Summary
Tag name: <f:validateLength>
Validator class: javax.faces.validator.LengthValidator
Tag class: org.apache.myfaces.taglib.core.ValidateLengthTag
validator id: javax.faces.Length
Creates a validator and associateds it with the nearest parent
UIComponent. When invoked, the validator ensures that values are
valid strings with a length that lies within the minimum and maximum
values specified.
Commonly associated with a h:inputText entity.
Unless otherwise specified, all attributes accept static values or EL expressions.
see Javadoc of JSF Specification