On Thu, Jun 16, 2011 at 6:12 PM, Stuart Halloway <stuart.hallo...@gmail.com> wrote: > > Hi Gregg, > It appears that LocalServiceTestHelper's constructor takes an array > of LocalServiceTestConfig. Try > (def bar (LocalServiceTestHelper. (into-array LocalServiceTestConfig [foo]))) > Stu
Hi Stu, Would you be the Stuart Halloway whose "Programming Clojure" book I bought last week? Nice work! Using into-array indeed solved the problem - I even found it in the book, p. 85. But if you're taking notes for the second edition this might be a good item for a "Java Interop Gotchas" list. The method definition looks like this: public LocalServiceTestHelper(LocalServiceTestConfig... configs) I.e. it uses the varargs op ... instead of []. The sample code uses: ... = new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig()); i.e. it passes a single object, not an array. The clojure code without into-array complains about bad class casting. So it looks like there is a minor impedance mismatch between Java and Clojure when it comes to varargs, unless I missed something. The rule seems to be: if the Java method takes varargs, pass it an explicit array. Thanks Gregg -- 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 Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
