net.messagevortex.router.operation

Class GaloisFieldMathMode

java.lang.Object

net.messagevortex.router.operation.GaloisFieldMathMode

All Implemented Interfaces:

MathMode

public class GaloisFieldMathMode
extends Object
implements MathMode

Offers galoise Math required for redundancy matrices.

Constructor Summary

Constructors

Constructor and Description
GaloisFieldMathMode(int omega)

Method Summary

Modifier and Type	Method and Description
int	add(int c1, int c2) Add c1 with c2.
int	div(int c1, int divisor) Divides c1 by c2 (without remainder).
static GaloisFieldMathMode	getGaloisFieldMathMode(int omega) Gets a singleton math mode for the specified omega.
int[]	getGfIlog()
int[]	getGfLog()
String	getTableDump() dumps transformation table of GF-Field.
int	mul(int c1, int c2) Multiplys c1 ith c2.
int	sub(int c1, int c2) Subtract c2 from c1.
String	toString() get the identitfication representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

GaloisFieldMathMode

public GaloisFieldMathMode(int omega)

Method Detail

getGaloisFieldMathMode

public static GaloisFieldMathMode getGaloisFieldMathMode(int omega)

Gets a singleton math mode for the specified omega.

Parameters:

omega - the number of bits to be used

Returns:

the math mode (singleton)

mul

public int mul(int c1,
               int c2)

Description copied from interface: MathMode

Multiplys c1 ith c2.

Specified by:

mul in interface MathMode

Parameters:

c1 - the first operand

c2 - the second operand

Returns:

the result of the multiplication

div

public int div(int c1,
               int divisor)

Description copied from interface: MathMode

Divides c1 by c2 (without remainder).

Specified by:

div in interface MathMode

Parameters:

c1 - the dividend

divisor - the divisor

Returns:

the result of the division

add

public int add(int c1,
               int c2)

Description copied from interface: MathMode

Add c1 with c2.

Specified by:

add in interface MathMode

Parameters:

c1 - the first operand

c2 - the second operand

Returns:

the result of the addition

sub

public int sub(int c1,
               int c2)

Description copied from interface: MathMode

Subtract c2 from c1.

Specified by:

sub in interface MathMode

Parameters:

c1 - the base value

c2 - the the value to subtract from the base value

Returns:

the result of the subtraction

getGfLog

public int[] getGfLog()

getGfIlog

public int[] getGfIlog()

toString

public String toString()

Description copied from interface: MathMode

get the identitfication representation.

Specified by:

toString in interface MathMode

Overrides:

toString in class Object

Returns:

th identification string

getTableDump

public String getTableDump()

dumps transformation table of GF-Field.

Returns:

returns a string representing the current table