my lein started not working mysteriously. i can't even get lein version to
work w/o a weird error:
lein version
Mar 31, 2014 3:11:38 PM org.apache.http.impl.client.DefaultRequestDirector
tryConnect
INFO: I/O exception (java.net.NoRouteToHostException) caught when
connecting to the target host:
Hi --
Building some generic joining functionality on top of cascalog, the clojure
package for big data.
I have a join function that is defined like this:
(defn join [lhs rhs join-ons] ..implementation ...)
lhs and rhs are subqueries. the join returns then another query that is a
join of the
hi all -- i am running a clojure based library (cascalog) on top of
hadoop. i started getting errors on loading a class with the follow
stack trace:
Caused by: java.lang.RuntimeException: java.lang.RuntimeException:
java.lang.ClassNotFoundException: views.visit-facts, compiling:(views/
visit_facts
that is exactly what i was looking for ! thanks!
On Jan 14, 1:33 am, Baishampayan Ghose wrote:
> Something like (:arglists (meta #'my-func)) ?
>
> Regards,
> BG
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> On Sat, Jan 14, 2012 at 12:01 PM, Andrew Xue wrote:
> > give
given something like
(defn my-func [a b c] (str a b c))
is there something like (extract-parameters my-func) which returns (a
b c)?
thanks,
andy
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trying do something like this
(def my-keys [a b c])
(defn my-func [m] (let [{:keys my-keys} m] (prn a b c)))
(my-func {:a 1 :b 2 :c 3})
tried '[a b c], ['a 'b 'c], and ["a" "b" "c"] for my-keys but they all
give a Don't know how to create ISeq from: clojure.lang.Symbol error
thanks
andy
--
Hi all --
Trying to basically do something like Integer.class -- but ...
user=> (Integer/class)
user=> java.lang.NoSuchFieldException: class (NO_SOURCE_FILE:2)
user=> (Integer/getClass)
java.lang.NoSuchFieldException: getClass (NO_SOURCE_FILE:4)
Some (not so pretty) workarounds are
(.getClass
the below seems odd
user=> (contains? [1 2] 1)
true
user=> (contains? ["a" "b"] "a")
false
am i missing something?
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this doesn't work:
user=> (defn if-a [a b] (if (a) (str a) (str b)))
#'user/if-a
user=> (if-a nil "b")
java.lang.NullPointerException (NO_SOURCE_FILE:0)
user=> (if-a "a" nil)
user=> java.lang.ClassCastException: java.lang.String cannot be cast
to clojure.lang.IFn (NO_SOURCE_FILE:0)
this does work