update/org.eclipse.update.core/src/org/eclipse/update/operations/IOperation.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

package org.eclipse.update.operations;

import java.lang.reflect.*;

import org.eclipse.core.runtime.*;

/**
 * Base update manager operation.
 * <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
 */
public interface IOperation {
	/**
	 * Returns true when the operation has been processed.
	 * @return
	 */
	public abstract boolean isProcessed();
	/**
	 * Marks the operation as processed.
	 */
	public abstract void markProcessed();
	/**
	 * Executes operation.
	 * @param pm Progress monitor for the operation
	 * @param listener Operation listener
	 * @return true if operation was successful and a restart is needed.
	 * @throws CoreException
	 * @throws InvocationTargetException
	 */
	public abstract boolean execute(IProgressMonitor pm, IOperationListener listener) throws CoreException, InvocationTargetException;
}