Author Archives: admin

Clojure Users Group: Meetup in copenhagen, may 12th

Posted on April 29, 2011 by admin

I’ve managed to arrange a free DCUG meetup in Copenhagen in conjunction with Goto CPH. We will be several Clojure “stars”: Christophe Grand and Lau Jensen, Stefan Richter and Stefan Tilkov. Right now we have only one registration apart from … Continue reading →

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vectormap and pvectormap

Posted on October 14, 2010 by admin

So after attending Brian Goetz’ talk and Rich Hickey’s talk at JAOO Aarhus (eer, I mean Goto Aarhus), I was thinking about how to construct Clojure data structures in parallel. To start with something that wasn’t too complex, I decided … Continue reading →

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Clojure without the parentheses: looks a bit like ruby :)

Posted on August 31, 2010 by admin

I gave an introductory talk about Clojure at Trifork yesterday: https://secure.trifork.com/aarhus-2010/freeevent/index.jsp?eventOID=2713 I really wanted to focus on the core of Clojure: things like time/state management, functional programming, programming to contracts, meta programming, host interop, dynamics, interactivity and expressive power. I … Continue reading →

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Assoc and Clojure’s PersistentHashMap: part ii

Posted on August 16, 2010 by admin

Some time ago I wrote introductory posts that gave high-level overviews of how Clojure’s PersistentVector and PersistentHashMap work. In the PersistentHashMap post I promised that “In part 2 we look at how assoc works…” – it seems I never got … Continue reading →

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Conj-labs Clojure lessons part i

Posted on July 4, 2010 by admin

I attended the first conj-labs in Brussels, June 23-25. It was three days of intense Clojure learning with Clojure profiles: Christophe Grand and Lau Jensen. I must say it exceeded my expectations! Everyone was great and I really feel it … Continue reading →

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Is it just me or is this important

Posted on June 16, 2010 by admin

for all JVM-based languages http://www.infoq.com/news/2010/06/azul_ori?

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clj-ds: Clojure’s persistent data structures for Java

Posted on June 11, 2010 by admin

One of the appealing features of Clojure is the pervasive use of (efficient!) persistent data structures. (In previous posts I’ve shed some light on how PersistentHashMap and PersistentVector are implemented, although some of that information is slightly dated now). There … Continue reading →

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Stomple RC1: Combining WebSockets and Reliable Messaging

Posted on June 1, 2010 by admin

I’ve finished Release Candidate 1 for Stomple, my JavaScript Stomp library which uses WebSockets to access compatible Stomp Message Brokers (which includes JMS providers via StompConnect). Stomple is heavily inspired by Jeff Mesnil’s great stomp-websocket, but aims to be feature … Continue reading →

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My son

Posted on May 24, 2010 by admin
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Stomple: JMS via WebSockets

Posted on May 9, 2010 by admin

I’ve spent a couple of days working on Stomple (pronounced “stumble”). Stomple aims to be an easy to use, full-featured and robust Stomp client for JavaScript. You can watch a screencast of the transactional chat example. Screencast of transactional chat. … Continue reading →

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