SerializablePermission.java 3.9 KB

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  1. /* SerializablePermission.java -- Basic permissions related to serialization.
  2. Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
  3. This file is part of GNU Classpath.
  4. GNU Classpath is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 2, or (at your option)
  7. any later version.
  8. GNU Classpath is distributed in the hope that it will be useful, but
  9. WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with GNU Classpath; see the file COPYING. If not, write to the
  14. Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  15. 02110-1301 USA.
  16. Linking this library statically or dynamically with other modules is
  17. making a combined work based on this library. Thus, the terms and
  18. conditions of the GNU General Public License cover the whole
  19. combination.
  20. As a special exception, the copyright holders of this library give you
  21. permission to link this library with independent modules to produce an
  22. executable, regardless of the license terms of these independent
  23. modules, and to copy and distribute the resulting executable under
  24. terms of your choice, provided that you also meet, for each linked
  25. independent module, the terms and conditions of the license of that
  26. module. An independent module is a module which is not derived from
  27. or based on this library. If you modify this library, you may extend
  28. this exception to your version of the library, but you are not
  29. obligated to do so. If you do not wish to do so, delete this
  30. exception statement from your version. */
  31. package java.io;
  32. import java.security.BasicPermission;
  33. /**
  34. * This class models permissions related to serialization. As a subclass
  35. * of <code>BasicPermission</code>, this class has permissions that have
  36. * a name only. There is no associated action list.
  37. * <p>
  38. * There are currently two allowable permission names for this class:
  39. * <ul>
  40. * <li><code>enableSubclassImplementation</code> - Allows a subclass to
  41. * override the default serialization behavior of objects.</li>
  42. * <li><code>enableSubstitution</code> - Allows substitution of one object
  43. * for another during serialization or deserialization.</li>
  44. * </ul>
  45. *
  46. * @see java.security.BasicPermission
  47. *
  48. * @author Aaron M. Renn (arenn@urbanophile.com)
  49. */
  50. public final class SerializablePermission extends BasicPermission
  51. {
  52. static final long serialVersionUID = 8537212141160296410L;
  53. /*
  54. * Class Variables
  55. */
  56. private static final String[] legal_names = { "enableSubclassImplementation",
  57. "enableSubstitution" };
  58. /*
  59. * Constructors
  60. */
  61. /**
  62. * This method initializes a new instance of
  63. * <code>SerializablePermission</code>
  64. * that has the specified name.
  65. *
  66. * @param name The name of the permission.
  67. *
  68. * @exception IllegalArgumentException If the name is not valid for
  69. * this class.
  70. */
  71. public SerializablePermission(String name)
  72. {
  73. this(name, null);
  74. }
  75. /**
  76. * This method initializes a new instance of
  77. * <code>SerializablePermission</code>
  78. * that has the specified name and action list. Note that the action list
  79. * is unused in this class.
  80. *
  81. * @param name The name of the permission.
  82. * @param actions The action list (unused).
  83. *
  84. * @exception IllegalArgumentException If the name is not valid for
  85. * this class.
  86. */
  87. public SerializablePermission(String name, String actions)
  88. {
  89. super(name, actions);
  90. for (int i = 0; i < legal_names.length; i++)
  91. if (legal_names[i].equals(name))
  92. return;
  93. throw new IllegalArgumentException("Bad permission name: " + name);
  94. }
  95. } // class SerializablePermission