| /******************************************************************************* |
| * Copyright (c) 2008, 2009 Peter Centgraf 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: |
| * Peter Centgraf - initial API and implementation (bug 251575) |
| *******************************************************************************/ |
| package org.eclipse.jface.viewers; |
| |
| /** |
| * Adds efficient element indexing support to ILazyContentProvider. |
| * |
| * @since 3.5 |
| */ |
| public interface IIndexableLazyContentProvider extends ILazyContentProvider { |
| /** |
| * Find the row index of the parameter element in the set of contents provided |
| * by this object. Under normal usage, this method will only be used to |
| * implement <code>StructuredViewer#setSelection(ISelection)</code> more |
| * efficiently. |
| * |
| * @param element the element to find within the contents served here |
| * @return the zero-based index of the element, or -1 if the element is not found |
| */ |
| public int findElement(Object element); |
| } |
