June 2014
Intermediate to advanced
578 pages
12h 2m
English
The flow scope allows developers to group pages/views and demarcate the group with entry/exit points.
Between the request scope and the session scope, we have the CDI flow scope. This scope exists for a while in Spring Web Flow or ADF flow, and now is available in JSF 2.2 as well. Basically, the flow scope allows us to demarcate a set of related pages/views (usually, logic related) with an entry point (known as start node) and an exit point (known as return node).
The flow scope is a good choice for applications that contain wizards, such as multiscreen subscriptions/registrations, bookings, and shopping carts. Generally speaking, any chunk of an application that has a logical start point and an end point can be encapsulated into ...