Package org.apache.commons.validator.routines.checkdigit

Class Modulus11DKCheckDigit

java.lang.Object

org.apache.commons.validator.routines.checkdigit.ModulusCheckDigit

org.apache.commons.validator.routines.checkdigit.Modulus11iWeightCheckDigit

org.apache.commons.validator.routines.checkdigit.Modulus11iBSNCheckDigit

org.apache.commons.validator.routines.checkdigit.Modulus11DKCheckDigit

All Implemented Interfaces:

Serializable, CheckDigit

public final class Modulus11DKCheckDigit
extends Modulus11iBSNCheckDigit

Danish Tax identification number (TIN) and VATIN Check Digit calculation/validation.

det Centrale PersonRegister - nummer (CPR-nummer)
Nmomsregistreringsnummer (SE-nr.)

See Wikipedia - CPR-numme (da) and Wikipedia - VAT IN (en) for more details.

Since:

2.10.6

Author:

EUG https://github.com/homebeaver

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
protected int	getCheckdigitLength()
static CheckDigit	getInstance()	Gets the singleton instance of this validator.
protected String	toCheckDigit(int charValue)	Convert an integer value to a check digit.
protected int	weightedValue(int charValue, int leftPos, int rightPos)	Calculates the weighted value of a character in the code at a specified position.

Methods inherited from class org.apache.commons.validator.routines.checkdigit.Modulus11iBSNCheckDigit

calculate

Methods inherited from class org.apache.commons.validator.routines.checkdigit.Modulus11iWeightCheckDigit

isValid

Methods inherited from class org.apache.commons.validator.routines.checkdigit.ModulusCheckDigit

calculateModulus, getModulus, sumDigits, toInt

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static CheckDigit getInstance()

Gets the singleton instance of this validator.

Returns:

A singleton instance of the class.

getCheckdigitLength

protected int getCheckdigitLength()

Override because there is no checkdigit.

Overrides:

getCheckdigitLength in class ModulusCheckDigit

weightedValue

protected int weightedValue(int charValue,
 int leftPos,
 int rightPos)
                     throws CheckDigitException

Calculates the weighted value of a character in the code at a specified position.

TIN, VATID digits are weighted by their position from right to left. There is no check digit at the right most pos where the weight is 1. The next weight is 2, 3, .. to 7, Then we repeat the weight 2, 3, ...

Overrides:

weightedValue in class Modulus11iWeightCheckDigit

Parameters:

charValue - The numeric value of the character.

leftPos - The position of the character in the code, counting from left to right

rightPos - The positionof the character in the code, counting from right to left

Returns:

The weighted value of the character.

Throws:

CheckDigitException - if an error occurs calculating the weighted value

toCheckDigit

protected String toCheckDigit(int charValue)
                       throws CheckDigitException

Convert an integer value to a check digit.

Note: this implementation only handles single-digit numeric values For non-numeric characters, override this method to provide integer-->character conversion.

Override to handle charValue 10.

Override because charValue 0 is the only valid check digit value and there is no checkdigit.

Overrides:

toCheckDigit in class Modulus11iWeightCheckDigit

Parameters:

charValue - The integer value of the character

Returns:

The converted character

Throws:

CheckDigitException - if integer character value doesn't represent a numeric character