Client side validation in JSF 2.0?

[Namitha karupaiya]

Are there any built-in facilities to do client side validation for JSF 2.0 components?

[Tim Holloway]

In an ideal world, you'd define a validator and the JSF HTML generator would generate both client and server-side validation as long as the client had JavaScript enabled and you didn't otherwise suppress that option. You don't want client-side only because of hacking considerations.

I'm not sure how closely JSF2 approaches that ideal, however.