org.hibernate.validator.internal.constraintvalidators.hv

Class NotBlankValidator

java.lang.Object

org.hibernate.validator.internal.constraintvalidators.hv.NotBlankValidator

All Implemented Interfaces:

ConstraintValidator<NotBlank,CharSequence>

public class NotBlankValidator
extends Object
implements ConstraintValidator<NotBlank,CharSequence>

Check that a character sequence's (e.g. string) trimmed length is not empty.

Author:

Hardy Ferentschik

Constructor Summary

Constructors

Constructor and Description
NotBlankValidator()

Method Summary

Modifier and Type	Method and Description
void	initialize(NotBlank annotation) Initializes the validator in preparation for ConstraintValidator.isValid(Object, ConstraintValidatorContext) calls.
boolean	isValid(CharSequence charSequence, ConstraintValidatorContext constraintValidatorContext) Checks that the trimmed string is not empty.

Methods inherited from class java.lang.Object

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

Constructor Detail

NotBlankValidator

public NotBlankValidator()

Method Detail

initialize

public void initialize(NotBlank annotation)

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.

Specified by:

initialize in interface ConstraintValidator<NotBlank,CharSequence>

Parameters:

annotation - annotation instance for a given constraint declaration

isValid

public boolean isValid(CharSequence charSequence,
                       ConstraintValidatorContext constraintValidatorContext)

Checks that the trimmed string is not empty.

Specified by:

isValid in interface ConstraintValidator<NotBlank,CharSequence>

Parameters:

charSequence - The character sequence to validate.

constraintValidatorContext - context in which the constraint is evaluated.

Returns:

Returns true if the string is null or the length of charSequence between the specified min and max values (inclusive), false otherwise.