Why need Managed bean? tccicomputercoaching.com
Managed Bean is a regular Java Bean class registered with JSF. In other words, Managed Beans is a Java bean
managed by JSF framework. Managed bean contains the getter and setter methods, business logic, or even a backing bean (a bean contains all the HTML form value).
-To obtain the form submission data. Using value binding HTTP request data transfered to managed bean properties.
-to handle event like form or hyperlink submission
-to control the page flow
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