/* * Copyright (C) 2007 Sun Microsystems, Inc. All rights reserved. Use is * subject to license terms. */package org.jdesktop.beansbinding;import java.util.EventListener;/** * {@code BindingListeners} are registered on {@code Bindings} or {@code BindingGroups} * to listen for changes to the state of {@code Bindings} * * @see Binding * @see BindingGroup * * @author Shannon Hickey */public interface BindingListener extends EventListener {        /**     * Notification that a {@code Binding} has been bound.     *     * @param binding the {@code Binding}     */    public void bindingBecameBound(Binding binding);    /**     * Notification that a {@code Binding} has been unbound.     *     * @param binding the {@code Binding}     */    public void bindingBecameUnbound(Binding binding);    /**     * Notification that the {@code Binding} attempted to sync the source and     * target, but the sync failed.     *     * @param binding the {@code Binding}     * @param failure the reason the sync failed     */    public void syncFailed(Binding binding, Binding.SyncFailure failure);    /**     * Notification that the source and target of a {@code Binding} have     * been made in sync.     *     * @param binding the {@code Binding}     */    public void synced(Binding binding);    /**     * Notification that the source property of a {@code Binding} has fired     * a {@code PropertyStateEvent} for the {@code Binding's} source object.     *     * @param binding the {@code Binding}     */    public void sourceChanged(Binding binding, PropertyStateEvent event);    /**     * Notification that the target property of a {@code Binding} has fired     * a {@code PropertyStateEvent} for the {@code Binding's} target object.     *     * @param binding the {@code Binding}     */    public void targetChanged(Binding binding, PropertyStateEvent event);}