Contact to javax.beans.binding
This little example will show you how to bind a JTextField to a name property of a Person with Beans Binding (JSR-295). First the Person:
package com.tutego.binding;import java.beans.PropertyChangeListener;import java.beans.PropertyChangeSupport;public class Person{ private PropertyChangeSupport pcs = new PropertyChangeSupport( this ); private String name = ""; public void addPropertyChangeListener( PropertyChangeListener x ) { pcs.addPropertyChangeListener( x ); } public void removePropertyChangeListener( PropertyChangeListener x ) { pcs.removePropertyChangeListener( x ); } public String getName() { return name; } public void setName( String name ) { String old = getName(); this.name = name; pcs.firePropertyChange( "name", old, getName() ); System.out.println( "Changed name!" ); }}The code for the JavaBean Person is a litte bit cumbersome because of the PropertyChangeListener who will notify the Binding Framework if the model change.
package com.tutego.binding;import javax.beans.binding.BindingContext;import javax.swing.JFrame;import javax.swing.JTextField;public class BindingDemo{ public static void main( String[] args ) { Person p = new Person(); JTextField tf = new JTextField(); BindingContext bindingContext = new BindingContext(); bindingContext.addBinding( p, "${name}", tf, "text" ); bindingContext.bind(); JFrame f = new JFrame(); f.add( tf ); f.pack(); f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); f.setVisible( true ); p.setName( "Christian Ullenboom" ); }}Swing on the other side will although notify the model if the user type text in the text field and press Return. This will change the model.