Devoxx Courses

A Pragmatist’s Guide to Functional Geekery

Explore advanced functional programming concepts like pattern matching and type classes, with practical examples in JVM languages to improve code maintainability and safety.

• YouTube
• 43 minutes
• On-Demand
• Conference Talk

Data Visualization with R

Learn to create impactful data visualizations using R and RStudio. Explore R's capabilities for transforming data into actionable insights through hands-on demonstrations and expert guidance.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk

Services Assemble

Learn proven patterns and open source tools for building robust microservices, covering configuration, discovery, circuit breakers, load balancing, messaging, security, and more. Gain insights from Netflix's approach to global streaming.

• YouTube
• 53 minutes
• On-Demand
• Conference Talk

The End of Polling - Why and How to Transform a REST API into a Data Streaming API

Explore real-time data streaming technologies like WebSockets and Server-Sent Events. Learn to transform static APIs into dynamic streams, optimize data transfer, and apply streaming to innovative use cases like drone control.

• YouTube
• 50 minutes
• On-Demand
• Conference Talk

JVM Toolbox 2017 - Live Coding

Live coding session exploring JVM languages for efficient task handling, including Java 9, Scala, Groovy, and ECMAScript. Demonstrates specialized language use for mathematical expressions, text templates, collections, and JSON processing.

• YouTube
• 55 minutes
• On-Demand
• Conference Talk

I Have a NoSQL Toaster

Explore key-value, document, columnar, and graph data models in NoSQL databases, understanding their differences and ideal use cases for modern data management.

• YouTube
• 47 minutes
• On-Demand
• Conference Talk

Busy Developer's Guide to Building Languages

Explore language creation from concept to implementation, covering key decisions, grammar definition, parsing, and code generation. Learn tools and techniques for building custom languages efficiently.

• YouTube
• 56 minutes
• On-Demand
• Conference Talk

Rethinking Microservices with Stateful Streams

Explore stateful stream processing for building event-driven services using Apache Kafka, balancing data accessibility and service encapsulation for improved scalability in microservices architecture.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Image Optimization - The "How To"

Explore image formats, their strengths and weaknesses, and learn effective optimization techniques for web and app development. Gain insights on automating the process for better performance.

• YouTube
• 21 minutes
• On-Demand
• Conference Talk

Using FlameGraphs to Illuminate the JVM

Explore FlameGraphs for JVM profiling, combining Linux perf and JDK options to visualize execution profiles across OS, JVM, and Java code. Learn advanced usage and insights into performance optimization.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk

The Art of Discovering Bounded Contexts

Explore advanced domain-driven design techniques for identifying bounded contexts, designing microservices, and improving organizational alignment in complex systems.

• YouTube
• 42 minutes
• On-Demand
• Conference Talk

Transactional Actors with Eclipse Vert.x

Explore integrating transactional actor model with Eclipse Vert.x using Narayana transactions and Software Transactional Memory for asynchronous, event-driven applications with volatile, persistent, and nested transactions.

• YouTube
• 55 minutes
• On-Demand
• Conference Talk

Git Workflow Strategies for Technical Debt Management

Explore Git workflow strategies to incrementally reduce technical debt, focusing on measurement, backlog management, and continuous inspection for improved code quality.

• YouTube
• 36 minutes
• On-Demand
• Conference Talk

Using Java 8 Lambdas and StampedLock to Manage Thread Safety

Explore StampedLock for thread safety in Java 8, covering optimistic reads, atomic references, and lock-free solutions. Learn practical idioms and Lambda applications for efficient concurrent programming.

• YouTube
• 51 minutes
• On-Demand
• Conference Talk

Turbo Charge CPU Utilization in Fork - Join Using the ManagedBlocker

Optimize Fork/Join CPU usage with ManagedBlocker: Learn to implement reserved caching, reduce wasted cycles, and maintain parallelism in recursive decomposition algorithms.

• YouTube
• 52 minutes
• On-Demand
• Conference Talk