Package org.hibernate.validator.internal.constraintvalidators.hv

Class ISBNValidator

java.lang.Object

org.hibernate.validator.internal.constraintvalidators.hv.ISBNValidator

All Implemented Interfaces:

ConstraintValidator<ISBN,CharSequence>

public class ISBNValidator
extends Object
implements ConstraintValidator<ISBN,CharSequence>

Checks that a given character sequence (e.g. string) is a valid ISBN.

Author:

Marko Bekhta

Constructor Summary

Constructors

Constructor	Description
ISBNValidator()

Method Summary

Modifier and Type	Method	Description
void	initialize(ISBN constraintAnnotation)	Initializes the validator in preparation for ConstraintValidator.isValid(Object, ConstraintValidatorContext) calls.
boolean	isValid(CharSequence isbn, ConstraintValidatorContext context)	Implements the validation logic.

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)

Description copied from interface: ConstraintValidator

Initializes the validator in preparation for ConstraintValidator.isValid(Object, ConstraintValidatorContext) calls. The constraint annotation for a given constraint declaration is passed.

This method is guaranteed to be called before any use of this instance for validation.

The default implementation is a no-op.

Specified by:

initialize in interface ConstraintValidator<ISBN,CharSequence>

Parameters:

constraintAnnotation - annotation instance for a given constraint declaration

isValid

public boolean isValid(CharSequence isbn,
                       ConstraintValidatorContext context)

Description copied from interface: ConstraintValidator

Implements the validation logic. The state of value must not be altered.

This method can be accessed concurrently, thread-safety must be ensured by the implementation.

Specified by:

isValid in interface ConstraintValidator<ISBN,CharSequence>

Parameters:

isbn - object to validate

context - context in which the constraint is evaluated

Returns:

false if value does not pass the constraint