Let me try to explain:
First, we have a way of gathering 'constraints' for bean properties, that
are based either on validator annotations on the bean, or on a settings
environment (the beanClass & propertyPath are derived from the model of the
formComponent). The endresult is a list of IConstraint's:
List<IConstraint> beanConstraints = EntityUtils.getConstraints(
ModelUtils.findBeanClass(this),
ModelUtils.getPropertyPath(this));
On initialization of the formComponent, we gather these constraints, and if
any are available, we add a ConstraintValidator to the component for each
constraint:
for (IConstraint constraint : beanConstraints) {
validators.add(new ConstraintValidator(this,constraint));
}
So after initalization, the formComponent contains a list of validator based
on constraints defined on the property on which it works.
The rest is done by Wicket, when calling the validators in
formComponent.validate().
Jan.
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