VMObjectStreamClass.java 4.9 KB

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  1. /* VMObjectStreamClass.java -- VM helper functions for ObjectStreamClass
  2. Copyright (C) 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.lang.reflect.Field;
  33. final class VMObjectStreamClass
  34. {
  35. /**
  36. * Returns true if CLAZZ has a static class initializer
  37. * (a.k.a. <clinit>).
  38. */
  39. static native boolean hasClassInitializer (Class clazz);
  40. /**
  41. * Sets the value of the specified "double" field, allowing final values
  42. * to be assigned.
  43. *
  44. * @param field Field to set the value.
  45. * @param obj Instance which will have its field set.
  46. * @param val Value to put in the field.
  47. */
  48. static native void setDoubleNative(Field field, Object obj, double val);
  49. /**
  50. * Sets the value of the specified "float" field, allowing final values
  51. * to be assigned.
  52. *
  53. * @param field Field to set the value.
  54. * @param obj Instance which will have its field set.
  55. * @param val Value to put in the field.
  56. */
  57. static native void setFloatNative(Field field, Object obj, float val);
  58. /**
  59. * Sets the value of the specified "long" field, allowing final values
  60. * to be assigned.
  61. *
  62. * @param field Field to set the value.
  63. * @param obj Instance which will have its field set.
  64. * @param val Value to put in the field.
  65. */
  66. static native void setLongNative(Field field, Object obj, long val);
  67. /**
  68. * Sets the value of the specified "int" field, allowing final values
  69. * to be assigned.
  70. *
  71. * @param field Field to set the value.
  72. * @param obj Instance which will have its field set.
  73. * @param val Value to put in the field.
  74. */
  75. static native void setIntNative(Field field, Object obj, int val);
  76. /**
  77. * Sets the value of the specified "short" field, allowing final values
  78. * to be assigned.
  79. *
  80. * @param field Field to set the value.
  81. * @param obj Instance which will have its field set.
  82. * @param val Value to put in the field.
  83. */
  84. static native void setShortNative(Field field, Object obj, short val);
  85. /**
  86. * Sets the value of the specified "char" field, allowing final values
  87. * to be assigned.
  88. *
  89. * @param field Field to set the value.
  90. * @param obj Instance which will have its field set.
  91. * @param val Value to put in the field.
  92. */
  93. static native void setCharNative(Field field, Object obj, char val);
  94. /**
  95. * Sets the value of the specified "byte" field, allowing final values
  96. * to be assigned.
  97. *
  98. * @param field Field to set the value.
  99. * @param obj Instance which will have its field set.
  100. * @param val Value to put in the field.
  101. */
  102. static native void setByteNative(Field field, Object obj, byte val);
  103. /**
  104. * Sets the value of the specified "boolean" field, allowing final values
  105. * to be assigned.
  106. *
  107. * @param field Field to set the value.
  108. * @param obj Instance which will have its field set.
  109. * @param val Value to put in the field.
  110. */
  111. static native void setBooleanNative(Field field, Object obj, boolean val);
  112. /**
  113. * Sets the value of the specified object field, allowing final values
  114. * to be assigned.
  115. *
  116. * @param field Field to set the value.
  117. * @param obj Instance which will have its field set.
  118. * @param val Value to put in the field.
  119. */
  120. static native void setObjectNative(Field field, Object obj, Object val);
  121. }