1 /* 2 * Copyright (c) 1996, 1998, 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.rmi.server; 27 28 /** 29 * An <code>RMIFailureHandler</code> can be registered via the 30 * <code>RMISocketFactory.setFailureHandler</code> call. The 31 * <code>failure</code> method of the handler is invoked when the RMI 32 * runtime is unable to create a <code>ServerSocket</code> to listen 33 * for incoming calls. The <code>failure</code> method returns a boolean 34 * indicating whether the runtime should attempt to re-create the 35 * <code>ServerSocket</code>. 36 * 37 * @author Ann Wollrath 38 * @since JDK1.1 39 */ 40 public interface RMIFailureHandler { 41 42 /** 43 * The <code>failure</code> callback is invoked when the RMI 44 * runtime is unable to create a <code>ServerSocket</code> via the 45 * <code>RMISocketFactory</code>. An <code>RMIFailureHandler</code> 46 * is registered via a call to 47 * <code>RMISocketFacotry.setFailureHandler</code>. If no failure 48 * handler is installed, the default behavior is to attempt to 49 * re-create the ServerSocket. 50 * 51 * @param ex the exception that occurred during <code>ServerSocket</code> 52 * creation 53 * @return if true, the RMI runtime attempts to retry 54 * <code>ServerSocket</code> creation 55 * @see java.rmi.server.RMISocketFactory#setFailureHandler(RMIFailureHandler) 56 * @since JDK1.1 57 */ 58 public boolean failure(Exception ex); 59 60 }