Action Or Action Listener which is called first?

Action Listener then Action

Action Listener is called First

Difference between Action Listener vs Action
AL - return type void A- return type String
AL- accepts parameters A-Doesn't
AL- Can't Navigate to another page A- we can navigate to another page


How to pass a parameter to AL?
http://www.gebs.ro/blog/oracle/adf-send-parameter-to-actionlistener/