Action Filters are similar to action interceptors: they run before action method and after the result is rendered! That is a main difference: interceptors are executed before rendering result.

Action Filters looks very much like Servlet filters. However, it is much easier to configure an action filter and to map it to certain actions.

Everything said for action interceptors can be applied to action filters! Filters are defined with @FilteredBy annotation, that can be used in the very same way as interceptors. For example:

    public class FilterAction {

        public void view() {

This action class defines one filter and one interceptor (on all its action methods). Note that filters are always executed first, before interceptors.