org.apache.wicket.validation
Interface INullAcceptingValidator<T>
- Type Parameters:
T - type of validatable
- All Superinterfaces:
- IClusterable, IValidator<T>, Serializable
- All Known Implementing Classes:
- AbstractValidator, CreditCardValidator, DateValidator, EmailAddressValidator, PatternValidator, RfcCompliantEmailAddressValidator, StringValidator, StringValidator.ExactLengthValidator, StringValidator.LengthBetweenValidator, StringValidator.MaximumLengthValidator, StringValidator.MinimumLengthValidator, UrlValidator
public interface INullAcceptingValidator<T>
- extends IValidator<T>
Marker interface for validators that will accept a null value. Without implementing
this interface Wicket will never pass null values to
IValidator.validate(IValidatable).
Keep in mind that the FormComponent must have set the required property to
false, otherwise Wicket will not permit the validator to process the
null value.
- Since:
- 1.2.6
- Author:
- Matej Knopp
- See Also:
IValidator,
FormComponent.setRequired(boolean)
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