Package net.sf.mmm.util.validation.api

Provides the API for simple validation of values.

See: Description

Interface Summary

Interface	Description
AbstractValidatableObject	This is the abstract interface for an object, that can be validated.
HasValueValidators<V>	This is the interface for an object that allows to add and remove validators.
ValidatableObject<V>	This is the interface for an object, that has a value as well as validators and can be validated.
ValidationCollector	This is the interface for a listener that gets notified if a ValidationFailure occurred.
ValidationFailure	This is the interface for a failure of a validation.
ValidationState	This is the interface for the state of a validation.
ValueValidator<V>	A ValueValidator allows to validate according values.

Exception Summary

Exception	Description
ValidationErrorUserException	This exception is thrown if a validation failed unexpectedly.

Package net.sf.mmm.util.validation.api Description

Provides the API for simple validation of values.

Validator API

Validation is a fundamental feature of an application. This package provides a simple but powerful API for validation. While Java defines a very sophisticated API provided by javax.validation it is overloaded for simpler use-cases or a limited web-application based on GWT. However, this API here can still act as a thin facade to such validation framework.

Validation and GWT (Google Web Toolkit)

Techniques like GWT require specific limitations for your Java code in oder to be executable as JavaScript on the client. These limitations shall not limit your validation on the server-side but still allow to reuse logic on the client. I am aware that gwt-validation brings javax.validation to the client. However, the price of this complexity is reduced turn-around times during development and therefore limit the progress of your project.