On Sun, Sep 7, 2008 at 2:55 PM, Tom Emerson <[EMAIL PROTECTED]> wrote:
> Hi folks, > I'm trying to use the proxy support to provide a filter to > java.io.File#listFiles and am not having any luck: I'm sure I'm doing > something stupid, and would appreciate some tips. Here's what I'm doing: > > (import '(java.io File FilenameFilter)) > > (def filter (proxy [FilenameFilter] [] > (accept [dir name] > (. name (endsWith "_2.jpg")))) > > (def the-dir (new File "/Users/tree/images")) > > (map #(. %1 getCanonicalPath) > (. the-dir (listFiles filter))) > > > When I evaluate this, I get an IllegalArgumentException: > > java.lang.IllegalArgumentException: No matching method found: listFiles > java.lang.IllegalArgumentException: No matching method found: listFiles > at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:62) > at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:26) > at clojure.lang.Compiler$InstanceMethodExpr.eval(Compiler.java:1087) > at clojure.lang.Compiler$InvokeExpr.eval(Compiler.java:2568) > at clojure.lang.Compiler.eval(Compiler.java:3780) > at clojure.lang.Repl.main(Repl.java:75) > > If I don't include the filter in the call to the listFiles method, then it > works fine. > Did the def of filter succeed for you? When I tried your code, I got an error "Name conflict, can't def filter because namespace: user refers to:#'clojure/filter". Then if I proceed and try to do the map operation, I get the no matching method found error because filter is the fn clojure/filter, not a FilenameFilter. --Shawn --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com 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 -~----------~----~----~----~------~----~------~--~---
