concept AJAX framework in category spring

This is an excerpt from Manning's book Spring Dynamic Modules in Action.
AJAX frameworks are web frameworks that provide end-to-end support for implementing AJAX techniques from a JavaScript client on a web page to calling services on server side. These frameworks provide facilities for linking server abstractions to their JavaScript representations and to the application protocol used.
Integrating Spring DM with AJAX frameworks involves exporting OSGi services referenced through Spring DM as remote services with the exporting facilities of these frameworks. These facilities typically only require some Spring configuration.
That covers the general concepts involved in integrating Spring DM and AJAX frameworks. We’ll now detail the implementation of these concepts using DWR and GWT.