OSCache and MVC

Hi.
 
I am currently evaluating OSCache as a web tier caching solution. We are
planning to use Struts as a framework to build the application on. Being
new to OSCache, I am digging to find out how OSCache can be as powerful
as possible. So my question is, how can Struts be integrated with
OSCache?
 
More clearly, we plan that our bottleneck will be two things: page
construction and ejb calls. Because of how struts work (I guess most
MVC), the ejb calls are done before any jsp execution. Is it possible
that when page construction is cached, that the ejb calls associated
with it would not be executed ?
 
Both are the same question, the second being just a clatrified version.
Hope it is :-)
 
Nicolas Fournier.