org.apache.cocoon.woody.validation
Interface WidgetValidator

All Known Implementing Classes:

JavaScriptValidator, ValidationRuleValidator

public interface WidgetValidator

Validates a widget. Validation can mean lots of different things depending on the actual widget and validator type, e.g. :

on fields, a validator will validate the field's value,

on repeaters, a validator can perform inter-row validation

A validator returns a boolean result indicating if validation was successful or not. If not successful, the validator must set a ValidationError on the validated widget or one of its children.

Note: It is important (although it cannot be explicitely forbidden) that a validator does not consider widgets that are not the validated widgets itself or its children, as this may lead to inconsistencies in the form model because of the way form validation occurs (depth-first traversal of the widget tree).

Version:

CVS $Id: WidgetValidator.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Sylvain Wallez

Method Summary

boolean

validate(Widget widget, FormContext context) Validate a widget.

Method Detail

validate

boolean validate(Widget widget,
                 FormContext context)

Validate a widget.

Parameters:

widget - the widget to validate

context - the form context

Returns:

true if validation was successful. If not, the validator must have set a ValidationError on the widget or one of its children.