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scala-logo

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 ...
scala-logo

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 ...
scala-logo

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 ...
akka-logo

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 ...
akka-logo

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 ...
grails-logo

Grails SQL Logging part 2 – groovy.sql.Sql

I discussed options for logging Hibernate-generated SQL in an earlier post but today I was trying to figure out how to see the SQL from groovy.sql.Sql and didn’t have much luck ...
akka-logo

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 ...
groovy-logo

Grails: Autodiscovery of JPA-annotated domain classes

There are some issues to be fixed with the support for adding JPA annotations (for example @Entity) to Groovy classes in grails-app/domain in 2.0. This is due to the changes made to ...
groovy-logo

Quartz 2: Exploring different scheduling types

We often think of Cron when we want to schedule a job. Cron is very flexible in expressing an repeating occurance of an event/job in a very compact expression. However it’s not ...
scala-logo

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 ...
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