Category Archives: Jan’s Blog

Scalaz monads in Spring

Posted on February 3, 2012 by Jan Machacek

I won’t give you the category-theory based explanation of monads. Instead, I’m going to show you the application of monads, but not on Ints and Strings, but on ordinary domain instances; instances that we persist using Hibernate. Finally, we’ll run … Continue reading →

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Specs2 Spring 0.4

Posted on February 2, 2012 by Jan Machacek

We’re pleased to release version 0.4 of Specs2 Spring! 0.4 follows the very short-lived Maven Central practice-release 0.3. We now include support for Spring 2.5, 3.0 and 3.1; for the latest verion of Spring, we include bean profiles and environment … Continue reading →

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Publishing SBT projects to Nexus

Posted on January 28, 2012 by Jan Machacek

Specs2 Spring is available on Sonatype OSS and Maven Central! But how did we get there and what should you do to get the hosting, synchronisation to Maven Central and how do you automate the deployment process? Let’s tackle one … Continue reading →

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Specs2 Spring from sources

Posted on January 23, 2012 by Jan Machacek

Specs2 Spring is going into Maven Central as soon as possible (I’ve submitted a request at https://issues.sonatype.org/browse/OSSRH-2760), which means that all you’ll have to do to use it in your projects is to add: <dependency> <groupId>org.specs2</groupId> <artifactId>spring_${scala.version}</artifactId> <version>0.3</version> <scope>test</scope> </dependency> … Continue reading →

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Mixin composition using reflection

Posted on January 23, 2012 by Jan Machacek

I wanted to be able to construct Scala beans in my Spring application context, but I also wanted to be able to specify the mixins to be included in the constructed bean: <?xml version=”1.0″ encoding=”UTF-8″?> <beans xmlns=”http://www.springframework.org/schema/beans” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:context=”http://www.springframework.org/schema/context” xmlns:scala=”http://www.springframework.org/schema/scala” … Continue reading →

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What can Scala do for you?

Posted on January 20, 2012 by Jan Machacek

There are many new languages on the Java platform alongside the official Java language. Many have heard about Scala and many are considering using it in their code. So, how can Scala make your systems better? Is it really incredibly … Continue reading →

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Maven to SBT

Posted on January 4, 2012 by Jan Machacek

Find out how to move multi-module Maven projects into multi-project SBT projects, without sacrificing the plugins you were happily using in Maven. Continue reading →

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Spring I/O

Posted on December 30, 2011 by Jan Machacek

I’ll be speaking at Spring IO in Madrid in 17th to 18th February 2012. My talk will be Spring in Scala, showing how to make the most of Scala in your Spring applications. If you can, escape the winter blues, … Continue reading →

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Specs2 Spring 0.3

Posted on December 29, 2011 by Jan Machacek

Spring 3.1 brings bean profiles, allowing you to name sets of beans that will be included in your ApplicationContext according to your specifications. For example, I could have bean profiles named UCI and ACU. In both profiles, I will have … Continue reading →

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Merry Christmas

Posted on December 22, 2011 by Jan Machacek

import annotation.tailrec abstract class Tree(val left: Tree) { def o = new Ball(this) def x = new Spike(this) def * = new Candle(this) def oxo = new BigBall(this) def oo = new DoubleBall(this) def *** = new ElectricCandle(this) def / … Continue reading →

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