How can i typecast a JavaObject?

Hi I want to output some sound with javax.sound.sampled. But from AudioSystem.getSourceDataLine i get a "AbstractDataLine" which i need to typecast to a "SourceDataLine". How can i make this typecast in clojure? Thanks Fabian -- -- You received this message because you are subscribed to

Re: How can i typecast a JavaObject?

(cast SourceDataLine a-instance) On Monday, January 20, 2014 4:46:23 PM UTC+8, Fabian Page wrote: > > Hi > > I want to output some sound with javax.sound.sampled. > > But from AudioSystem.getSourceDataLine i get a "AbstractDataLine" which i > need to typecast to a "SourceDataLine". How can i ma

Re: How can i typecast a JavaObject?

Hi, Am Montag, 20. Januar 2014 09:46:23 UTC+1 schrieb Fabian Page: > > > I want to output some sound with javax.sound.sampled. > > But from AudioSystem.getSourceDataLine i get a "AbstractDataLine" which i > need to typecast to a "SourceDataLine". How can i make this typecast in > clojure? > >

slingshot.slingshot, clj + cljs

Hi, ## Basic Question Is there a library that: (1) is like slingshot.slingshot and (2) has the same syntax + semantics in both clj and cljs ? ## Situation I'm stuck in: * I'm writing code in cljx. Thus, as much as possible, I'd prefer code that simultaneously work with both clj and cljs

Re: How can i typecast a JavaObject?

I get a: java.lang.IllegalArgumentException: Can't call public method of non-public class: public final void com.sun.media.sound.AbstractDataLine.open(javax.sound.sampled.AudioFormat,int) throws javax.sound.sampled.LineUnavailableException >From a tutorial i saw that they first typecast the A

Re: How can i typecast a JavaObject?

>From what i understood cast only checks if a-instance can be a SourceDataLine. But it doesn't cast the AbstractDataLine to a SourceDataLine? Thanks Fabian Am Montag, 20. Januar 2014 09:58:51 UTC+1 schrieb Gaofeng Zeng: > > (cast SourceDataLine a-instance) > > On Monday, January 20, 2014 4:46:2

Re: slingshot.slingshot, clj + cljs

Maybe your needs are met by the now builtin ex-info and ex-data. They work the same in clj and cljs: (try (throw (ex-info "msg" {:data "map"})) (catch :default e (ex-data e))) kind regards 2014/1/20 t x > Hi, > > ## Basic Question > > Is there a library that: > (1) is like slingshot

Re: How can i typecast a JavaObject?

Hi, Am Montag, 20. Januar 2014 11:34:29 UTC+1 schrieb Fabian Page: > > > I get a: > java.lang.IllegalArgumentException: Can't call public method of non-public > class: public final void > com.sun.media.sound.AbstractDataLine.open(javax.sound.sampled.AudioFormat,int) > > throws javax.sound.samp

Re: slingshot.slingshot, clj + cljs

Very nice. Much better than the past 2 hours I spent writing a simpler version of Throwable w/ data, i.e.: (ns MyError (:gen-class :extends java.lang.Throwable :state state :init init :constructors {[Object] []})) (defn -init [obj] [[] obj]) Thanks! On Mon, Jan 20, 2014 at 3:41

Re: How can i typecast a JavaObject?

Thanks a lot! That problem is solved now :) Fabian Am Montag, 20. Januar 2014 12:51:43 UTC+1 schrieb Meikel Brandmeyer (kotarak): > > Hi, > > Am Montag, 20. Januar 2014 11:34:29 UTC+1 schrieb Fabian Page: >> >> >> I get a: >> java.lang.IllegalArgumentException: Can't call public method of >> no

Re: Looking to migrate thousands of Clojure applications from 1.2 to 1.5.

Thank you, Toby. I've shared this with my colleagues involved in this project and we're taking a look at it now. On Thursday, January 16, 2014 12:59:47 PM UTC-5, Toby Crawley wrote: > > The isolation in Immutant is achieved (in part) by ShimDandy[1], which > can be used outside of Immutant with

Re: Looking to migrate thousands of Clojure applications from 1.2 to 1.5.

An update, Toby--my colleague wrote a simple app with ShimDandy and it's working. So far so good. We're going to present it as a possible solution to our users on Wednesday and see what happens. On Thursday, January 16, 2014 12:59:47 PM UTC-5, Toby Crawley wrote: > > The isolation in Immutant i

Re: Looking to migrate thousands of Clojure applications from 1.2 to 1.5.

Good deal, thanks for keeping me posted. Let me know if you run in to any issues. - Toby solo.l...@gmail.com writes: > An update, Toby--my colleague wrote a simple app with ShimDandy and it's > working. So far so good. We're going to present it as a possible solution > to our users on Wednesda

Re: Looking to migrate thousands of Clojure applications from 1.2 to 1.5.

Thanks, Vijay. We'll evaluate this, too. On Friday, January 17, 2014 5:20:12 PM UTC-5, Vijay Kiran wrote: > > > May be this would help? https://github.com/flatland/classlojure > > On Thursday, January 16, 2014 5:13:11 PM UTC+1, solo...@gmail.com wrote: >> >> Quick update and question: We've put to

Re: oob schemas, re: The Language of the System

On Sunday, January 19, 2014 12:48:36 PM UTC-6, Brian Craft wrote: > > That helps, thanks. It's still unclear to me that this is important enough > to worry about. What application or service is hindered by string encoding > a date in JSON? An example would really help. It's not compelling to as

[ANN] play-clj, a game library

Today I'm releasing play-clj , a Clojure wrapper for LibGDX that allows you to write games for desktop OSes, Android, and iOS from the same Clojure codebase. The template automatically creates Leiningen projects for all three platforms: lein new play-clj hello

Re: [ANN] play-clj, a game library

Congratulations ! 2014/1/20 Zach Oakes > Today I'm releasing play-clj , a > Clojure wrapper for LibGDX that allows you to write games for desktop OSes, > Android, and iOS from the same Clojure codebase. The template automatically > creates Leiningen projects f

Re: [ANN] play-clj, a game library

Thanks! I submitted it to HN naturally: https://news.ycombinator.com/item?id=7090003 On Monday, January 20, 2014 10:46:06 AM UTC-5, Laurent PETIT wrote: > > Congratulations ! > > > 2014/1/20 Zach Oakes > > >> Today I'm releasing play-clj , a >> Clojure wrapper

Re: [ANN] play-clj, a game library

Might be a good topic for a Clojure/West submission https://cognitect.wufoo.com/forms/clojurewest-2014-call-for-presentations/ On Monday, January 20, 2014 9:31:50 AM UTC-6, Zach Oakes wrote: > > Today I'm releasing play-clj , a > Clojure wrapper for LibGDX

Re: Redefining the notion of S-EXP, and pattern matching S-EXPs in clojure

core.match can do some of this. https://github.com/clojure/core.match data.zip has some extensions beyond zip that are useful (although a lot of what's there is cast in terms of xml-handling uses): https://github.com/clojure/data.zip I have rolled variants of this a few times, mostly using zipp

Re: Clojure development & laptop battery usage

On Sunday, January 19, 2014 11:19:45 PM UTC-6, g vim wrote: > > critical factor. I'm not sure I can work outside Leiningen, though. It > seems to be as much a part of the Clojure development process as anything. > Just to be clear, Leiningen only eats CPU when started in an arbitrary directory.

[Job Opportunity] Clojure Web Developer Role

A UK-based Clojure job for a change... Metail is a start-up with a tech team based in the centre of Cambride. We are looking to recruit a junior developer to work on a mix of RESTful API handlers and frontend web applications, all build using Clojure. This is an ideal job for a recent graduate or s

Re: [ANN] play-clj, a game library

Thank you, I'll look into this. Someone mentioned it to me at our Pittsburgh Clojure meetup last week. I don't think I've ever been to the west coast! On Monday, January 20, 2014 11:36:16 AM UTC-5, Alex Miller wrote: > > Might be a good topic for a Clojure/West submission > > https://cognite

Re: [ANN] play-clj, a game library

Is there any chance of support for javascript/webgl? On Monday, January 20, 2014 10:31:50 AM UTC-5, Zach Oakes wrote: > > Today I'm releasing play-clj , a > Clojure wrapper for LibGDX that allows you to write games for desktop OSes, > Android, and iOS from the

Re: [ANN] play-clj, a game library

I don't have any plans at the moment for that. LibGDX actually does allow you to compile your game to HTML/JS, but it uses GWT which is a source code translator, so it only works with Java. Also, it doesn't have access to the parts of LibGDX that rely on native code, such as the physics engine

Re: cljx repetition

I am not actually familiar with this form, don't know what [types] actually does: (:require [macros.arrow :refer (=>)] [types]) I don't think you need to be requiring the cljs macros twice as you seem to be doing in both forms. Macros are in general somewhat of a sore spot in

Clojure run time isolation with the ability to share data structures

Hello I am newbie to Clojure. Been using for a couple of months now. With that disclaimer out of the way, we have use-cases where we would like multiple clojure run times with in the same JVM and have these run times share clojure data structures among themselves. We attempted to solve this p

let bindings

Hi, (let bindings form) is a special form. As I understand it, let can be reformulated in terms of functions e.g. (let [x 2] (* x 20)) equivalent to ((fn [x] (* x 20)) 2) (let [x 3 y (* x x)] (- y x)) equivalent to ((fn [x] ((fn [x y] (- y x)) x (* x x))) 3) So if we can always reformulate i

Re: let bindings

typo : was=way -- -- 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,

Re: let bindings

Hi, fn does additional stuff which let doesn't. fn returns an object which you can store and later call invoke on it. This is more than let promises. From the implementation point, fn creates java class. This is not needed for let. JW On Mon, Jan 20, 2014 at 9:38 PM, Andy Smith wrote: > Hi, >

Re: Clojure web server benchmarks

I just submitted a PR to include Immutant in the benchmarks, per a request from Chas on Twitter, and then I noticed Shantanu filed an issue to include Undertow, so I created a PR for it, too, since Immutant 2.x will be based on it. The tl;dr is that Immutant performs a little worse than the :ge

Re: Nginx-Clojure Let You Deploy Clojure Web App on Nginx Without Any Java Web Server

Hi Xfeep, What are the good ways to handle some heavy Clojure calculations when using nginx-clojure? Under nginx model it's bad to block other incoming requests by holding a working thread for too long, right? So is it better to route complex job to http-kit? Or to use some kind of queue? Or may

[ANN] Clidget, a lightweight CLJS state utility that helps you build small, composable UI ‘widgets’.

Hi all, I've recently released Clidget v0.1.0, a new lightweight CLJS state utility that allows you to build UIs through small, composable widgets. Quick links: - GitHub (README, Rationale and Getting Started) - Sample 'counter' application

[ANN] Clidget, a lightweight CLJS state utility that helps you build small, composable UI ‘widgets’.

Hi all, I've recently released *Clidget v0.1.0*, a new lightweight CLJS state utility that allows you to build UIs through small, composable widgets. Quick links: - GitHub (README, Rationale and Getting Started) - Sample 'counter' application

Re: [ANN] Yesql 0.3.0 - Clojure & SQL queries rethought.

I might have missed this in the docs, but is there support for c.j.j's optional keyword arguments such as :row-fn and :identifiers? I couldn't quite figure out how to get that to work with yesql, as far as I can tell you can only pass query parameters at this point. On Thu, Jan 9, 2014 at 3:00 PM

Re: Does Pedestal have a future in the long run

On Monday, November 11, 2013 6:38:23 AM UTC-8, Brenton wrote: > If you are looking for something that is finished and stable then do not > look at Pedestal. We will indicate stability with version numbers. When you > see a release of version 1.0 then you may want to have another look. A 1.0 >

Re: let bindings

Hey Andy! On Mon, Jan 20, 2014 at 12:38:23PM -0800, Andy Smith wrote: > So if we can always reformulate in this was, why cant let be implemented as > a macro rather than a special form? It can. Quite easily, in fact: (defmacro my-let [bindings & body] (if (empty? bindings) `(do ~@body)

Re: let bindings

On 1/20/14, 12:38 PM, Andy Smith wrote: > Hi, > > (let bindings form) is a special form. As I understand it, let can be > reformulated in terms of functions e.g. > > (let [x 2] (* x 20)) equivalent to ((fn [x] (* x 20)) 2) > (let [x 3 y (* x x)] (- y x)) equivalent to ((fn [x] ((fn [x y] (- y x

Re: let bindings

> If there's another reason then I'm hoping someone will correct me, but I > can't think of any other reasons at the moment. Since Clojure doesn't do tail call elimination implementing let atop fn would also use up stack. I believe many or all Schemes (which are required by the spec to eliminat

The :type key is not printed in metadata.

(set! *print-meta* true) (pr-str (with-meta {} {:type :foo})) >> "{}" (pr-str (with-meta {} {:class :foo})) >> "^{:class :foo} {}" Is that how it's supposed to be? I find that behavior weird and troublesome for those wanting to use the :type key when serializing data (like me). -- -- You rece

Re: Clojure development & laptop battery usage

On Jan 20, 2014, at 11:14 , Mars0i wrote: > Just to be clear, Leiningen only eats CPU when started in an arbitrary > directory. When started from a Leiningen project directory, it doesn't use > CPU unless I tell it to. I have not investigated what it is in the project > directory that Leinin

Re: [ANN] play-clj, a game library

On Jan 20, 2014, at 09:31 , Zach Oakes wrote: > Today I'm releasing play-clj, a Clojure wrapper for LibGDX that allows you to > write games for desktop OSes, Android, and iOS from the same Clojure codebase. Neat! How is Clojure’s performance on the latest Android devices? Good enough for simp

Re: Clojure development & laptop battery usage

No, didn't see it as a real problem. Odd. Just checked my MBP, and the CPU-eating behavior doesn't occur on mine either. Only on the MBA. Both with Leiningen 2.3.4 and Java 1.6.0_65, and same OS (10.6.8--I don't upgrade OSes often). I'll have to check whether there's something different I

Re: [ANN] play-clj, a game library

You do not need to jailbreak your iOS device, because it isn't actually running Java. Instead, it uses RoboVM to translate the bytecode into ARM machine code. There are already several LibGDX games written in Java on the App store. Regarding performance, play-clj is ver

[Large File Processing] What am I doing wrong?

I'm processing a large csv with Clojure, honestly not even that big (~18k rows, 11mb). I have a list of exported data from a client and I am de-duplicating URLs within the list. My final output is a series of vectors: [url url-hash]. The odd thing is how slow it seems to be going. I have tri

Re: Clojure web server benchmarks

Thanks Jim, that's terrific! For those following, updated results now available: https://github.com/ptaoussanis/clojure-web-server-benchmarks -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegrou

Re: Redefining the notion of S-EXP, and pattern matching S-EXPs in clojure

Take a look at clara-rules by Ryan Brush: https://github.com/rbrush/clara-rules Clara pattern matches in the RETE tradition but works very well with Clojure records and maps (and Java objects.) Depending on how you expose/insert your data into the working memory will make it easier or harder t

[Job spam] Clojure data science in Singapore

A Southeast Asian eCommerce startup is looking for Clojurians to help build a data science team. http://functionaljobs.com/jobs/8671-clojure-data-scientist-at-lazada Details in link, but if you like to code in Clojure (and other languages) and are interested in any of the following, please appl

Re: The :type key is not printed in metadata.

The relevant piece of code is at https://github.com/clojure/clojure/commit/6ab23a6e3c4c65868dcf042bd851933202b80f65 :type metadata has a special semantics, see https://github.com/clojure/clojure/blob/master/src/clj/clojure/core.clj#L3338and https://github.com/clojure/clojure/blob/master/src/clj/cl