My struts application follows this pattern:
action <-> business delegate <-> session façade <-> dao and there are certain database errors that I want to be displayed to the user via ActionMessages. Currently, the façade returns a record id (positive value) or error number (negative value). The delegate passes the error value on to the action, which creates the ActionMessage. My co-workers are of the opinion that the façade should return record ids or exceptions, and that the delegate should capture and translate these exceptions into error values, which are then passed to the action. Which way is better? Are there any other methods of doing this? Wiebe de Jong http://frontierj.blogspot.com <http://frontierj.blogspot.com/>
