Java libraries are handled differently to native Clojure libraries. You can
either enter the full class with packages, such as:
(java.util.UUID/randomUUID)
Or you can use import to access the class without the package:
(import 'java.util.UUID)
(UUID/randomUUID)
To check you have access to the java library, try entering the following
class name at the REPL:
edu.emory.mathcs.jtransforms.fft.DoubleFFT_1D
If the library is loaded, this should return a class object, rather than
erroring.
- James
On 30 April 2014 16:40, Alan Forrester
<alanmichaelforres...@googlemail.com>wrote:
> I would like to try the JTransforms Java FFT library from Clojure:
>
> https://sites.google.com/site/piotrwendykier/software/jtransforms
>
> I created a new folder went to that folder in a console and typed
>
> lein try net.sourceforge.jtransforms/jtransforms "2.4.0"
>
> lein try retrieved some jars and poms from central, presumably
> jtransforms and its dependencies and started a REPL.
>
> Having got this far I can't seem to figure out how to require
> jtransforms in the REPL. I have tried
>
> (require '[x :as trans])
>
> for various values of x such as
> "net.sourceforge.jtransforms/jtransforms" and
> "net.sourceforge.jtransforms.jtransforms", "jtransforms.jtransforms"
> and the REPL keeps saying
>
> FileNotFoundException Could not locate jtranforms__init.class or
> jtransforms.clj on classpath: clojure.lang.RT.load (RT.java:443)
>
> I think I must be misunderstanding how to download libraries and their
> dependencies or how to require them when they have been downloaded.
> Can anybody shed some light on this for me?
>
> Thanks,
> Alan
>
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