As a requirement I must be able to change the UI on a per request basis... a specific case would be including or omitting a left navigation bar. The parameters will always be passed with GET.
Currently I am using Tiles and JSP's for composition. What I think would work is if I create a UI class and have an interceptor match all parameters of the pattern "UI.*" and use this class as a partial model, which will be added to the request scope along with the action's model. Then when the JSP's render they will consult the members of UI class as they would the members of the Action... and do what they're supposed to do, render the side bar, don't render the side bar... For questions of you: Is this a reasonable way to approach this? Is there already a way to do this with struts 2 or am I best writing my own interceptor?
