old-autovect-branch/libjava/classpath/gnu/CORBA/CDR/AbstractDataOutput.java

   1 /* AbstractDataOutput.java --
   2    Copyright (C) 2005 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 gnu.CORBA.CDR;
  40
  41 import java.io.IOException;
  42
  43 /**
  44  * An abstract data output stream that could write data in either
  45  * Big Endian or Little Endian format.
  46  *
  47  * This class reuses code from GNU Classpath DataOutputStream.
  48  *
  49  * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  50  * @author Warren Levy (warrenl@cygnus.com)
  51  * @author Aaron M. Renn (arenn@urbanophile.com)
  52  */
  53 public interface AbstractDataOutput
  54 {
  55   /**
  56    * This method flushes any unwritten bytes to the underlying stream.
  57    *
  58    * @exception IOException If an error occurs.
  59    */
  60   void flush()
  61       throws IOException;
  62
  63   /**
  64    * This method writes the specified byte (passed as an <code>int</code>)
  65    * to the underlying output stream.
  66    *
  67    * @param value The <code>byte</code> to write, passed as an <code>int</code>.
  68    *
  69    * @exception IOException If an error occurs.
  70    */
  71   void write(int value)
  72       throws IOException;
  73
  74   /**
  75    * This method writes <code>len</code> bytes from the specified byte array
  76    * <code>buf</code> starting at position <code>offset</code> into the
  77    * buffer to the underlying output stream.
  78    *
  79    * @param buf The byte array to write from.
  80    * @param offset The index into the byte array to start writing from.
  81    * @param len The number of bytes to write.
  82    *
  83    * @exception IOException If an error occurs.
  84    */
  85   void write(byte[] buf, int offset, int len)
  86       throws IOException;
  87
  88   /**
  89    * Write the complete byte array.
  90    * @throws IOException
  91    */
  92   void write(byte[] buf)
  93       throws IOException;
  94
  95   /**
  96    * This method writes a Java boolean value to an output stream.  If
  97    * <code>value</code> is <code>true</code>, a byte with the value of
  98    * 1 will be written, otherwise a byte with the value of 0 will be
  99    * written.
 100    *
 101    * The value written can be read using the <code>readBoolean</code>
 102    * method in <code>DataInput</code>.
 103    *
 104    * @param value The <code>boolean</code> value to write to the stream
 105    *
 106    * @exception IOException If an error occurs
 107    */
 108   void writeBoolean(boolean value)
 109              throws IOException;
 110
 111   /**
 112    * This method writes a Java byte value to an output stream.  The
 113    * byte to be written will be in the lowest 8 bits of the
 114    * <code>int</code> value passed.
 115    *
 116    * The value written can be read using the <code>readByte</code> or
 117    * <code>readUnsignedByte</code> methods in <code>DataInput</code>.
 118    *
 119    * @param value The <code>byte</code> to write to the stream, passed as
 120    * the low eight bits of an <code>int</code>.
 121    *
 122    * @exception IOException If an error occurs
 123    */
 124   void writeByte(int value)
 125           throws IOException;
 126
 127   /**
 128    * This method writes a Java short value to an output stream.  The
 129    * char to be written will be in the lowest 16 bits of the <code>int</code>
 130    * value passed.
 131    *
 132    * @exception IOException If an error occurs
 133    */
 134   void writeShort(int value)
 135            throws IOException;
 136
 137   /**
 138    * This method writes a Java char value to an output stream.  The
 139    * char to be written will be in the lowest 16 bits of the <code>int</code>
 140    * value passed.
 141    *
 142    * @exception IOException If an error occurs
 143    */
 144   void writeChar(int value)
 145           throws IOException;
 146
 147   /**
 148    * This method writes a Java int value to an output stream.
 149    *
 150    * @param value The <code>int</code> value to write to the stream
 151    *
 152    * @exception IOException If an error occurs
 153    */
 154   void writeInt(int value)
 155          throws IOException;
 156
 157   /**
 158    * This method writes a Java long value to an output stream.
 159    *
 160    * @param value The <code>long</code> value to write to the stream
 161    *
 162    * @exception IOException If an error occurs
 163    */
 164   void writeLong(long value)
 165           throws IOException;
 166
 167   /**
 168    * This method writes a Java <code>float</code> value to the stream.
 169    * @param value The <code>float</code> value to write to the stream
 170    *
 171    * @exception IOException If an error occurs
 172    */
 173   void writeFloat(float value)
 174            throws IOException;
 175
 176   /**
 177    * This method writes a Java <code>double</code> value to the stream.
 178    *
 179    * @param value The <code>double</code> value to write to the stream
 180    *
 181    * @exception IOException If an error occurs
 182    */
 183   void writeDouble(double value)
 184             throws IOException;
 185 }