Bug 147530 [DataBinding] Provide event objects for change listeners
Before data binding goes 1.0 it would be wise to provide EventObjects for the following listeners to ensure that the API doesn't preclude future expansion of the values supplied to listeners. Interfaces that would be affected: * IValueChangeListener * IValueChangingListener * IListChangeListener * ISetChangeListener * IMappingChangeListener
bundles/org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/DetailObservableValue.java
private boolean updating = false;
	private IValueChangeListener innerChangeListener = new IValueChangeListener() {
		public void handleValueChange(IObservableValue source, ValueDiff diff) {
			if (!updating) {
				fireValueChange(diff);
			}
		}
	};
	private Object currentOuterValue;
	private IObservableValue innerObservableValue;
	private Object detailType;
	private IObservableValue outerObservableValue;
	private IObservableFactory factory;
	/**
	 * @param realm 
	 * @param factory
	 * @param outerObservableValue
	 * @param detailType
	 */
	public DetailObservableValue(IObservableFactory factory,
			IObservableValue outerObservableValue, Object detailType) {
		super(outerObservableValue.getRealm());
		this.factory = factory;
		this.detailType = detailType;
		this.outerObservableValue = outerObservableValue;
		updateInnerObservableValue(outerObservableValue);