I need to set a commom foundation to expose services and intercept its call for security purposes. As a obviout first approach I used a bean, its interfaces and interceptors anotation. But to manage all scalable aspects involved I was thinking that I need to write somekind of service broker framework. My doubt is if its necessary once im using j2ee thats soposed to manage it at some level and what kind of implementation it support and what kind off pattern is best suited to it.