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scala-logo

Scala: Predicate Composition with Lens-Like Structures

I’ve been playing around with a few ideas on how to apply a lens-like construct on arbitrary Scala collections that also combines the power of predicate composition as opposed to ...
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Compiling Lambda Expressions: Scala vs. Java 8

Lambda expressions have taken the programming world by storm in the last few years. Most modern languages have adopted them as a fundamental part of functional programming. JVM based ...
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I Don’t Like Scala

Yes, it is my opinion, and yes, it might seem like a hate-post. But I’ll try to address the issues I have with Scala and its surroundings. I have used Scala in a single, relatively ...
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Closures in Groovy

The simpliest explanation of a closure in Groovy is that it is anonymous function.                   def closure = { println "I am a closure" ...
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Your build tool is your good friend: what sbt can do for Java developer

I think for developers picking the right build tool is a very important choice. For years I have been sticking to Apache Maven and, honestly, it does the job well enough, even nowadays ...
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Three flavours of request-response pattern in Akka

Imagine a simple Akka actor system consisting of two parties: MonitoringActor and NetworkActor. Whenever someone (client) sends CheckHealth to the former one it asks the latter by sending ...
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Grails: Using Hibernate Filters

The Grails Hibernate Filters plugin makes it possible to use Hibernate Filters with GORM. Hibernate Filters provide additional restriction rules that can be applied to classes and collections. ...
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JavaScript routing in Play 2 (Scala edition)

In my previous post, I covered using JavaScript routing in Play 2 Java applications. Here’s the Scala version. It’s pretty much a copy of the previous article, to make it independent. One ...
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My Priorities for Scala

What TypeSafe Should be Working On There was a Twitter thread that started off discussing Clojure REPL usage but devolved into a discussion of Scala’s compiler. An Aside Well, ...
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Groovy’s Smooth Operators

Take a trip back to 1984.  Apple release the Macintosh, ‘The Final Battle‘ is about to commence in V and Scotland win the Five Nations completing a grand slam in the process. ...
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