/* * %W% %E% * * Copyright  1990-2006 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER *  * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 only, as published by the Free Software Foundation.  *  * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is * included at /legal/license.txt).  *  * You should have received a copy of the GNU General Public License * version 2 along with this work; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA  *  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 or visit www.sun.com if you need additional * information or have any questions.  */package com.sun.jump.module.download;/** * <code>JUMPDownloadProgressListener</code> allows a component to observe * the download progress. The interface is typically implemented by UI * elements (like a progress bar/gauge) to show the state of the download * progress. */public interface JUMPDownloadProgressListener {    /**     * Called before the downloading of data is about to start.     */    public void downloadStarted();        /**     * Called after the download has been cancelled. The cancellation could     * be driven by the user or by the system. If this method is called then     * <code>downloadCompleted()</code> will not be invoked.     */    public void downloadCancelled();        /**     * Called to indicate that the download has been complete. This indicates     * that there was no error in the download process.     */    public void downloadCompleted();        /**     * Called as the data gets downloaded. The frequency of the call depends     * on the <i>updatePercent</i> argument passed during the registration     * of the listener.      *     * @param percent the percentage of the data that has been downloaded      *        from the start of the download process. It starts from 0 and     *        and goes upto 100 typically.     */    public void dataDownloaded(int percent);}