libjava/java/io/VMObjectStreamClass.java

   1 /* VMObjectStreamClass.java -- VM helper functions for ObjectStreamClass
   2    Copyright (C) 2003  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package java.io;
  40
  41 import java.lang.reflect.Field;
  42
  43 final class VMObjectStreamClass
  44 {
  45   /**
  46     * Returns true if CLAZZ has a static class initializer
  47     * (a.k.a. <clinit>).
  48     */
  49   static native boolean hasClassInitializer (Class clazz);
  50
  51   /**
  52    * Sets the value of the specified "double" field, allowing final values
  53    * to be assigned.
  54    *
  55    * @param field Field to set the value.
  56    * @param obj Instance which will have its field set.
  57    * @param val Value to put in the field.
  58    */
  59   static native void setDoubleNative(Field field, Object obj, double val);
  60
  61   /**
  62    * Sets the value of the specified "float" field, allowing final values
  63    * to be assigned.
  64    *
  65    * @param field Field to set the value.
  66    * @param obj Instance which will have its field set.
  67    * @param val Value to put in the field.
  68    */
  69   static native void setFloatNative(Field field, Object obj, float val);
  70
  71   /**
  72    * Sets the value of the specified "long" field, allowing final values
  73    * to be assigned.
  74    *
  75    * @param field Field to set the value.
  76    * @param obj Instance which will have its field set.
  77    * @param val Value to put in the field.
  78    */
  79   static native void setLongNative(Field field, Object obj, long val);
  80
  81   /**
  82    * Sets the value of the specified "int" field, allowing final values
  83    * to be assigned.
  84    *
  85    * @param field Field to set the value.
  86    * @param obj Instance which will have its field set.
  87    * @param val Value to put in the field.
  88    */
  89   static native void setIntNative(Field field, Object obj, int val);
  90
  91   /**
  92    * Sets the value of the specified "short" field, allowing final values
  93    * to be assigned.
  94    *
  95    * @param field Field to set the value.
  96    * @param obj Instance which will have its field set.
  97    * @param val Value to put in the field.
  98    */
  99   static native void setShortNative(Field field, Object obj, short val);
 100
 101   /**
 102    * Sets the value of the specified "char" field, allowing final values
 103    * to be assigned.
 104    *
 105    * @param field Field to set the value.
 106    * @param obj Instance which will have its field set.
 107    * @param val Value to put in the field.
 108    */
 109   static native void setCharNative(Field field, Object obj, char val);
 110
 111   /**
 112    * Sets the value of the specified "byte" field, allowing final values
 113    * to be assigned.
 114    *
 115    * @param field Field to set the value.
 116    * @param obj Instance which will have its field set.
 117    * @param val Value to put in the field.
 118    */
 119   static native void setByteNative(Field field, Object obj, byte val);
 120
 121   /**
 122    * Sets the value of the specified "boolean" field, allowing final values
 123    * to be assigned.
 124    *
 125    * @param field Field to set the value.
 126    * @param obj Instance which will have its field set.
 127    * @param val Value to put in the field.
 128    */
 129   static native void setBooleanNative(Field field, Object obj, boolean val);
 130
 131   /**
 132    * Sets the value of the specified object field, allowing final values
 133    * to be assigned.
 134    *
 135    * @param field Field to set the value.
 136    * @param obj Instance which will have its field set.
 137    * @param val Value to put in the field.
 138    */
 139   static native void setObjectNative(Field field, Object obj, Object val);
 140 }