This method that makes a simple call to the log4j library throws an
exception even though the message it written to the file. Not sure if
there has something to do with static methods again.
user>( defn logtrace[message](
(let [logger (org.apache.log4j.LogManager/getLogger "Stream")](
.log l
Hi,
On 18 Apr., 09:43, MohanR wrote:
> user>( defn logtrace[message]( ; <- paren?
> (let [logger (org.apache.log4j.LogManager/getLogger "Stream")](
> .log logger org.apache.log4j.Level/FATAL message
> )
> )) ; <- paren?
> )
You don't say what the exception is, but I suspect a NPE. If it
Thanks. There is no NPE now.
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hello,
i'm trying to start learning clojure with lein but i get into
trouble. I'm doing simple project:
> lein new foo
> cd foo
> lein deps
> echo '(println "hello")' >> src/foo/core.clj
> lein run -m foo.core
hello
Exception in thread "main" java.lang.NullPointerException
(NO_SOURCE_FILE:1)
Hi,
lein run looks for a -main function in your source file. This is a
convention
borrowed from java (and other languages).
The null pointer exception is probably lein or clojure looking for -main.
> echo '(defn -main [] (println "no exception)' >> src/foo/core.clj
> lein run -m foo.core
hello
a
To use lein run, you need to do two things:
1) Write a -main function (defn -main [] ... ) in whatever namespace you
like (you could put it in the core namescape, like you did in your echo
statement for the (println "foo")). For example:
(defn -main []
(println "foo"))
2) Specify which names
(Sent the below email earlier but for some reason didn't make it to the list)
I wasn't aware of the group-by function. Being new to clojure, I spent a lot of
time coming up with my complex function. Seeing the one line solution really
blew me away. Thanks!!
Follow up questions on my problem (my
You may want to follow this thread and look for the latest version of
Clojure in Small Pieces:
http://groups.google.com/group/clojure/browse_thread/thread/460417fe45f314c3/db1e7b58031efc7e
On Apr 17, 12:27 pm, Terje Dahl wrote:
> I would very much like to study and understand how Clojure works
>
Hello,
The -?> and -?>> macros are currently inside "old", "soon to be
deprecated" clojure contrib.
They have proven useful to me a number of times, and I personnally
wouldn't see them stay in the soon "deprecated" , "not maintained
anymore" old clojure contrib repo/jar. (Not to say that I would
On 18 April 2011 16:47, Laurent PETIT wrote:
> So the question is: do a sufficiently important number of other people
> use and want them as well ? If so, I may ask to the clojure-dev ml if
> and how and/or where we could move this macro so that it is still
> visible and `usable`.
I use it, and
I definitely find them useful.
On Apr 18, 8:47 am, Laurent PETIT wrote:
> Hello,
>
> The -?> and -?>> macros are currently inside "old", "soon to be
> deprecated" clojure contrib.
>
> They have proven useful to me a number of times, and I personnally
> wouldn't see them stay in the soon "deprecat
I use -?> quite often.
On Mon, Apr 18, 2011 at 11:47 AM, Laurent PETIT wrote:
> Hello,
>
> The -?> and -?>> macros are currently inside "old", "soon to be
> deprecated" clojure contrib.
>
> They have proven useful to me a number of times, and I personnally
> wouldn't see them stay in the soon "de
On Mon, Apr 18, 2011 at 9:33 AM, James Reeves wrote:
> I use it, and I think more people would use it if this were in core.
I only discovered them recently - they would certainly be more
discoverable in core and that would lead to greater use (so the
question then will be whether Clojure/core con
On 18 Apr 2011, at 17:47, Laurent PETIT wrote:
The -?> and -?>> macros are currently inside "old", "soon to be
deprecated" clojure contrib.
I must confess that I don't even know what those macros do, so I have
no opinion.
However, I think the question of "what will happen to module
cloju
I very much like the -?> and -?>> macros and fine them pretty useful.
I'd support their addition into core.
Also, regarding Konrad's comment:
I also find a lot of random one-off things in old contrib that I think
are useful to use as well as to read through some of the source. I
think something l
+1 for Konrad's Monad library
sent from my mobile device
On Apr 18, 2011 9:19 PM, "Paul deGrandis" wrote:
> I very much like the -?> and -?>> macros and fine them pretty useful.
> I'd support their addition into core.
>
> Also, regarding Konrad's comment:
> I also find a lot of random one-off th
Hi,
For the last few weeks, I've been working on a Clojure Swing wrapper
called Seesaw. I've learned a lot about Clojure so far, but I think
it's time to ask for some feedback. If I wait 'til it's perfect or
complete, ... well, then no one would ever hear from me. The code can
be found on github
On Apr 18, 2011, at 2:49 PM, Konrad Hinsen wrote:
On 18 Apr 2011, at 17:47, Laurent PETIT wrote:
The -?> and -?>> macros are currently inside "old", "soon to be
deprecated" clojure contrib.
I must confess that I don't even know what those macros do, so I
have no opinion.
However, I thin
> On Apr 18, 2011, at 2:49 PM, Konrad Hinsen wrote:
>> If nothing else is decided collectively, I'll maintain them as private
>> projects on Google Codes or Bitbucket.
If they don't end up as part of the new lineup of contrib libraries,
would you at least keep them on github.com?
On Mon, Apr 18,
I haven't had a chance to look over more than the README, but I was
actually considering writing something like this myself. Before I
progress any further, I must say: thank you so much for doing this so
that I don't have to.
On Apr 18, 5:57 pm, Dave Ray wrote:
> Hi,
>
> For the last few weeks, I
Rich,
Thanks for the feedback and righting some things for me. Can you
speak to the -?> and -?>> macros, specifically if you think nil should
be handled differently, or if these macros code find a new home in
core?
That said, I'd happily pitch in and help maintain a handful of the
contrib libs f
2011/4/19 Rich Hickey :
>
> On Apr 18, 2011, at 2:49 PM, Konrad Hinsen wrote:
>
>> On 18 Apr 2011, at 17:47, Laurent PETIT wrote:
>>
>>> The -?> and -?>> macros are currently inside "old", "soon to be
>>> deprecated" clojure contrib.
>>
>> I must confess that I don't even know what those macros do,
On 19 Apr 2011, at 03:02, Sean Corfield wrote:
On Apr 18, 2011, at 2:49 PM, Konrad Hinsen wrote:
If nothing else is decided collectively, I'll maintain them as
private
projects on Google Codes or Bitbucket.
If they don't end up as part of the new lineup of contrib libraries,
would you at le
On 19 Apr 2011, at 02:15, Rich Hickey wrote:
The only criterion for migrating into new contrib is someone willing
to do the work of moving, and, subsequently, maintaining.
OK, thanks for the clarification!
Stuart Sierra has documented the process here:
http://dev.clojure.org/display/design
On Mon, Apr 18, 2011 at 11:25 PM, Konrad Hinsen
wrote:
> I'll try to see if I can manage to migrate to new contrib (I am not exactly
> looking forward to all those new tools to learn)
I hadn't needed to deal with maven until I tried to set up
clojure.java.jdbc - but that was the only piece I was
I haven't look nothing but the REAME too, but the project seems
promising :)
Good work and keep improving it!
Alfredo
On Apr 19, 3:23 am, Rayne wrote:
> I haven't had a chance to look over more than the README, but I was
> actually considering writing something like this myself. Before I
> progr
On 19 April 2011 08:25, Konrad Hinsen wrote:
> On 19 Apr 2011, at 03:02, Sean Corfield wrote:
>
>>> On Apr 18, 2011, at 2:49 PM, Konrad Hinsen wrote:
If nothing else is decided collectively, I'll maintain them as private
projects on Google Codes or Bitbucket.
>>
>> If they don't end
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