Class DefaultLUHNCalculator

java.lang.Object

org.jpos.core.DefaultLUHNCalculator

All Implemented Interfaces:

LUHNCalculator

public class DefaultLUHNCalculator
extends Object
implements LUHNCalculator

Default LUHNCalculator that computes/validates the LUHN check digit.

Constructor Summary

Constructors

Constructor	Description
DefaultLUHNCalculator()	Default constructor; no instance state to initialise.

Method Summary

Modifier and Type	Method	Description
char	calculate(String p)	Compute card's check digit (LUHN)
boolean	verify(String p)	Verify Card's PAN

Methods inherited from class Object

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

Constructor Details

DefaultLUHNCalculator

public DefaultLUHNCalculator()

Default constructor; no instance state to initialise.

Method Details

calculate

public char calculate(String p)
               throws InvalidCardException

Compute card's check digit (LUHN)

Specified by:

calculate in interface LUHNCalculator

Parameters:

p - PAN (without checkdigit)

Returns:

the checkdigit

Throws:

InvalidCardException - if the PAN contains non-digit characters

verify

public boolean verify(String p)
               throws InvalidCardException

Verify Card's PAN

Specified by:

verify in interface LUHNCalculator

Parameters:

p - full card PAN

Returns:

true if pan LUHN's matches

Throws:

InvalidCardException - if the PAN is null or too short