Java Reference
In-Depth Information
delegates
Helper
Front
Controller
Client
Dispatcher
View
uses
View
Helper
Figure 3-17.
Service to Worker class diagram
Front Controller
The front controller does the following:
Centralizes request processing
Delegates to the view using the dispatcher
Uses a view helper to separate the business logic concerns with the
presentation logic concerns
Dispatcher
The dispatcher does the following:
Is responsible for view management and navigation
Delegates to the view
Uses a helper to push data into the view
Helper
The helper does the following:
Helps the view or the controller to complete its processing
Pushes data into the view
