com.foreach.common.spring.validators

Class ISBNValidator

java.lang.Object

com.foreach.common.spring.validators.ISBNValidator

All Implemented Interfaces:

javax.validation.ConstraintValidator<ISBN,String>

public class ISBNValidator
extends Object
implements javax.validation.ConstraintValidator<ISBN,String>

IsbnValidator validates a string containing an ISBN number.

ISBN consists of 4 groups of numbers separated by either dashes (-) or spaces. The first group is 1-5 characters, second 1-7, third 1-6, and fourth is 1 digit or an X. The number should pass a mathematical calculation before being valid. null strings are returned as valid.

Constructor Summary

Constructors

Constructor and Description
ISBNValidator()

Method Summary

Modifier and Type	Method and Description
void	initialize(ISBN constraintAnnotation)
boolean	isValid(String value, javax.validation.ConstraintValidatorContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ISBNValidator

public ISBNValidator()

Method Detail

initialize

public void initialize(ISBN constraintAnnotation)

Specified by:

initialize in interface javax.validation.ConstraintValidator<ISBN,String>

isValid

public boolean isValid(String value,
                       javax.validation.ConstraintValidatorContext context)

Specified by:

isValid in interface javax.validation.ConstraintValidator<ISBN,String>

Parameters:

value - the isbn string to be validated

context - ignored.

Returns:

true if the passed isbn is a valid ISBN number