ex6_31.txt

j2ee core design patterns

Example 6.31 		Context Object Factory
public class FrontController extends HttpServlet {

  protected void processRequest(HttpServletRequest request,
      HttpServletResponse response)
      throws ServletException, java.io.IOException {           
    . . .
    // Identify incoming Request Type 
    String requestType = getRequestType(request);

    // Instantialte Specialized RequestContext based on incoming 
    // request type
    RequestContextFactory requestContextFactory = 
        RequestContextFactory.getInstance();

    RequestContext requestContext =
        requestContextFactory.getRequestContext(requestType,  request);
    . . . 
  }
}