org.jboss.ejb.client.remoting
Class PackedInteger

java.lang.Object
  org.jboss.ejb.client.remoting.PackedInteger

public class PackedInteger
extends Object

A PackedInteger is a variable-length integer. The most-significant bit of each byte of a PackedInteger value indicates whether that byte is the final (lowest-order) byte of the value. If the bit is 0, then this is the last byte; if the bit is 1, then there is at least one more subsequent byte pending, and the current value should be shifted to the left by 7 bits to accommodate the next byte's data.

Note: PackedInteger cannot hold signed integer values.

Author:

Carlo de Wolf

Constructor Summary

PackedInteger()

Method Summary

static int	readPackedInteger(DataInput input) Reads a PackedInteger value from the passed input and returns the value of the integer.
static byte[]	toPackedInteger(int value)
static void	writePackedInteger(DataOutput output, int value) Converts the passed value into a PackedInteger and writes it to the output

Methods inherited from class java.lang.Object

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

Constructor Detail

PackedInteger

public PackedInteger()

Method Detail

readPackedInteger

public static int readPackedInteger(DataInput input)
                             throws IOException

Reads a PackedInteger value from the passed input and returns the value of the integer.

Parameters:

input - The DataInput from which the PackedInteger value will be read

Returns:

Throws:

IOException

IllegalArgumentException - If the passed input is null

writePackedInteger

public static void writePackedInteger(DataOutput output,
                                      int value)
                               throws IOException

Converts the passed value into a PackedInteger and writes it to the output

Parameters:

output - The DataOutput to which the PackedInteger is written to

value - The integer value which will be converted to a PackedInteger

Throws:

IOException

IllegalArgumentException - If the passed value is < 0. PackedInteger doesn't allow signed integer

IllegalArgumentException - If the passed output is null

toPackedInteger

public static byte[] toPackedInteger(int value)
                              throws IOException

Throws:

IOException