Jessica Kerr introduces a different way of thinking about I/O, delaying all side-effects to the end, illustrating manipulating code as data, and at the same time letting data influence the code.
Greg Turnquist demoes using Spring Mail, Security, REST, GridFS, Bootstrap and jQuery in a production grade Grails application.
Ken Kousen presents advanced Groovy features, such as closure coercion, mixins, simple runtime metaprogramming, operator overloading, drop and take, overlooked methods in the Groovy JDK, and more.
Todd Montgomery proposes a new approach to marshalling in Java using FIX/SBE, new marshalling API approaches, and the extensive application of mechanical sympathy to this problem domain.
Joe Rinehart explains how to integrate Twitter Bootstrap into a Grails application.
Ken Kousen advises Java developers how to do similar tasks in Groovy: building and testing applications, accessing both relational and NoSQL databases, accessing web services, and more.
Joe Rinehart discusses some of the essential security topics for Grails (and Java) Web applications, showing how Grails can make life easier and the pitfalls of attempting to secure highly dynamic code.
Brandon Benvie introduces Continuum, what it does, how it works, and why it's useful. Continuum maintains compatibility with all popularly used JS engines in use today (IE8, modern browsers, Node.js).
Martin Thompson discusses Java, concurrency, operating systems, and functional programming in the context of designing and testing high-performance systems.
Ryan Vanderwerf explains setting up Terracotta and clustering an applications using Ehcache, HTTP Session in Tomcat, and Quartz.
Jim Driscoll shows how to create Napili, a small program accepting user scripts to control a turtle using GroovyShell, the Binding, overriding behavior with set/getVariable and invokeMethod, and more.
Venkat Subramaniam shows how to implement several design patterns, including some GoF ones, using Groovy’s dynamic nature and closures.
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