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   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   data);
40  }
41

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