/*******************************************************************************
 *  Copyright (c) 2000, 2009 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.update.operations;

/**
 * Listener for the operation lifecycle. This allows listeners to execute certain code before an operation
 * starts, or after it completes.
 * <p>
 * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
 * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
 * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
 * (repeatedly) as the API evolves.
 * </p>
 * @since 3.0
 * @deprecated The org.eclipse.update component has been replaced by Equinox p2. This
 * provisional API was never promoted to stable API, and may be removed from a future release of the platform.
 */
public interface IOperationListener {
	/**
	 * May be called before an operation starts executing.
	 * @param operation operation to listen to
	 * @param data info specific to the operation
	 * @return not used
	 */
	public boolean beforeExecute(IOperation operation, Object data);
	/**
	 * May be called after an operation finishes executing.
	 * @param operation operation to listen to 
	 * @param data info specific to the operation
	 * @return not used
	 */
	public boolean afterExecute(IOperation operation, Object data);
}