Source for gnu.classpath.jdwp.value.DoubleValue

   1: /* DoubleValue.java -- JDWP wrapper class for a double value
   2:    Copyright (C) 2007 Free Software Foundation
   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., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 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: package gnu.classpath.jdwp.value;
  39: 
  40: import gnu.classpath.jdwp.JdwpConstants;
  41: 
  42: import java.io.DataOutputStream;
  43: import java.io.IOException;
  44: 
  45: /**
  46:  * Wrapper for an double value.
  47:  *
  48:  * @author Kyle Galloway <kgallowa@redhat.com>
  49:  */
  50: public final class DoubleValue
  51:     extends Value
  52: {
  53:   // The double wrapped by this class
  54:   double _value;
  55: 
  56:   /**
  57:    * Create a new DoubleValue from an double
  58:    *
  59:    * @param value the double to wrap
  60:    */
  61:   public DoubleValue(double value)
  62:   {
  63:     super(JdwpConstants.Tag.DOUBLE);
  64:     _value = value;
  65:   }
  66: 
  67:   /**
  68:    * Get the value held in this Value
  69:    *
  70:    * @return the value represented by this Value object
  71:    */
  72:   public double getValue()
  73:   {
  74:     return _value;
  75:   }
  76: 
  77:   /**
  78:    * Return an object representing this type
  79:    *
  80:    * @return an Object represntation of this value
  81:    */
  82:   @Override
  83:   protected Object getObject()
  84:   {
  85:     return new Double(_value);
  86:   }
  87: 
  88:   /**
  89:    * Write the wrapped double to the given DataOutputStream.
  90:    *
  91:    * @param os the output stream to write to
  92:    */
  93:   @Override
  94:   protected void write(DataOutputStream os)
  95:     throws IOException
  96:   {
  97:     os.writeDouble(_value);
  98:   }
  99: }