Thanks for this. I was steered fowards proxy-super and was all set.
On Feb 19, 11:19 am, Chouser <[email protected]> wrote: > On Thu, Feb 19, 2009 at 9:09 AM, Eric Thorsen <[email protected]> wrote: > > > In some cases, the Java classes give you an interface where you have > > to do all kinds of shenanigans to handle various cases (like the cell > > renderer) where a call to a multi-method would be so much cleaner > > (IMO). I really just wanted to create a stub class for this 1x. The > > above was not bad since it was just 1 function. > > Anyone else doing similar things? > > I've done such shenanigans with JTable cells and proxy, though a > multimethod was a poor fit in my case: > > (.setDefaultRenderer table Object > (proxy [DefaultTableCellRenderer] [] > (getTableCellRendererComponent [tbl obj isSelected hasFocus r c] > (let [{:keys [level]} (nth rows r)] > (doto this > (.setForeground (condp > level > 0 Color/white > 10 Color/blue > 20 Color/red > 30 Color/magenta > Color/black)) > (.setText (str obj))))))) > > If you need access to a super class method, you can use proxy-super. > This, for example, is a really wordy way to do essentially nothing: > > (.setDefaultRenderer table Object > (proxy [DefaultTableCellRenderer] [] > (getTableCellRendererComponent [tbl obj isSelected hasFocus r c] > (proxy-super getTableCellRendererComponent > tbl obj isSelected hasFocus r c)))) > > --Chouser --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
