/*******************************************************************************
 * Copyright (c) 2000, 2006 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.ui;

/**
 * Interface for listening to <code>null</code> selection changes.
 * <p>
 * This interface should be implemented by selection listeners
 * that want to be notified when the selection becomes <code>null</code>.
 * It has no methods. It simply indicates the desire to receive
 * <code>null</code> selection events through the existing 
 * <code>selectionChanged</code> method. Either the part or the 
 * selection may be <code>null</code>.
 * </p>
 *
 * @see ISelectionListener#selectionChanged
 * @see IActionDelegate#selectionChanged
 * @see org.eclipse.ui.ISelectionListener
 * 
 * @since 1.0
 */
public interface INullSelectionListener extends ISelectionListener {
}