| 1 |
775 |
jeremybenn |
/* DoubleHolder.java --
|
| 2 |
|
|
Copyright (C) 2005, 2006 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., 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 |
|
|
|
| 39 |
|
|
package org.omg.CORBA;
|
| 40 |
|
|
|
| 41 |
|
|
import gnu.CORBA.typecodes.PrimitiveTypeCode;
|
| 42 |
|
|
|
| 43 |
|
|
import org.omg.CORBA.portable.InputStream;
|
| 44 |
|
|
import org.omg.CORBA.portable.OutputStream;
|
| 45 |
|
|
import org.omg.CORBA.portable.Streamable;
|
| 46 |
|
|
|
| 47 |
|
|
/**
|
| 48 |
|
|
* A holder for CORBA <code>double</code> that is mapped into
|
| 49 |
|
|
* java <code>double</code>.
|
| 50 |
|
|
*
|
| 51 |
|
|
* The holders have several application areas. The end user usually
|
| 52 |
|
|
* sees them implementing CORBA methods where the primitive type
|
| 53 |
|
|
* is passed by reference. While CORBA (or, for example, C) supports
|
| 54 |
|
|
* this, the java does not and a wrapper class is required.
|
| 55 |
|
|
*
|
| 56 |
|
|
* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
|
| 57 |
|
|
*/
|
| 58 |
|
|
public final class DoubleHolder
|
| 59 |
|
|
implements Streamable
|
| 60 |
|
|
{
|
| 61 |
|
|
/**
|
| 62 |
|
|
* The default type code for this holder.
|
| 63 |
|
|
*/
|
| 64 |
|
|
private static final TypeCode t_double =
|
| 65 |
|
|
new PrimitiveTypeCode(TCKind.tk_double);
|
| 66 |
|
|
|
| 67 |
|
|
/**
|
| 68 |
|
|
* The <code>double</code> (CORBA <code>double</code>) value,
|
| 69 |
|
|
* held by this DoubleHolder.
|
| 70 |
|
|
*/
|
| 71 |
|
|
public double value;
|
| 72 |
|
|
|
| 73 |
|
|
/**
|
| 74 |
|
|
* Constructs an instance of DoubleHolder,
|
| 75 |
|
|
* initializing {@link #value} to <code>0.0</code>.
|
| 76 |
|
|
*/
|
| 77 |
|
|
public DoubleHolder()
|
| 78 |
|
|
{
|
| 79 |
|
|
}
|
| 80 |
|
|
|
| 81 |
|
|
/**
|
| 82 |
|
|
* Constructs an instance of DoubleHolder,
|
| 83 |
|
|
* initializing {@link #value} to the given <code>double</code>.
|
| 84 |
|
|
*
|
| 85 |
|
|
* @param initial_value a value that will be assigned to the
|
| 86 |
|
|
* {@link #value} field.
|
| 87 |
|
|
*/
|
| 88 |
|
|
public DoubleHolder(double initial_value)
|
| 89 |
|
|
{
|
| 90 |
|
|
value = initial_value;
|
| 91 |
|
|
}
|
| 92 |
|
|
|
| 93 |
|
|
/**
|
| 94 |
|
|
* Fill in the {@link #value } field by reading the required data
|
| 95 |
|
|
* from the given stream. For <code>double</code>, the functionality
|
| 96 |
|
|
* is delegated to
|
| 97 |
|
|
* {@link org.omg.CORBA.portable.InputStream#read_double}.
|
| 98 |
|
|
*
|
| 99 |
|
|
* @param input the input stream to read from.
|
| 100 |
|
|
*/
|
| 101 |
|
|
public void _read(InputStream input)
|
| 102 |
|
|
{
|
| 103 |
|
|
value = input.read_double();
|
| 104 |
|
|
}
|
| 105 |
|
|
|
| 106 |
|
|
/**
|
| 107 |
|
|
* Returns the TypeCode, corresponding the CORBA type that is stored
|
| 108 |
|
|
* using this holder.
|
| 109 |
|
|
*/
|
| 110 |
|
|
public TypeCode _type()
|
| 111 |
|
|
{
|
| 112 |
|
|
return t_double;
|
| 113 |
|
|
}
|
| 114 |
|
|
|
| 115 |
|
|
/**
|
| 116 |
|
|
* Write the {@link #value } field to the given stream.
|
| 117 |
|
|
* For <code>double</code>, the functionality
|
| 118 |
|
|
* is delegated to
|
| 119 |
|
|
* {@link org.omg.CORBA.portable.OutputStream#write_double(double) }.
|
| 120 |
|
|
*
|
| 121 |
|
|
* @param output the output stream to write into.
|
| 122 |
|
|
*/
|
| 123 |
|
|
public void _write(OutputStream output)
|
| 124 |
|
|
{
|
| 125 |
|
|
output.write_double(value);
|
| 126 |
|
|
}
|
| 127 |
|
|
}
|
