kieker.common.util.dataformat

Class VariableLengthEncoding

java.lang.Object

kieker.common.util.dataformat.VariableLengthEncoding

public final class VariableLengthEncoding
extends java.lang.Object

Utility functions for variable-length encoding of integers.

Since:

1.13

Author:

Holger Knoche

Method Summary

Methods

Modifier and Type	Method and Description
static int	decodeInt(java.nio.ByteBuffer buffer) Decodes a variable-length integer value stored at the current position in the byte buffer.
static void	encodeInt(int value, java.nio.ByteBuffer buffer) Encodes a given int value using a variable-length encoding.

Methods inherited from class java.lang.Object

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

Method Detail

encodeInt

public static void encodeInt(int value,
             java.nio.ByteBuffer buffer)

Encodes a given int value using a variable-length encoding. Each encoded byte starts with an indicator bit, followed by 7 data bits. The data bits are stored in lsb-first fashion to facilitate the encoding, which is more time-critical.

Parameters:

value - The value to encode

buffer - The buffer to write the data to

decodeInt

public static int decodeInt(java.nio.ByteBuffer buffer)

Decodes a variable-length integer value stored at the current position in the byte buffer.

Parameters:

buffer - The buffer to decode the data from

Returns:

The decoded integer value