You can obviously set the values in Entity without doing anything except using a listener in JavaFX. If you want to go the other way you can add java.beans.PropertyChangeSupport. It's not in a javafx package.
package bindpojo;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class BindPojo extends Application {
StringProperty fxString = new SimpleStringProperty();
StringProperty tmpString = new SimpleStringProperty();
@Override
public void start(Stage primaryStage) {
VBox vbox = new VBox();
TextField text = new TextField();
Label label1 = new Label();
Label label2 = new Label();
Entity entity = new Entity("");
vbox.getChildren().addAll(text,label1,label2);
Scene scene = new Scene(vbox, 300, 200);
primaryStage.setScene(scene);
primaryStage.show();
fxString.bindBidirectional(text.textProperty());
fxString.addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
entity.setValue(newValue);
label1.setText(entity.getValue());
}
});
entity.addPropertyChangeListener(new PropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent evt) {
tmpString.set(evt.getNewValue().toString());
}
});
label2.textProperty().bind(tmpString);
}
public class Entity {
private String m_Value;
private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
public Entity(String value) { m_Value = value; }
public String getValue() { return m_Value; }
public void setValue(String value) {
pcs.firePropertyChange("m_Value", m_Value, value);
m_Value = value;
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
pcs.addPropertyChangeListener(listener);
}
}
}
You don't really need the tmpString, I just used used it in case you want to have Entity resemble a javafx string property. You could just set the label in the property change listener instead of setting a string property and then binding to it.