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Dependency injection in Ceylon with Weld and Guice

I’m personally ambivalent about the benefits of dependency injection. On the one hand, I recognize its usefulness in certain container environments such as Java EE. (For the record, I was the author of the CDI 1.0 specification, with my JCP Expert Group.) On the other hand, given the nature of what I’ve been working on for the last few years, ...

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Docker Swarm Cluster using Consul

Docker Swarm is native clustering for Docker. It allows you create and access to a pool of Docker hosts using the full suite of Docker tools. Because Docker Swarm serves the standard Docker API, any tool that already communicates with a Docker daemon can use Swarm to transparently scale to multiple hosts. Docker Swarm has a Manager, a pre-defined Docker ...

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Reactive Development Using Vert.x


Lately, it seems like we’re hearing about the latest and greatest frameworks for Java. Tools like Ninja, SparkJava, and Play; but each one is opinionated and make you feel like you need to redesign your entire application to make use of their wonderful features. That’s why I was so relieved when I discovered Vert.x. Vert.x isn’t a framework, it’s a ...

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Reactive file system monitoring using Akka actors

In this article, we will discuss: File system monitoring using Java NIO.2 Common pitfalls of the default Java library Design a simple thread-based file system monitor Use the above to design a reactive file system monitor using the actor model Note: Although all the code samples here are in Scala, it can be rewritten in simple Java too. To quickly ...

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#GeekListener v.6

Hello hello hello! It’s time to publish a new #GeekListener digest! What was interesting during the last week? What trends in twitter among the developers? As usual, I’m going to comment on tweets which I liked more than others. By the way, on the past week was a big software development conference in Berlin – GOTO, where cool architects are ...

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What Are the Key Skills to Being a CTO?

You may have noticed that we’ve chatted with a lot of really smart people through our Inside Look interview series. As we wrap up 2015, we’re revisiting some of the sage advice we’ve encountered from these founders, CTOs, and engineers. We’re starting with a broad question this week: What are the skills necessary to being a CTO? According to our ...

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The generic filter in cuba platform – excel filters on steroids

As i promised last time, i plan to go through some features of the platform, that i think are very valuable. So i’m going to do a little series here. Starting with the obvious one’s like UI, Filtering, Security to some advanced features like Web Portal, extensibility, Auditing, dynamic attributes and so on. CUBA features #1 – generic filter In ...

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A Java EE 7 Application on OpenShift 3 With JBoss Tools

You can create and manage OpenShift applications in Eclipse with the latest version of the OpenShift Plugin for JBoss Tools. They are either pre-bundled with the latest JBoss Developer Studio (9.0.0.GA) or you can install them into an existing Eclipse Mars. This post walks you through deploying the Java EE 7 Hands-On-Lab in OpenShift with the JBoss Developer Studio. OpenShift 3 ...

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3 Reasons why You Shouldn’t Replace Your for-loops by Stream forEach

Awesome! We’re migrating our code base to Java 8. We’ll replace everything by functions. Throw out design patterns. Remove object orientation. Right! Let’s go! Wait a minute Java 8 has been out for over a year now, and the thrill has gone back to day-to-day business. A non-representative study executed by from May 2015 finds that 38% of their ...

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