Package org.apache.tapestry.valid

Components and classes that provide specialized, validating text fields.

See: Description

Interface Summary

Interface	Description
IFieldTracking	Defines the interface for an object that tracks input fields.
IValidationDelegate	Interface used to track validation errors in forms and form element components (including org.apache.tapestry.form.AbstractTextField and its subclasses).
IValidator	An object that works with an IFormComponent to format output (convert object values to strings values) and to process input (convert strings to object values and validate them).
PatternDelegate	Implementations of this interface will provide pattern utility services.

Class Summary

Class	Description
AbstractNumericValidator	Base class for a number of implementations of IValidator, meant to replace the awkward NumberValidator.
BaseValidator	Abstract base class for IValidator.
DateValidator	Provides input validation for strings treated as dates.
EmailValidator	Simple validation of email strings, to enforce required, and minimum length (maximum length is enforced in the client browser, by setting a maximum input length on the text field).
FieldLabel	Used to label an IFormComponent.
FieldTracking	Default implementation of IFieldTracking.
IntValidator	A type-specific replacement for NumberValidator.
NumberValidator	Simple validation for standard number classes.
NumberValidator.NumberStrategy	This class is not meant for use outside of NumberValidator; it is public only to fascilitate some unit testing.
PatternValidator	The validator bean that provides a pattern validation service.
RenderString	A wrapper around String that allows the String to be renderred.
StringValidator	Simple validation of strings, to enforce required, and minimum length (maximum length is enforced in the client browser, by setting a maximum input length on the text field).
UrlValidator
ValidationConstants	Constants used by the IValidationDelegate or fields.
ValidationConstraint	Defines an enumeration of different types of validation constraints that may be violated.
ValidationDelegate	A base implementation of IValidationDelegatethat can be used as a managed bean.
ValidationStrings	Constants used for accessing validation message patterns.
ValidatorBinding	Implementation of IBinding that provides IValidator instances based on a validator bean descriptor.
ValidatorBindingFactory	Uses the tapestry.valid.ValidatorBeanFactory service to obtain configuration IValidator instances.
ValidField	A Formcomponent that creates a text field that allows for validation of user input and conversion between string and object values.

Exception Summary

Exception	Description
ValidatorException	Thrown by a IValidatorwhen submitted input is not valid.

Package org.apache.tapestry.valid Description

Components and classes that provide specialized, validating text fields. The component ValidField does most of the work, and is paired with an implementation of IValidator (often as a helper bean) which provides the rules of translation (between object value and string) and validation.

Fields can all be set as required or not; most IValidator implementations add additional validations, such as fitting the input value between a minimum and maximum value.

Fields can also have a FieldLabel that reflects the state (normal or error) of the field.

Author:

Howard Lewis Ship hlship@apache.org