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/*******************************************************************************
* Copyright (c) 2008, 2015 Peter Centgraf and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* 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 StructuredViewer#setSelection(ISelection) 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);
}