, 0.8) 100.0%);" + "-fx-border-width: 0.0 0.0 0.0 1.0;" + "-fx-border-insets: 0.0 0.0 0.0 -1.0;" + "-fx-border-color: rgb(198.0, 198.0, 198.0);");
    } else if (getSkinnable().getOrientation() == Orientation.HORIZONTAL) {
      child.setStyle("-fx-background-color: linear-gradient(rgb(238.0, 238.0, 238.0, 0.8) 0.0%, rgb(255.0, 255.0, 255.0, 0.8) 100.0%);" + "-fx-border-width: 1.0 0.0 0.0 0.0;" + "-fx-border-insets: -1.0 0.0 0.0 0.0;" + "-fx-border-color: rgb(198.0, 198.0, 198.0);");
    if (getSkinnable().getOrientation() == Orientation.VERTICAL) {
      child.setStyle("-fx-background-radius: 6.0;" + "-fx-background-insets: 0.0 2.0 0.0 2.0;");
    } else if (getSkinnable().getOrientation() == Orientation.HORIZONTAL) {
      child.setStyle("-fx-background-radius: 6.0;" + "-fx-background-insets: 2.0 0.0 2.0 0.0;");
    if (getSkinnable().getOrientation() == Orientation.VERTICAL) {
      child.setStyle("-fx-padding: 0.0em 6.0pt 0.0em 0.0em");
    } else if (getSkinnable().getOrientation() == Orientation.HORIZONTAL) {
      child.setStyle("-fx-padding: 6.0pt 0.0em 0.0em 0.0em");

if (node instanceof ScrollBar) {
  ScrollBar bar = (ScrollBar) node;
  if (bar.getOrientation().equals(Orientation.VERTICAL)) {
    scrollbar = bar;