There is now a JiBX data connector for Apache CXF.

This means that JiBX works with the JAX-RS standard for RESTful services as
well as SOAP.

Here are a couple of examples:
A simple JAX-RS example from the servicemix jaxrs sample:
http://jibx.sourceforge.net/maven-jibx-plugin/rest.html

A JAX-RS example using bindings from the JiBX schema library:
http://jibx.sourceforge.net/schema-library/webservices.html

A step-by-step tutorial on writing a web service that can be used by a SOAP
and REST server:
http://blog.tourgeek.com/2012/04/creating-soap-and-rest-services-for.html

Thanks goes to Apache cxf contributors, especially Dan Kulp, for writing
the databinding for JiBX.