Package wicket.markup.html.form.validation
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Interfaces
IFormValidator Interface that represents validators that check multiple components.
IValidator Interface for validations by form components.
Classes
AbstractFormValidator Base class for IFormValidator s.
AbstractValidator Base class for form component validators.
CustomValidator A validator for strings designed for subclassing.
DateValidator A validator for dates that can be used for subclassing or use one of the static factory methods to get the default date validators as range, maximum or minimum.
EmailAddressPatternValidator Validator for checking the form/pattern of email addresses.
EqualInputValidator Validates that the input of two form components is identical.
EqualPasswordInputValidator Validates that the input of two form components is identical.
FormComponentFeedbackBorder A border that can be placed around a form component to indicate when the bordered child/children has a validation error.
FormComponentFeedbackIndicator A panel that hides or shows itself depending on whether there are feedback messages for a given message filter.
IntegerValidator Ensures that the form component has a numeric value in a given range.
LengthValidator Validates that a form component's string value is of a certain min/max length.
NumberValidator A validator for numbers.
PatternValidator Validates component by matching the component's value against a regular expression pattern.
RequiredValidator This validator has been deprecated in favor of setRequired(boolean) Validator that ensures a component has a non-null and non-empty value.
StringValidator A validator for strings that can be used for subclassing or use one of the static factory methods to get the default string validators as range, maximum or minimum.
TypeValidator This validator has been depreacted in favor of setType(Class) Validates input by trying it to convert to the given type using the IConverter instance of the component doing the validation.

Support for form validation. Form components can have validations assigned, which are triggered before the models of the form components are updated. If validation fails, the denied input is re-displayed by the components, and the error messages are collected and available in FeedbackMessages.