| /******************************************************************************* |
| * Copyright (c) 2012 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.common.ui.internal.jface; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| |
| /** |
| * Convenience implementation of {@link ITreeContentProvider}. |
| */ |
| public class TreeContentProvider |
| extends StructuredContentProvider |
| implements ITreeContentProvider |
| { |
| private static final ITreeContentProvider NULL_PROVIDER = new TreeContentProvider(); |
| |
| public static ITreeContentProvider nullProvider() { |
| return NULL_PROVIDER; |
| } |
| |
| @Override |
| public Object[] getElements(Object input) { |
| // typical tree implementation |
| return this.getChildren(input); |
| } |
| |
| public Object getParent(Object element) { |
| return null; |
| } |
| |
| public boolean hasChildren(Object element) { |
| return false; |
| } |
| |
| public Object[] getChildren(Object element) { |
| return EMPTY_ARRAY; |
| } |
| } |