<validators>
<validator type="int">
<param name="fieldName">age</param>
<param name="min">20</param>
<param name="max">50</param>
<message>Age needs to be between ${min} and ${max}</message>
</validator>
<field name="age">
<field-validator type="int">
<param name="min">20</param>
<param name="max">50</param>
<message>Age needs to be between ${min} and ${max}</message>
</field-validator>
</field>
</validators>