org.exist.util
Class ByteConversion

java.lang.Object
  org.exist.util.ByteConversion

public class ByteConversion
extends Object

A collection of static methods to write integer values from/to a byte array.

Author:

Wolfgang Meier

Constructor Summary

ByteConversion()

Method Summary

static int	byteToInt(byte[] data, int start) Read an integer value from the specified byte array, starting at start.
static long	byteToLong(byte[] data, int start) Read a long value from the specified byte array, starting at start.
static short	byteToShort(byte[] data, int start) Read a short value from the specified byte array, starting at start.
static byte[]	intToByte(int v, byte[] data, int start) Write an int value to the specified byte array.
static byte[]	longToByte(long v) Write an int value to a newly allocated byte array.
static byte[]	longToByte(long v, byte[] data, int start) Write a long value to the specified byte array.
static byte[]	shortToByte(short v) Write a short value to a newly allocated byte array.
static byte[]	shortToByte(short v, byte[] data, int start) Write a short value to the specified byte array.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ByteConversion

public ByteConversion()

Method Detail

byteToInt

public static final int byteToInt(byte[] data,
                                  int start)

Read an integer value from the specified byte array, starting at start.

byteToLong

public static final long byteToLong(byte[] data,
                                    int start)

Read a long value from the specified byte array, starting at start.

byteToShort

public static final short byteToShort(byte[] data,
                                      int start)

Read a short value from the specified byte array, starting at start.

intToByte

public static final byte[] intToByte(int v,
                                     byte[] data,
                                     int start)

Write an int value to the specified byte array. The first byte is written into the location specified by start.

Parameters:

v - the value

data - the byte array to write into

start - the offset

Returns:

the byte array

longToByte

public static final byte[] longToByte(long v,
                                      byte[] data,
                                      int start)

Write a long value to the specified byte array. The first byte is written into the location specified by start.

Parameters:

v - the value

data - the byte array to write into

start - the offset

Returns:

the byte array

longToByte

public static final byte[] longToByte(long v)

Write an int value to a newly allocated byte array.

Parameters:

v - the value

Returns:

the byte array

shortToByte

public static final byte[] shortToByte(short v,
                                       byte[] data,
                                       int start)

Write a short value to the specified byte array. The first byte is written into the location specified by start.

Parameters:

v - the value

data - the byte array to write into

start - the offset

Returns:

the byte array

shortToByte

public static final byte[] shortToByte(short v)

Write a short value to a newly allocated byte array.

Parameters:

v - the value

Returns:

the byte array