UnexecutableCommand.java

/*******************************************************************************
 * Copyright (c) 2000, 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.gef.commands;

/**
 * A Command which can never be executed
 */
public final class UnexecutableCommand
	extends Command
{

/**
 * The singleton instance
 */
public static final UnexecutableCommand INSTANCE = new UnexecutableCommand();

private UnexecutableCommand() { }

/**
 * @return <code>false</code>
 */
public boolean canExecute() {
	return false;
}

/**
 * @return <code>false</code>
 */
public boolean canUndo() {
	return false;
}

}