posted 17 years ago
Javan,
Variables set for the "application" scope of Session will only be seen by portlets within the same "portal application" (aka WAR file).
Also, the Render Request is what is passed on a Render URL. A Render URL is a direct link to another view/page. The Rendering may involve reading data from a database.
The Action Request is from an Action URL. Action URL are associated with a submission from a form. So, if you click a button, you are likely initiating an action. Typical stuff done inside the processAction method would be validation and persistence.
Cheers,
Mike