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Non-blocking I/O – discovering Akka
Here comes the time to follow some good practices when implementing actors. One of the most important rules we should follow is avoiding any blocking input/output operations, polling, ...
Two actors – discovering Akka
Hope you are having fun so far, but our application has serious performance defect. After measuring response times of the RandomOrgRandom class we developed in the previous part we ...
Remote actors – discovering Akka
Assume our test application became a huge success and slowly a single server is not capable of handling growing traffic. We are faced with two choices: replacing our server with a better ...
Iteratees for imperative programmers
When I first heard the word iteratee, I thought it was a joke. Turns out, it wasn’t a joke, in fact there are also enumerators (that’s ok) and enumeratees (you’re ...
Benchmarking Scala against Java
A question recently came up at work about benchmarks between Java and Scala. Maybe you came across my blog post because you too are wanting to know which is faster, Java or Scala. Well ...
become/unbecome – discovering Akka
Sometimes our actor needs to react differently based on its internal state. Typically receiving some specific message causes the state transition which, in turns, changes the way subsequent ...
Request and response – discovering Akka
In the previous part we implemented our first actor and sent message to it. Unfortunately actor was incapable of returning any result of processing this message, which rendered him ...
Your first message – discovering Akka
Akka is a platform (framework?) inspired by Erlang, promising easier development of scalable, multi-threaded and safe applications. While in most of the popular languages concurrency ...
Testing Quartz Cron expressions
Declaring complex Cron expressions is still giving me some headaches, especially when some more advanced constructs are used. After all, can you tell when the following trigger will ...
JavaOne 2012: Scala Tricks
The first session I attended after lunch was Venkat Subramaniam‘s ‘Scala Tricks,’ held in the Hilton Golden Gate 3/4/5 conference room area. This is the first session ...
