public interface IRequestAction
With this action you can access directly to the web application resources (by means request), but it ties to implementation technology (servlets), hence it's better to elude it if you have another option and you're thinking in migrate to another tecnology.
But it's needed form some issues. As this action type is
used for specific task, it's possible refactoring and create
more specific (in functional terms) and abstracts (in tecnologic terms)
actions that it's not link to servlets tecnology.