The SetActionListener tag is a declarative way to allow an
action source (<commandButton>, <commandLink>,
etc.) to set a value before navigation. It is perhaps most
useful in conjunction with the "pageFlowScope" EL scope
provided by ADF Faces, as it makes it possible to pass details
from one page to another without writing any Java code. This
tag can be used both with ADF Faces commands and JSF standard
tags. More generally, it can be used with any component at
all that implements the standard ActionSource interface.
Example:
This example shows a table with a "Show..." button. When
the button is pressed, the following will happen:
The value of "#{row}" will be retrieved - which corresponds to the
current row in the table.
That object will get stored as the "detail" property in process
scope.
The user will navigate to the "showDetail" outcome of this page (because of the "action" property on the <h:commandButton>).
The target page can then retrieve the detail object from the process scope and use it as needed.