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Promises and futures in Clojure
Clojure, being designed for concurrency is a natural fit for our Back to the Future series. Moreover futures are supported out-of-the-box in Clojure. Last but not least, Clojure is ...
Monitoring Key JVM Characteristics with Groovy, JMX, and RuntimeMXBean
Since J2SE 5, Platform MBeans have been available that allow some key characteristics regarding the JVM to be monitored and (even managed in some cases) via JMX. In addition, many JVM-based ...
Dependency injection with Scala macros: auto-wiring
You can look at dependency injection as a fancy name for passing parameters to a function (or constructor arguments to a constructor). However usually, DI containers do much more than ...
Gang of Four Patterns With Type-Classes and Implicits in Scala
Type-classes, as they’re known within the Scala language, have a wonderful place in library development. They make code open to extension, less verbose and simplify APIs. I’ve yet ...
Groovy and HTTP Servers
This article originally appeared in the January 2013 issue of GroovyMag. There’s no denying that the World Wide Web has become absolutely integral for information storage and delivery. ...
Futures in Akka with Scala
Akka is actor based, event-driven framework for building highly concurrent, reliable applications. Shouldn’t come a surprise that concept of a future is ubiquitous in a system ...
Finding Properties in JARs with Groovy
In previous blog posts I have looked at Searching JAR Files with Groovy to find entries (such as .class files) contained in the JAR and Viewing a JAR’s Manifest File with Groovy. ...
Using Twitter4j with Scala to perform user actions
Introduction My previous post showed how to use Twitter4j in Scala to access Twitter streams. This post shows how to control a Twitter user’s actions using Twitter4j. The primary ...
Complex Numbers in Scala
Overview I recently delivered an introductory talk about Scala at an internal geek’s event at SAP. In this talk, I used an example complex numbers class to illustrate important ...
Using twitter4j with Scala to access streaming tweets
Introduction My previous post provided a walk-through for using the Twitter streaming API from the command line, but tweets can be more flexibly obtained and processed using an API ...
