Subscriptions include a calendar year of issues (March - December) regardless of when you subscribe. When ordering after March, your subscription includes access to the previous issues of the current year. Each month, you will receive an email with a link to download the magazine PDF and associated code samples.
Clojure 1.2 (and partly 1.3) introduced protocols and records. These new constructs give us the ability to define not only new “types” in Clojure but also contracts, much like Java classes and interfaces. In this article we will take a look at what these new constructs mean and how to use them. We will also attempt to find out the reasoning behind these new constructs and how they differ from earlier constructs such as proxy and gen-class.
Today's applications don't exist in a vacuum. They are distributed, portable, mobile, integrated, social, there's no reason an application can't go with you. We've seen the transformation that the rise of smart phones and tablets has had on our lives. What's powering this transformation? How are these systems communicating? They're certainly not using SOAP. Or CORBA. Most of them are using REST.
Shared mutability makes programming concurrency quite difficult. Mutual exclusion of access to mutable variables, through synchronization, is one way to deal with it. Programmers have endured this for years and clearly know the perils of this approach. Software Transactional Memory (STM) is a practical alternative solution. Unlike the most common recommendation we hear---avoid shared mutability---STM approaches the problem from the opposite direction. It invites shared mutability, but with a twist, by actively managing concurrent access. In this article we will learn about STM and how it solves the issues of concurrency. We will understand its benefits and limitations. We will first look at examples using Clojure and then take a look at using STM from Java.
First, let me take this opportunity to thank you for your continued support of No Fluff Just Stuff. The emphasis of this magazine is all about quality content just like our software conference series. For those of you not familiar with the No Fluff Just Stuff Symposium series let me share a little history. I started NFJS in 2002 to offer high quality technical content in a conference format and offered in over 30 cities throughout the U.S. and Canada. The credo of NFJS is simply: Local Venue, World Class Conference. NFJS offers individuals the opportunity to attend an outstanding conference right in your own backyard whether you live in Milwaukee, or Denver, just to name a few. The NFJS conference series is focused on great technical content(stuff) and little to no fluff - advertising, vendors, etc...
NFJS, the Magazine is an eclectic mix of articles centered on software development and all that entails. Whether you are a developer, architect or manager, you should find all of the articles in NFJS interesting and enlightening. All of the article authors are speakers on the No Fluff Just Stuff Tour and published thereby insuring a great read. We want this magazine to be time efficient for the reader. To me, NFJS the Magazine is all about outstanding content that is easily consumable. The other great thing about the format of this magazine is that you can easily read articles out of sequence over the months and refer back to something anytime. Unlike traditional magazines, NFJS has a much longer shelf life and makes a great reference source.
We are very excited to bring you NFJS, the Magazine ten times a year. I hope you find NFJS, the Magazine to be a great informational resource. Drop me an email and let me know your thoughts.