Actors in Scala. Philipp Haller, Frank Sommers

Actors in Scala


Actors.in.Scala.pdf
ISBN: 0981531652,9780981531656 | 139 pages | 4 Mb


Download Actors in Scala



Actors in Scala Philipp Haller, Frank Sommers
Publisher: Artima Inc




Akka is a library for building concurrent scalable applications using the Actor Model. The Scala language is a JVM based language that offers many cool features, including functional programming and particularly concurrency "made easy". So when I needed an irc bot to read RSS feeds recently, it seemed like a good excuse to play. PartialFunction[Any, Unit]) and this function can be dynamically changed at runtime. Natalino Busa 3:57 PM actor model, akka, functional programming, haskel, lambda calculus, lenses, object oriented, OO, process calculus, scala, trampolines, typesafe. Scala 2.8 Remote Actors in Scala 2.7.7-final. Here is how I'm using Scala actors in the Simple Twitter Client to fetch user photo thumbnails. Among the many native Scala libraries we have tried and adopted, Akka stands out as the most indispensable. The Actor model has been implemented in the standard Scala library by Philipp Haller (for the interested reader, a solid reference is for instance this article explaining how actors in Scala work). But I promised to talk about scala.util.DynamicVariable in the blog post's title, didn't I? Actors in Scala are just objects. Threads are still a complex topic to get right in Java due do -racing conditions -dead locks -shared state. I'm assuming (maybe incorrectly) that most of the Actors that will be written will simply want to react to messages, forever. To be as complete as I can be in this section I should also note that Scala treats everything as an object, even though it has these two types of actors. Scala: a multiparadigm programming language. I've been wanting to play with scala for a while. I've been experimenting with traits, multiple inheritance (mixins), and Actors in Scala and I've found it difficult to merge all 3 aspects of the language. Akka actors' receive method accepts a partial function from Any to Unit(i.e. After a lot of heavy use of the remote actors libraries in Scala, I noticed that something seemed to be leaking memory. Recent trends in computer architecture make concurrency and parallelism an essential ingredient of efficient program execution. Modern traits in laptop architecture make concurrency and parallelism an vital component of efficient plan performance.

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