I have a TextField which overrides it's getConverter method to add a
Joda time converter instead:
new TextField<P>(id) {
@Override
public <P> IConverter<P> getConverter(Class<P> type) {
return (IConverter<P>) new JodaDateTimeConverter();
}
};
The converter returns null if input was invalid. However, I want to be
able to flag this field as required, and I don't know how to do that:
- textField.isRequired(true) does not work, because required checks
are done before conversion. This doesn't work for non-empty but
invalid inputs.
- textField.add(.. some validator ..) does not work because no
validator is called if the converter returned null.
I really don't see an approach to flag my date fields as required. Do
you know how to do that? Probably my approach is not suited at all?
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