Bug 126839 [DataBinding] IObservable refactoring
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/TreeBinding.java
/*******************************************************************************
 * Copyright (c) 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jface.internal.databinding;
import java.util.Collection;
import org.eclipse.jface.internal.provisional.databinding.BindingEvent;
import org.eclipse.jface.internal.provisional.databinding.BindingException;
import org.eclipse.jface.internal.provisional.databinding.ChangeEvent;
import org.eclipse.jface.internal.provisional.databinding.IChangeListener;
import org.eclipse.jface.internal.provisional.databinding.IUpdatableTree;
/**
 * TreeBinding facts:
 *    o No Conversion, Validation on various tree elements
 *    o On a bind, only root elements will be pushed from the model to the target
 *    o <code>ChangeEvent.VIRTUAL</code> event will request children as needed
 */
public class TreeBinding extends Binding {