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Hibernate application-level repeatable reads

Introduction In my previous post I described how application-level transactions offer a suitable concurrency control mechanism for long conversations. All entities are loaded within ...
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Explore Git Internals with the JGit API

Have you ever wondered how a commit and its content is stored in Git? Well, I have, and I had some spare time over the last rainy weekend, so I did a little research. Because I feel ...
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Installing Drupal on FreeBSD

Drupal ports have been available on FreeBSD since quite a long time, and binary packages can be installed very quickly. However, manual setup is required to connect Drupal to the database ...
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Spring Boot / Java 8 / Tomcat 8 on Openshift with DIY

DIY cartridge is an experimental cartridge that provides a way to test unsupported languages on OpenShift. It provides a minimal, free-form scaffolding which leaves all details of the ...
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Let’s Stream a Map in Java 8 with jOOλ

I wanted to find an easy way to stream a Map in Java 8. Guess what? There isn’t! What I would’ve expected for convenience is the following method:                   public ...
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Stop Claiming that you’re Using a Schemaless Database

One of MongoDB’s arguments when evangelising MongoDB is the fact that MongoDB is a “schemaless” database: Why Schemaless? MongoDB is a JSON-style data store. The documents stored ...
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ConEmu – Windows console emulator with tabs

After switching to Git some time ago, I started working more and more with Git Bash on Windows. Git Bash is pretty cool as it provides (apart from Git) Bash supported with basic Unix ...
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Neo4j: Cypher – Avoiding the Eager

  Although I love how easy Cypher’s LOAD CSV command makes it to get data into Neo4j, it currently breaks the rule of least surprise in the way it eagerly loads in all rows ...
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Akka Notes – Child Actors and ActorPath – 6

Actors are completely hierarchical. Whatever Actors that you create HAS to be a child of some other Actor. Let’s analyze that a bit : Path Say, we create an ActorRef using ActorSystem.actorOf ...
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Why to use String

Recently I was tutoring juniors during a training session. One of the task was to write a class that can dwarwle maps based on some string key. The result one of the juniors created ...
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