001 /* SerializablePermission.java -- Basic permissions related to serialization. 002 Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package java.io; 040 041 import java.security.BasicPermission; 042 043 /** 044 * This class models permissions related to serialization. As a subclass 045 * of <code>BasicPermission</code>, this class has permissions that have 046 * a name only. There is no associated action list. 047 * <p> 048 * There are currently two allowable permission names for this class: 049 * <ul> 050 * <li><code>enableSubclassImplementation</code> - Allows a subclass to 051 * override the default serialization behavior of objects.</li> 052 * <li><code>enableSubstitution</code> - Allows substitution of one object 053 * for another during serialization or deserialization.</li> 054 * </ul> 055 * 056 * @see java.security.BasicPermission 057 * 058 * @author Aaron M. Renn (arenn@urbanophile.com) 059 */ 060 public final class SerializablePermission extends BasicPermission 061 { 062 static final long serialVersionUID = 8537212141160296410L; 063 064 /* 065 * Class Variables 066 */ 067 068 private static final String[] legal_names = { "enableSubclassImplementation", 069 "enableSubstitution" }; 070 /* 071 * Constructors 072 */ 073 074 /** 075 * This method initializes a new instance of 076 * <code>SerializablePermission</code> 077 * that has the specified name. 078 * 079 * @param name The name of the permission. 080 * 081 * @exception IllegalArgumentException If the name is not valid for 082 * this class. 083 */ 084 public SerializablePermission(String name) 085 { 086 this(name, null); 087 } 088 089 /** 090 * This method initializes a new instance of 091 * <code>SerializablePermission</code> 092 * that has the specified name and action list. Note that the action list 093 * is unused in this class. 094 * 095 * @param name The name of the permission. 096 * @param actions The action list (unused). 097 * 098 * @exception IllegalArgumentException If the name is not valid for 099 * this class. 100 */ 101 public SerializablePermission(String name, String actions) 102 { 103 super(name, actions); 104 105 for (int i = 0; i < legal_names.length; i++) 106 if (legal_names[i].equals(name)) 107 return; 108 109 throw new IllegalArgumentException("Bad permission name: " + name); 110 } 111 112 } // class SerializablePermission 113