Yup, JSF validation is really lacking.
I don't think you have a chance to get that desired behavior with
JSF validation.
The most pragmatic solution is probably to "manually" do the validation
in your action handler, instead of using JSF's validation concept.
(Yes, I just hate that, even more so because I use Seam to enable
entity beans as backing beans for my forms. However now I can't do
that any longer and have to use artificial value objects instead -
no validation => invalid values get written to the entities, because
those entities are still managed, they would be written to the DB
on next flush. What a mess.)
jhomuth wrote:
Hi List,
I've tried a lot to validate my selectManyListBox. This validation would
be very simple, because I only want to validate if the user selected
something in that listbox. But as I know now, that a custom validator
will not called if the field, which you want to validate is empty. WTF.
Someone would say, why not use the "required" Attribute of that
UIComponent. But that's f******g bad, because there only will a standard
message displayed and that not what I want to do. Ok I can customize the
Message but only to a standard required message which could not be
customized for different fields. Is there any workaround, that my custom
validator will be called if the damm required attribute is not set and
the field to validate has no input.
Please help me before I get real crazy.
Thx for suggestions
