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
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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