InfoQ Homepage Java Content on InfoQ
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Angular 2 and TypeScript - A High Level Overview
AngularJS has become the world's most popular JavaScript framework for creating web applications. And now Angular 2 and TypeScript have brought true object oriented web development to the mainstream, using a syntax that is strikingly close to Java 8. In this article we provide a high-level overview of the Angular 2 framework.
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High Load Trading Transaction Processing with Reveno CQRS/Event Sourcing Framework
Reveno is a powerful new, easy to use, highly performant, JVM based lock-free transaction processing framework based on CQRS and event-sourcing patterns. In this article we will develop a simple trading system implementation using the Reveno framework.
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Invokedynamic - Java’s Secret Weapon
invokedynamic was the first new Java bytecode since Java 1.0 and was crucial in implementing the "headline" features of Java 8 (such as lambdas and default methods). In this article, we take a deep dive into invokedynamic and explain why it is such a powerful tool for the Java platform and for JVM languages such as JRuby and Nashorn.
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Beyond Page Objects: Next Generation Test Automation with Serenity and the Screenplay Pattern
Automated acceptance testing reduces time wasted in manual testing and bug fixing, and when combined with Behaviour-Driven Development, can guide development effort. But it requires skill, practice and discipline. The Screenplay Pattern helps teams address these difficulties and is where you may end up by mercilessly refactoring Page Objects using SOLID design principles.
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Book Review: All About Java 8 Lambdas
Billed as a Weekend Read, the All About Java 8 Lambdas book covers much more than just lambdas; it covers default and static methods in interfaces, method references, optional values and primitive/object streams. It’s the book to read if you know Java and need to get up to speed on Java 8. Read on for InfoQ’s review.
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Automate Deployment & Management of Docker Cloud/Virtual Java Microservices with DCHQ
This article demonstrates a solution for automating the build, deployment and management of a Docker Java microservices application on any cloud or virtualization platform. We extend an existing money transfer application consisting of event sourcing, CQRS and Docker, to run and manage this app on 13 different clouds and virtualization platforms.
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Clojure in Action, Second Edition, Review and Authors Q&A
Clojure in Action, written by Amit Rahore and Francis Avila, is an essential, thorough, and well organized introduction to Clojure 1.6 that explores the core parts of the language while introducing the reader to Clojure's pragmatic and idiomatic nature. InfoQ has spoken with Francis Avila to learn more about his book, Clojure's advantages, and its future.
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Diagnosing Common Database Performance Hotspots in our Java Code
Java performance issues are often attributable to bad database access patterns. In this article a top performance field engineer demonstrates his patterns for diagnosing database related issues.
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IAP: Fast, Versatile Alternative to HTTP
Jakob Jenkov's organization has analyzed the modern application stack, including high level architectures, concrete technologies like databases, query languages, messaging, distributed computing models, & network protocols, and constructed the next gen alternative to HTTP. IAP is the resulting emerging standard protocol, and ION the high speed alternative to JSON and Protocol Buffers.
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Clojure Recipes Review and Q&A
Addison Wesley’s Clojure Recipes is a new book that aims to help developers to get deeper into Clojure, moving from a generic understanding of the language features and syntax to setting up more complex projects that integrate external libraries. The book contains a collection of "weekend" projects targeting web client and server apps, implementing DSLs, using Datomic, Cascalog, Hadoop, etc.
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Programming with Modularity and Project Jigsaw. A Tutorial Using the Latest Early Access Build
Project Jigsaw is the hallmark feature of Java 9, the next major version release of Java, and is destined to bring modular programming into the Java mainstream. After years of negotiating and myriad JSRs and JEPs, Jigsaw is starting to take its final form. This tutorial considers all aspects of programming and migration to Project Jigsaw.
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OCP Oracle Certified Professional Java SE 8 Programmer Study Guide II-Review and Author Conversation
The Oracle Java Certification exams are very difficult tests on every feature of Java, and obtaining certification gives hiring managers a very strong indication that you have a thorough understanding of Java. This handbook is a clear and complete exam preparation, and indeed a great pedal to the metal way to learn Java 8 even for those who may not be planning to become certified.