Spring

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Internal Messaging in Quarkus: Signals, @Receives, and the New Publisher-Subscriber Pattern

Decouple components with Quarkus Signals. Type-safe resolution, @Receives, pub/sub vs unicast vs request-reply, and why Spring has no native equivalent.

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Internal Messaging in Quarkus: Event Bus, ConsumeEvent, and the Publisher-Subscriber Pattern

Decouple components with the Vert.x Event Bus. Pub/Sub vs Point-to-Point, asynchronous consumers with @ConsumeEvent, and why Spring has no native equivalent.

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The Active Record Pattern and Hibernate Reactive: Entities That Save Themselves in Quarkus

Entities that save themselves! Refactor your orders application to the Active Record pattern with PanacheEntity, learn when to choose Repository vs. Active Record, and enter the reactive world with Hibernate Reactive and @WithTransaction.

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Persistence with Panache: From Spring Data JPA to the Repository Pattern in Quarkus

No more in-memory lists! Evolve your orders application with real persistence using Hibernate ORM with Panache in the Repository pattern. Dev Services, pagination, HQL queries and the transition from Spring Data JPA.

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Stop Writing Manual Validations: The Definitive Guide to Bean Validation and DTOs in Quarkus

Ditch the infinite ‘if-else’ blocks! Learn how to ensure data integrity across all layers using Bean Validation 3.1. A complete guide on DTOs, custom rules, method validation, and standalone usage.

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RESTful APIs with Quarkus: Use Jakarta REST and Quarkus REST for Spring Developers

A complete guide for Spring developers on RESTful APIs in Quarkus. Learn about the Jakarta REST specification, the Quarkus REST implementation, and how to build high-performance endpoints.

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Quarkus Dependency Injection: The Ultimate Guide for Spring Developers

Understand how Quarkus reinvented Dependency Injection with ArC: zero runtime reflection, instant startup, and flexible configuration.

How to Start Contributing to Open Source: The Definitive Guide

The digital world runs on Open Source. Discover how to get hands-on and start contributing to the projects that power the planet.

The First Contact and Quarkus Development Mode

A hands-on first contact: building your first API and discovering why Quarkus Dev Mode is a game changer for Spring developers.

The Java Renaissance: From J2EE to Cloud Native with Quarkus

Explore the evolution of Java: from the heavyweight J2EE servers to Quarkus’s subatomic efficiency in a Cloud Native world.