JSF 2 - Bean Validation: validation failed -> empty values are replaced with last valid values from managed bean

Question

I do not understand the behaviour of JSF2 during valdation. Hope someone can help me.

I have a form where the fields are validated after (ajax) submit - ok

Answer 1

Aaron already descripes the behaviour.

The problem I've been described exists also by clicking the 'newContact' button. If the first submit is not valid (birthday was entered, name-field is empty) an error message is shown. ok.

Afterwards the 'newContact' Button do not refresh (clear) the view. Although the model was resetted (contact = new Contact()).

I found some tipps here: http://wiki.apache.org/myfaces/ClearInputComponents

Here is my solution:

public void newContact(ActionEvent ae) {
    contact = new Contact();
    contact.setBirthday(new Date()); //for testing only

    resetForm(ae.getComponent());
}

private void resetForm(UIComponent uiComponent) {
    //get form component
    UIComponent parentComponent = uiComponent.getParent();
    if (uiComponent instanceof UIForm)
        resetFields(uiComponent);
    else if (parentComponent != null)
        resetForm(parentComponent);
    else
        resetFields(uiComponent);

}

private void resetFields(UIComponent baseComponent) {
    for (UIComponent c : baseComponent.getChildren()) {
        if (c.getChildCount() > 0)
            resetFields(c);

        if (c instanceof UIInput)
            ((UIInput) c).resetValue();
    }
}