| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.action; |
| |
| import org.eclipse.jface.util.Assert; |
| |
| /** |
| * Abstract superclass for group marker classes. |
| * <p> |
| * This class is not intended to be subclassed outside the framework. |
| * </p> |
| */ |
| public abstract class AbstractGroupMarker extends ContributionItem { |
| /** |
| * Constructor for use by subclasses. |
| */ |
| protected AbstractGroupMarker() { |
| } |
| /** |
| * Create a new group marker with the given name. |
| * The group name must not be <code>null</code> or the empty string. |
| * The group name is also used as the item id. |
| * |
| * @param groupName the name of the group |
| */ |
| protected AbstractGroupMarker(String groupName) { |
| super(groupName); |
| Assert.isTrue(groupName != null && groupName.length() > 0); |
| } |
| /** |
| * Returns the group name. |
| * |
| * @return the group name |
| */ |
| public String getGroupName() { |
| return getId(); |
| } |
| /** |
| * The <code>AbstractGroupMarker</code> implementation of this <code>IContributionItem</code> |
| * method returns <code>true</code> iff the id is not <code>null</code>. Subclasses may override. |
| */ |
| public boolean isGroupMarker() { |
| return getId() != null; |
| } |
| } |