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Extreme Cleverness: Functional Data Structures in Scala
Daniel Spiewak shows how to create immutable data that supports structural sharing, such as: Singly-linked List, Banker’s Queue, 2-3 Finger Tree, Red-Black Tree, Patricia Trie, Bitmapped Vector Trie.
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Grails in the Cloud
Peter Ledbrook outlines the differences between several PaaS providers from the perspective of building, deploying and running a Grails application in the cloud, demoing running it on Cloud Foundry.
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DataMapper on Infinispan: Clustered NoSQL
Lance Ball presents DataMapper, a Ruby ORM library, along with Infinispan, Hibernate Search, Lucene, all running on JBoss AS7 and accessed through TorqueBox, a JRuby application server.
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Clojure and the Web
Glenn Vanderburg discusses how Clojure helps creating web applications, focusing on Ring, Compojure, and how a functional language can be used to generate HTML and XML.
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Clojure: Towards The Essence Of Programming
Howard Lewis Ship talks about Clojure, a language more concise, testable, and readable than Java, letting the developer to focus on his work rather than a verbose syntax.
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Clojure: The Art of Abstraction
Alex Miller presents some of the abstractions that make Clojure a great language: Collections, Sequence and Higher Order Functions, Multimethods, Protocols, Atoms, Macros, and others.
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Introducing the Ceylon Project
Gavin King introduces Ceylon, a prototype language for the Java Virtual Machine which attempts to combine the strengths of Java with the power of higher order functions and declarative programming.
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Perception and Action: An Introduction to Clojure's Time Model
Stuart Halloway discusses how we use a total control time model, proposing a different one that represents the world more accurately helping to solve some of the concurrency and parallelism problems.
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Monads Made Easy
Jim Duey demystifies monads through code examples written in Clojure, explaining what monads are, how they are used and how to write one.
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Code Generation on the JVM: Writing Code that Writes Code
Hamlet D`Arcy demonstrates some of the Groovy tools useful to increase productivity by generating code at compile time: Project Lombok and AST Transforms.
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Groovy for Java Programmers
Jeff Brown introduces Groovy to Java developers, outlining the conciseness and expressivity of the language and covering various topics: GStrings, Closures, collections, builders, beans, etc.
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DSL Evolution for Groovy Developers
Peter Bell explains DSLs, how to approach writing one, and especially how to evolve one over time using "fixing the API", "backwards compatibility", "versioning" and "automated evolution/checking”.
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