1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.awt.desktop; 27 28 /** 29 * An implementor determines if requests to quit this application should proceed or cancel. 30 * 31 * @see java.awt.Desktop#setQuitHandler(java.awt.desktop.QuitHandler) 32 * @see java.awt.Desktop#setQuitStrategy(java.awt.desktop.QuitStrategy) 33 * 34 * @since 9 35 */ 36 public interface QuitHandler { 37 /** 38 * Invoked when the application is asked to quit. 39 * 40 * Implementors must call either {@link QuitResponse#cancelQuit()}, {@link QuitResponse#performQuit()}, or ensure the application terminates. 41 * The process (or log-out) requesting this app to quit will be blocked until the {@link QuitResponse} is handled. 42 * Apps that require complex UI to shutdown may call the {@link QuitResponse} from any thread. 43 * Your app may be asked to quit multiple times before you have responded to the initial request. 44 * This handler is called each time a quit is requested, and the same {@link QuitResponse} object is passed until it is handled. 45 * Once used, the {@link QuitResponse} cannot be used again to change the decision. 46 * 47 * @param e the request to quit this application. 48 * @param response the one-shot response object used to cancel or proceed with the quit action. 49 */ 50 public void handleQuitRequestWith(final QuitEvent e, final QuitResponse response); 51 }