| /******************************************************************************* |
| * Copyright (c) 2008 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.core.commands; |
| |
| /** |
| * Extend the IHandler interface to provide some context for isEnabled() |
| * requests. Clients should use {@link AbstractHandler} unless they need to |
| * provide their own listener mechanism. |
| * |
| * @since 3.4 |
| * @see AbstractHandler |
| */ |
| public interface IHandler2 extends IHandler { |
| /** |
| * Called by the framework to allow the handler to update its enabled state. |
| * |
| * @param evaluationContext |
| * the state to evaluate against. May be <code>null</code> |
| * which indicates that the handler can query whatever model that |
| * is necessary. This context must not be cached. |
| */ |
| public void setEnabled(Object evaluationContext); |
| } |
