Conference Talks

Devoxx

Functional Programming Patterns with Java8

Victor Rentea live-codes functional patterns and anti-patterns for Java 8, refactoring lambdas and streams into safer, clearer code.

• YouTube
• 50 minutes
• Self-Paced
• Conference Talk

Devoxx

FP vs OOP - Choose Two

Examines why the supposed tension between functional and object-oriented programming is a division programmers invent, not a real conflict.

• YouTube
• 43 minutes
• Self-Paced
• Conference Talk

Devoxx

Write Awesome Tests

Learn to design unit tests around clear, actionable failures, while examining what to test, coverage limits, readability, and common pitfalls.

• YouTube
• 46 minutes
• Self-Paced
• Conference Talk

Devoxx

Event Sourcing - You Are Doing It Wrong

David Schmitz shares hard-won lessons from applying event sourcing and CQRS, including real-world security, compliance, and maintainability challenges.

• YouTube
• 43 minutes
• Self-Paced
• Conference Talk

Devoxx

Majestic Modular Monoliths

A modular monolith offers a third architectural choice between microservices and a big ball of mud, with practical design and implementation guidance.

• YouTube
• 41 minutes
• Self-Paced
• Conference Talk

Devoxx

A Better Approach for Testing Micro Services - Introducing - Test Kits in Practice

Learn to build a microservice test kit that makes service integrations easier to test and reveals where assumptions differ from reality.

• YouTube
• 33 minutes
• Self-Paced
• Conference Talk

Devoxx

Be More Productive With IntelliJ IDEA

A hands-on tour of IntelliJ IDEA features that help developers stay in the flow, from navigation shortcuts and templates to testing and debugging.

• YouTube
• 47 minutes
• Self-Paced
• Conference Talk

Devoxx

Rediscovering JavaScript

Explore how modern JavaScript features make code more concise and fluent, from let and const to spread, classes, and iterators.

• YouTube
• 2 hours 25 minutes
• Self-Paced
• Conference Talk

Devoxx

Lambdas and Streams Master Class Part 2

Practice Java stream techniques by solving coding problems after demonstrations, then comparing solutions in an interactive lecture-lab.

• YouTube
• 2 hours 30 minutes
• Self-Paced
• Conference Talk

Devoxx

Lambdas and Streams Master Class Part 1

Explore how Java 11 lambda patterns shape everyday code through demonstrations, coding exercises, and discussion.

• YouTube
• 2 hours 35 minutes
• Self-Paced
• Conference Talk

Devoxx

Java Streams vs Reactive Streams - Which, When, How, and Why

A live-code comparison of Java Streams and Reactive Streams explains their evaluation models and when each approach suits a problem.

• YouTube
• 2 hours 29 minutes
• Self-Paced
• Conference Talk

Devoxx

Data Streaming for Microservices Using Debezium

See how Debezium streams database changes into other systems, with patterns for synchronizing microservices, maintaining read models, and checking data quality.

• YouTube
• 42 minutes
• Self-Paced
• Conference Talk

Devoxx

The Art of Building Java APIs - Do's and Don'ts

Learn how to build Java APIs that are consistent, documented, and considerate of the developers who use them.

• YouTube
• 48 minutes
• Self-Paced
• Conference Talk

Devoxx

Don't Use Reactive Streams in Java 9+

Learn why Java 9’s Flow interfaces are not an invitation to implement Reactive Streams yourself, and how to use the APIs appropriately.

• YouTube
• 49 minutes
• Self-Paced
• Conference Talk

Devoxx

Do Not Walk Away from Complexity, Run

Explore how software teams can handle difficult domain and business problems without getting trapped in avoidable complexity.

• YouTube
• 57 minutes
• Self-Paced
• Conference Talk