What is Backing Bean?

• Backing beans are JavaBeans components associated with UI components used in a page.
• The backing bean defines properties and handling-logics associated with the UI components used on the page.
• Each backing-bean property is bound to either a component instance or its value.
• A backing bean also defines a set of methods that perform functions for the component, such as validating the component's data, handling events that the component fires and performing processing associated with navigation when the component activates.