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Streams Library Brings Lazy Evaluation and Functional-style to C++14

by Sergio De Simone on  Jul 17, 2014

Streams is a C++14 library that provides lazy evaluation and functional-style transformations on the data, to ease the use of C++ standard library containers and algorithms. Streams support many common functional operations such as map, filter, and reduce. InfoQ interviews Streams' author.

rest: Open Source REST Framework For Haskell

by Roopesh Shenoy on  Jul 07, 2014

Silk has recently open-sourced a REST framework for Haskell, called "rest". It provides a DSL for defining REST services which can then be run in popular web frameworks such as happstack. This comes with features such as type-safe URLs, abstraction of format-type support, and a clean separation of API specification and business logic.

Facebook Open-sources Haxl: Implicit, Concurrent Data Access Using Haskell

by Roopesh Shenoy on  Jun 11, 2014

Facebook has open-sourced Haxl, a library for efficient, concurrent data-access. The library leverages the traditional strengths of Haskell such as expressive type system, correctness and safety guarantees, as well as GHC's high performance run-time to solve the thorny issue of implicit, concurrent data access.

Play 2.3 Released: Modularization, Java 8 and WebJars

by Mirko Stocker on  May 31, 2014

The Play 2.3 release increases modularization of the framework by separating parts from the framework. Also, the Play shell has been replaced by Activator, which includes a browser UI and project templates. InfoQ also talked to Play tech lead James Roper to learn more about the changes and futures plans.

Functional Patterns in Domain-Driven Design

by Jan Stenberg on  May 31, 2014

Implementing Domain-Driven Design (DDD) concepts using object orientation principles with state and behaviour often gives you a muddled mutable model, instead building domain objects with only state and behaviour as standalone functions leads to a better realization, Debasish Ghosh claims in a recent blog post.

Scala 2.11: The Latest Major Scala Release

by Bienvenido David on  May 06, 2014

Typesafe has recently announced the release of Scala 2.11 under the standard 3-clause BSD license. This is a major release which includes improvements in scalac, the REPL, packaging/modularization, macros, the Collections library, and various bug fixes. Scala 2.11 targets Java 6, with only limited, experimental support for Java 8. Scala 2.11 is not binary compatible with the 2.10 series.

Groovy 2.3 Released With Traits and Java 8 Support

by Victor Grazi on  May 06, 2014

Groovy Project Manager at Pivotal Guillaume Laforge today announced the release of Groovy 2.3, the first major Groovy release this year, and the first major release of Groovy to feature official support for running on the recently released Java 8.

Reactive Streams with Akka Streams

by Bienvenido David on  Apr 21, 2014

Typesafe has announced the early preview of Akka Streams, an open source implementation of the Reactive Streams draft specification using an Actor-based implementation. Reactive Streams is an initiative to provide a standard for asynchronous stream processing with non-blocking back pressure on the JVM. Back pressure in needed to make sure the data producer doesn't overwhelm the data consumer.

Haskell Gets iOS Support, Several language and Performance Improvements

by Roopesh Shenoy on  Apr 16, 2014

GHC 7.8.1 was recently released, bringing several language, compiler and performance improvements. Haskell can now be compiled for iOS, and sports new features such as Closed Type Families, Roles, Overloaded Lists, Pattern Synonyms.

DDD and CQRS Using the Functional Language F#

by Jan Stenberg on  Mar 31, 2014

A focus on behaviour and a more declarative style of code are two benefits for Domain-Driven Design (DDD) when moving from an object-oriented language like C# to a functional one like F#, Lev Gorodinski claims in a recent presentation, using an example that includes event sourcing and Command-Query Responsibility Separation (CQRS) to show some of the benefits and challenges in a move to F#.

Rebecca Parsons on the ThoughtWorks Technology Radar

by Shane Hastie on  Mar 28, 2014 3

In January ThoughtWorks released the latest version of their Technology Radar in which they track what's interesting in the software development ecosystem. The big themes this year are (1) early warning systems and recovery in production, (2) the tension between privacy and big data, (3) the javascript ecosystem and (4) blurring of the line between the physical and virtual worlds.

Domain-Driven Design Using a Functional Language

by Jan Stenberg on  Mar 25, 2014 1

Using a functional language in domain-driven design (DDD) the actual code can often become simple enough to be used instead of UML diagrams when discussing with domain experts, Scott Wlaschin stated in a recent talk about domain modelling together with functional programming using F#.

Object Oriented Design Principles and Functional Programming

by Jan Stenberg on  Mar 20, 2014

Independently from each other, Richard Warburton in a presentation, and Mark Seemann in a blog post both talks about object-orientation and the SOLID design principles from a functional programming perspective.

Akka Toolkit 2.3 with Java 8 and Persistence Support

by Jan Stenberg on  Mar 11, 2014

Latest version of the Akka toolkit, an implementation of Actor Model, comes with persistence enabling stateful actors to persist their internal state, together with support for Java 8 lambda expressions.

Elm 0.11 Improves JavaScript Interop

by Tom Coupland on  Mar 10, 2014

Elm’s recent 0.11 release aims to simplify using the FRP language in combination with Javascript.

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