Extending CSV with JSF
The Client Side Validation API makes it possible to write our own validators and converters. The writing process is straightforward.
In this recipe, we will develop a custom JSF validator that validates any Unicode strings. The validator will check whether an input value consists of letters, spaces, hyphens, and apostrophes. Any other characters are not allowed. This is a common requirement for validating names of persons, addresses, and similar inputs. We will use the CSV API to implement both server-side and client-side validators. After that, we will see validation in action.
How to do it…
A custom JSF validator must implement two interfaces: javax.faces.validator.Validator and org.primefaces.validate.ClientValidator. The ...
Get PrimeFaces Cookbook - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
