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

Class VATidBECheckDigit

java.lang.Object

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

org.apache.commons.validator.routines.checkdigit.IsoIec7064PureSystem

org.apache.commons.validator.routines.checkdigit.IsoIecPure97System

org.apache.commons.validator.routines.checkdigit.VATidBECheckDigit

All Implemented Interfaces:

Serializable, CheckDigit, IsoIecConstants

public final class VATidBECheckDigit
extends IsoIecPure97System

Belgian VAT identification number (VATIN) Check Digit calculation/validation.

Numéro T.V.A. BTW-nummer (Nº TVA BTW-nr.) old schema 1234567pp. Note the check digit has two characters and that the old numbering schema only had 9 characters, just adding a zero in front makes it a valid number in the new schema 01234567pp.

The check digits are calculated as 97 - MOD 97

See Wikipedia - VAT IN for more details.

Since:

1.10.0

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.apache.commons.validator.routines.checkdigit.IsoIecConstants

ALPHABETIC, ALPHANUMERIC, ALPHANUMERIC_PLUS_STAR, MODULUS_1271, MODULUS_37, MODULUS_661, MODULUS_97, NUMERIC, NUMERIC_PLUS_X, RADIX_10, RADIX_2, RADIX_26, RADIX_36

Constructor Summary

Constructors

Constructor	Description
VATidBECheckDigit()

Method Summary

Modifier and Type	Method	Description
String	calculate(String code)	Calculate a modulus Check Digit for a code which does not yet have one.
static CheckDigit	getInstance()	Gets the singleton instance of this validator.
boolean	isValid(String code)	Validate a modulus check digit for a code.

Methods inherited from class org.apache.commons.validator.routines.checkdigit.IsoIecPure97System

getCharacterSet, getRadix

Methods inherited from class org.apache.commons.validator.routines.checkdigit.IsoIec7064PureSystem

calculateModulus, getCheckdigitLength, toCheckDigit, toInt, weightedValue

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

getModulus, sumDigits

Methods inherited from class java.lang.Object

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

Constructor Details

VATidBECheckDigit

public VATidBECheckDigit()

Method Details

getInstance

public static CheckDigit getInstance()

Gets the singleton instance of this validator.

Returns:

A singleton instance of the class.

calculate

public String calculate(String code)
                 throws CheckDigitException

Calculate a modulus Check Digit for a code which does not yet have one.

Overrides with simplified procedure described in ISO/IEC 7064:2003(E).

Overridden because the check digits are calculated as 97 - modulusResult

Specified by:

calculate in interface CheckDigit

Overrides:

calculate in class IsoIecPure97System

Parameters:

code - The code for which to calculate the Check Digit; the check digit should not be included

Returns:

The calculated Check Digit

Throws:

CheckDigitException - if an error occurs calculating the check digit

isValid

public boolean isValid(String code)

Validate a modulus check digit for a code.

Specified by:

isValid in interface CheckDigit

Overrides:

isValid in class IsoIec7064PureSystem

Parameters:

code - The code to validate

Returns:

true if the check digit is valid, otherwise false