Wherefore art thou, o NSTableView?

FROM : William Squires
DATE : Sun Jun 22 16:43:25 2008

Okay, this one has me stumped. What delegate do I need to 
implement to handle user editing a cell in an NSTableView (i.e. after 
they edit it, and hit the <Enter> key to accept.) None of the 
delegate methods described in the docs seem to fit the bill, but 
maybe I'm just overlooking it? I've already implemented 
tableView:shouldEditTableColum:row to return YES.
  Or is this a case for connecting actions in IB?