What is Action Listener ?

Ans : An action listener is a class that wants to be notified when a command component fires an action event. An action listener contains an action listener method that processes the action event object passed to it by the command component

How JSF Page Lifecycle and ADF Page Lifecycle Phases Relate

The JSF Lifecycle forwards control to the page to be rendered.
The UI components on the page access value bindings and iterator bindings in the page’s binding container and render the formatted output to appear in the browser.
The ADFBindingFilter invokes the end Request() method on each data control participating in the request. This gives every data control a notification at the end of every request where they can perform any necessary resource cleanup.
An application module data control uses the endRequest notification to release the instance of the application module back to the application module pool.
The user sees the resulting page in the browser.