Select and Radio components share the way of specifying the list of options:
<!--
Enumeration values are guessed automatically
-->
<l:inputSelect name="mortgage.status" />
<!--
Additional options may be added by hand
-->
<l:inputSelect name="country">
<option value="es" />
<option value="en" />
<option value="other" label="Other countries" translateLabel="false"/>
</l:inputSelect>
<!--
action.getCountries() returns a Collection of Option or
any class with attributes "id" and "name"
-->
<l:inputSelect name="country" options="${action.countries}"/>
<!--
action.getProvinces() returns a Collection of any class with
attributes "key" and "firstName"
-->
<l:inputSelect name="province" options="${action.provinces}"
keyProperty="key" labelProperty"firstName"
translateLabels="false" />