1/* 2 * Copyright (c) 1996, 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 26package sun.rmi.transport; 27 28public class TransportConstants { 29 /** Transport magic number: "JRMI"*/ 30 public static final int Magic = 0x4a524d49; 31 /** Transport version number */ 32 public static final short Version = 2; 33 34 /** Connection uses stream protocol */ 35 public static final byte StreamProtocol = 0x4b; 36 /** Protocol for single operation per connection; no ack required */ 37 public static final byte SingleOpProtocol = 0x4c; 38 /** Connection uses multiplex protocol */ 39 public static final byte MultiplexProtocol = 0x4d; 40 41 /** Ack for transport protocol */ 42 public static final byte ProtocolAck = 0x4e; 43 /** Negative ack for transport protocol (protocol not supported) */ 44 public static final byte ProtocolNack = 0x4f; 45 46 /** RMI call */ 47 public static final byte Call = 0x50; 48 /** RMI return */ 49 public static final byte Return = 0x51; 50 /** Ping operation */ 51 public static final byte Ping = 0x52; 52 /** Acknowledgment for Ping operation */ 53 public static final byte PingAck = 0x53; 54 /** Acknowledgment for distributed GC */ 55 public static final byte DGCAck = 0x54; 56 57 /** Normal return (with or without return value) */ 58 public static final byte NormalReturn = 0x01; 59 /** Exceptional return */ 60 public static final byte ExceptionalReturn = 0x02; 61} 62