Using pipelined table function as the UI API object

In my previous post I've introduced you to an example WoD application page, and showed how the render-flow could be built in an Helsinki manner using a ref-cursor. The UI technology stack would call a stored procedure which in turn would return a ref-cursor. Inside the UI code stack all that needs to be done is fetch the rows from the ref-cursor (until %NOTFOUND), then close the cursor, and