Properties and Bindings - JavaFX 8: A Definitive Guide to Building Desktop, Mobile, and Embedded Java Clients - page 179

import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.effect.Light;
import javafx.scene.effect.Lighting;
import javafx.scene.paint.Color;
public class SelectBindingExample {
public static void main(String[] args) {
ObjectProperty<Lighting> root = new SimpleObjectProperty<>(new Lighting());
final ObjectBinding<Color> selectBinding = Bindings.select(root, "light", "color");
selectBinding.addListener(new ChangeListener<Color>() {
@Override
public void changed(ObservableValue<? extends Color> observableValue, Color
oldValue, Color newValue) {
System.out.println("\tThe color changed:\n\t\told color = " +
oldValue + ",\n\t\tnew color = " + newValue);
}
});
System.out.println("firstLight is black.");
Light firstLight = new Light.Point();
firstLight.setColor(Color.BLACK);
System.out.println("secondLight is white.");
Light secondLight = new Light.Point();
secondLight.setColor(Color.WHITE);
System.out.println("firstLighting has firstLight.");
Lighting firstLighting = new Lighting();
firstLighting.setLight(firstLight);
System.out.println("secondLighting has secondLight.");
Lighting secondLighting = new Lighting();
secondLighting.setLight(secondLight);
System.out.println("Making root observe firstLighting.");
root.set(firstLighting);
System.out.println("Making root observe secondLighting.");
root.set(secondLighting);
System.out.println("Changing secondLighting's light to firstLight");
secondLighting.setLight(firstLight);
System.out.println("Changing firstLight's color to red");
firstLight.setColor(Color.RED);
}
}