DownloadListener.java :  » IDE-Netbeans » nbi » org » netbeans » installer » downloader » Java Open Source

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU General
 * Public License Version 2 only ("GPL") or the Common Development and Distribution
 * License("CDDL") (collectively, the "License"). You may not use this file except in
 * compliance with the License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html or nbbuild/licenses/CDDL-GPL-2-CP. See the
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 * each file and include the License file at nbbuild/licenses/CDDL-GPL-2-CP.  Sun
 * designates this particular file as subject to the "Classpath" exception as
 * provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the License Header,
 * with the fields enclosed by brackets [] replaced by your own identifying
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 * Contributor(s):
 * 
 * The Original Software is NetBeans. The Initial Developer of the Original Software
 * is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun Microsystems, Inc. All
 * Rights Reserved.
 * 
 * If you wish your version of this file to be governed by only the CDDL or only the
 * GPL Version 2, indicate your decision by adding "[Contributor] elects to include
 * this software in this distribution under the [CDDL or GPL Version 2] license." If
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 * distribute your version of this file under either the CDDL, the GPL Version 2 or
 * to extend the choice of license to its licensees as provided above. However, if
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 */

package org.netbeans.installer.downloader;

/**
 *
 * @author Danila_Dugurov
 */

/**
 * be aware of: If listener contract will be changed - analize carefully all fired events
 * Some pices of code based on reflection and invocation, so
 * NoSuchMethodException may occures.(It's implementation pitfalls)
 */
public interface DownloadListener {
  
  /**
   * notification that pumping was update means that some pice of bytes downloaded
   * or some meta data such as real url, output file name obtain from server.
   */
  void pumpingUpdate(String id);
  
  /**
   * This property was separate from pumping update because it's describe pumping as process
   * and in pumping update - notify that pumping was changed as entity.
   */
  void pumpingStateChange(String id);
  
  void pumpingAdd(String id);
  void pumpingDelete(String id);
  
  void queueReset();
  
  /**
   * notification that downloader invoked work.
   */
  void pumpsInvoke();
  
  
  /**
   * notification that downloader stoped work.
   */
  void pumpsTerminate();
}
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