Backing Bean Management
Another critical function of Web applications is proper management of resources. This includes separating the definition of UI component objects from objects that perform application-specific processing and hold data. It also includes storing and managing these object instances in the proper scope.
A typical JavaServer Faces application includes one or more backing beans, which are JavaBeans components (see JavaBeans Components, page 497) associated with UI components used in a page. A backing bean defines UI component properties, each of which is bound to either a component's value or a component instance. A backing bean can also define methods that perform functions associated with a component, including validation, ...
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