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Java > Open Source Codes > org > eclipse > update > operations > IOperationListener


1 /*******************************************************************************
2  * Copyright (c) 2000, 2005 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *
11  *******************************************************************************/

12 package org.eclipse.update.operations;
13
14 /**
15  * Listener for the operation lifecycle. This allows listeners to execute certain code before an operation
16  * starts, or after it completes.
17  * <p>
18  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
19  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
20  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
21  * (repeatedly) as the API evolves.
22  * </p>
23  * @since 3.0
24  */

25 public interface IOperationListener {
26     /**
27      * May be called before an operation starts executing.
28      * @param operation operation to listen to
29      * @param data info specific to the operation
30      * @return not used
31      */

32     public boolean beforeExecute(IOperation operation, Object JavaDoc data);
33     /**
34      * May be called after an operation finishes executing.
35      * @param operation operation to listen to
36      * @param data info specific to the operation
37      * @return not used
38      */

39     public boolean afterExecute(IOperation operation, Object JavaDoc data);
40 }
41
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