About Adam Warski
Adam is one of the co-founders of SoftwareMill, a company specialising in delivering customised software solutions. He is also involved in open-source projects, as a founder, lead developer or contributor to: Hibernate Envers, a Hibernate core module, which provides entity versioning/auditing capabilities; ElasticMQ, an SQS-compatible messaging server written in Scala; Veripacks, a tool to specify and verify inter-package dependencies, and others.
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How to replace a build module with Veripacks
Compare the two trees below. In both cases the goal is to have an application with two independent modules (frontend and reporting), and one shared/common module (domain). The code ...
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 ...
Dry parameter names
How often do you see code like this, especially when using dependency injection, single-responsibility principle, and other “good practices”? class ...
Starting with Scala Macros: a short tutorial
Using some time during the weekend, I decided to finally explore one the new features in the coming Scala 2.10, macros. Macros are also written in Scala so in essence a macro is a ...
Event streaming with MongoDB
MongoDB is a really great “NoSQL” database, with a very wide range of applications. In one project that we are developing at SoftwareMill, we used it as a replicated event storage, ...
Let’s turn packages into a module system!
Many projects are divided into modules/subprojects using the build system (Maven, Gradle, SBT …); and writing modular code is generally a Good Thing. Dividing the code into build ...
Trying to understand CAP
The CAP theorem, stated by Brewer and proved by Gilbert and Lynch specifies a property of distributed systems. It states that such a system cannot guarantee at the same time Consistency, ...
Scala: Missing OO and FP bridge
Scala blends functional and object-oriented programming in many nice ways. You can use both FP an OO-like constructs whichever fits the current problem better. But there’s always ...
Generational caching and Envers
Konrad recently shared on our company’s technical room an interesting article on how caching is done is a big polish social network, nk.pl. One of the central concepts in the algorithm ...
ElasticMQ message replication with JGroups
ElasticMQ is a messaging server, with a Scala, Java, and an Amazon SQS-compatible interface. It supports guaranteed messaging by replicating the messages across a cluster of servers, ...
