org.geworkbench.util
Class BinaryEncodeDecode

java.lang.Object
  org.geworkbench.util.BinaryEncodeDecode

public class BinaryEncodeDecode
extends java.lang.Object

Title: Binary Encoder Decoder

Description: The class has several method for encoding decoding ints into bytes

Copyright: Copyright (c) 2004

Company:

Version:

1.0

Author:

not attributable

Field Summary

static int	MASK
static int	SIZE_OF_INT

Constructor Summary

BinaryEncodeDecode()

Method Summary

static int	decodeUnsignedInt32(byte[] bytes, int offset)
static int[]	decodeUnsignedInt32(byte[] array, int offset, int length) Decode byte array into an int arrray
static void	encodeUnsignedInt32(byte[] array, int index, int value) Encodes a int into a byte array starting at index.
static byte[]	encodeUnsignedInt32(int[] value) Encode an int array into a byte array

Methods inherited from class java.lang.Object

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

Field Detail

SIZE_OF_INT

public static final int SIZE_OF_INT

See Also:

Constant Field Values

MASK

public static final int MASK

See Also:

Constant Field Values

Constructor Detail

BinaryEncodeDecode

public BinaryEncodeDecode()

Method Detail

encodeUnsignedInt32

public static void encodeUnsignedInt32(byte[] array,
                                       int index,
                                       int value)

Encodes a int into a byte array starting at index. Note: assume 4 bytes for a int, so the encoding will start at index and will end at offset index+3.

Parameters:

array - byte[]

index - the index to start encoding #param value the int to encode

encodeUnsignedInt32

public static byte[] encodeUnsignedInt32(int[] value)

Encode an int array into a byte array

Parameters:

value - int[] the values to encode

Returns:

byte[] the result of the encoding

decodeUnsignedInt32

public static int[] decodeUnsignedInt32(byte[] array,
                                        int offset,
                                        int length)

Decode byte array into an int arrray

Parameters:

array - byte[] array to decde

offset - int begining of decoding

length - int number of ints(!) to decode

Returns:

int[]

decodeUnsignedInt32

public static int decodeUnsignedInt32(byte[] bytes,
                                      int offset)