/*******************************************************************************
* Copyright (c) 2006, 2007 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.internal.databinding.observable.tree;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
/**
* A context sensitive viewer update request.
*
* @since 1.0
*/
public interface IViewerUpdate extends IProgressMonitor {
/**
* Sets the status of this request, possibly <code>null</code>.
* When a request fails, the status indicates why the request failed.
* A <code>null</code> status is considered to be successful.
*
* @param status request status
*/
public void setStatus(IStatus status);
/**
* Returns the status of this request, or <code>null</code>.
*
* @return request status or <code>null</code>
*/
public IStatus getStatus();
/**
* Returns the model element corresponding to the given tree path.
* Returns the root element for the empty path.
*
* @param path viewer tree path
* @return corresponding model element
*/
public Object getElement(TreePath path);
}