On Thursday, June 11, 2015 at 2:19:56 PM UTC-5, Andy Fingerhut wrote:
You can override hashCode and/or hasheq methods in deftype.
I've been unable to do it. Is there something special needed to allow this
to work?
user= (defrecord Foo [x] Object (hashCode [this] 42))
CompilerException
Related to this, another thing I would like Clojure to provide is an easy
way to opt-in for map-like function application for defrecords. Right now,
Clojure doesn't implement function application for records, and it is a
glaring incompatibility that causes bugs when you switch back and forth
So just to explain this a little more, recently I wanted something
record-like with custom hashing and equality for my ubergraph library.
Unfortunately, you can't do this with defrecord, and starting from deftype
and re-implementing all the map-like semantics from scratch is a total pain.
So what
On Thursday, June 11, 2015 at 2:12:12 PM UTC-5, puzzler wrote:
Zach Tellman's potemkin library includes several useful ways to tweak
deftypes and defrecords. I wish Clojure itself provided more ways to do
this, but in the meantime, potemkin is the best way to create something
custom, like
deftype allows you to override hashCode and/or hasheq (I believe defaulting
to identity-based implementations from java.lang.Object). defrecord does
not.
As mentioned in another message, potemkin may provide easier building
blocks to build on than deftype.
Andy
On Thu, Jun 11, 2015 at 11:10
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Prismatic has some document for deftype/defrecord/map, hope it's useful
to you:
https://github.com/Prismatic/eng-practices/blob/master/clojure/20130926-data-representation.md
On 06/12/2015 02:36 AM, Mars0i wrote:
I think that the following is all
Re IFn support for defrecord, I don't actually know the reason that's not
built-in. I am not aware of an existing ticket for this.
Of course, at this point many people patch it in, so we would need to consider
potential breakage from that.
--
You received this message because you are
Hi all,
I'm toying around with boot and try to get my leiningen config converted
to it.
My build.boot contains
--8---cut here---start-8---
(set-env!
:resource-paths #{src resources}
:dependencies '[[org.clojure/clojure 1.7.0-RC1]
...])
Hi all,
I'm toying around with boot and try to get my leiningen config converted
to it.
My Clojure project uses a third-party Java library which uses a
javax.tools.JavaCompiler to compile classes at runtime. By default,
such a JavaCompiler compiles with the CLASSPATH which is the value of
the
On Friday, June 12, 2015 at 11:46:17 AM UTC-4, Mars0i wrote:
Oh, yes, and that's an interesting idea to wrap a record in an atom or
delay. For my present uses that would be more trouble than it's worth, but
it's something worth keeping in mind for other situations.
Putting a unique
Your definitions are correct, but in a different domain: you are using the
mathematical definitions.
What these functions give you is information about the representation of
the numbers in memory, not information about the numbers themselves. For
example, (integer? 1.0) will give you false.
A
Paul,
This is great news. Looking forward to using it.
cheers,
Bruce
On Fri, Jun 12, 2015 at 4:35 PM, Paul Ingles p...@oobaloo.co.uk wrote:
Hi all,
I'm delighted to say 0.3.1 is released and available on Clojars.
It's been a long while since we've made any big changes to clj-kafka so I'm
When I first wrote a Clojure web app, I followed a lot of the basic
tutorials out there, and those tend to create a lot of global vars. So, for
instance, I used the defroutes macro from Compojure, which left me with a
global app-routes var.
But lately I wanted to switch to a style that would
On Friday, June 12, 2015 at 1:34:20 AM UTC-5, Andy Fingerhut wrote:
deftype allows you to override hashCode and/or hasheq (I believe
defaulting to identity-based implementations from java.lang.Object).
defrecord does not.
Sorry--I misread your earlier statement about this. That's good to
Oh, yes, and that's an interesting idea to wrap a record in an atom or
delay. For my present uses that would be more trouble than it's worth, but
it's something worth keeping in mind for other situations.
On Friday, June 12, 2015 at 10:41:57 AM UTC-5, Mars0i wrote:
puzzler, thanks for the
Hi all,
I'm delighted to say 0.3.1 is released and available on Clojars.
It's been a long while since we've made any big changes to clj-kafka so I'm
very happy to say we've caught up over the past couple of days. Most of the
changes were the result of submissions from the community but I
puzzler, thanks for the explanation about how you built on potemkin's map
options. Probably not useful for my current application--easier to just
work around deftype's limitations on an ad-hoc basis. But that takes some
of the fun (convenience) out of Clojure (and unnecessarily, I feel, I
Hi Paul.
This looks great - I am looking forward to replace my hacked wrapper for
the Java (and Scala...) API with this code.
One question: if I have a zk consumer stream with auto.commit.enable set to
false, how do I manually commit the changes?
Thanks,
Omri
On Friday, June 12, 2015 at
Hi Omri,
There's clj-kafka.zk/set-offset! for exactly that
purpose: https://pingles.github.io/clj-kafka/clj-kafka.zk.html#var-set-offset.21
Thanks,
Ragnar
On Friday, 12 June 2015 18:23:23 UTC+1, Omri Hurvitz wrote:
Hi Paul.
This looks great - I am looking forward to replace my hacked
I bumped up the priority on CLJ-1224 to make sure it got pulled into 1.8
(based on being reminded about it here). I don't expect it to be included
in 1.7.
On Thursday, June 11, 2015 at 9:30:21 PM UTC-5, Mike Rodriguez wrote:
I agree the hashCode performance for records is a concern due to
Great stuff! Thanks Paul, Ragnar and others!
--
Henrik
On Fri, Jun 12, 2015 at 5:35 PM, Paul Ingles p...@oobaloo.co.uk wrote:
Hi all,
I'm delighted to say 0.3.1 is released and available on Clojars.
It's been a long while since we've made any big changes to clj-kafka so
I'm very happy
21 matches
Mail list logo
