Enterprise Java

Skip the noise that can come with developing apps, and instead focus on building apps.

After giving a quick introduction to Kogito, Maciej Swiderski will explain how it can be used to build cloud-ready, event-driven business applications. This will be followed with a demonstration of how Quarkus (with its hot reload capabilities) can be used to create microservices implementing the business logic of a complex domain with rules and modeling its workflows through business processes integrated with Kafka to consume and produce business events.

What is enterprise Java programming?

Enterprise Java is the use of Java for application development in enterprise-scale software, and merges a collection of APIs and application servers that implement those APIs. Enterprise Java also includes related technologies, such as the Spring Framework.  

Enterprise Java Beans (EJB), Java Message Service (JMS), Java Persistence API (JPA), Java Transaction API (JTA), and Java Server Faces (JSF) make up the collection of modular tools that enable enterprise needs, such as distributed computing utilizing containers, web services, and high performance applications. 

Enterprises use Java today to build applications utilizing microservices rather than taking a monolithic approach. Enterprise Java is used across government, telecom, banking information systems, accounting, and e-commerce.

Get started with Quarkus

Course

Developing with Quarkus

5 lessons | 70 minutes

Learn Quarkus, a Kubernetes-native Java stack tailored for GraalVM & OpenJDK HotSpot. Stand up an application with a hello endpoint, then get familiar with Hibernate ORM via Panache, a Quarkus component.

Lesson

Getting started with Quarkus

10 minutes | Beginner

Learn Quarkus basics by standing up a straightforward application serving a hello endpoint.

Lesson

Effective data with Hibernate and Panache from Quarkus

15 minutes | Beginner

Learn about Quarkus and Hibernate ORM with Panache to create supersonic, subatomic Java applications with simplified Hibernate queries.

Lesson

Reactive streaming with Quarkus and Kafka

15 minutes | Beginner

Build a streaming application using MicroProfile reactive streams messaging and Apache Kafka, a distributed streaming platform.

Microservices for Java Developers book cover

Free book: Microservices for Java Developers

The microservice architectural approach lets you build complex systems to adapt to rapidly changing competitive markets. Now in its second edition, this step-by-step guide introduces concepts such as immutable delivery, and gets you started building distributed systems for managing microservices using Linux containers, Kubernetes, and three different Java frameworks: Spring BootDropwizard, and WildFly Swarm (WildFly Swarm was renamed Thorntail in 2018).

 

Learn how to:

  • Expose a service.
  • Configure at runtime.
  • Expose metrics and insight.
  • Call downstream services in a safe manner.

 

Download free book

Building Reactive Microservices in Java

Free book: Building Reactive Microservices in Java

Eclipse Vert.x is a toolkit that helps developers build reactive applications to run within the Java Virtual Machine. Whether you want to get rid of your monolithic enterprise applications, or avoid creating new ones, Eclipse Vert.x is worth investigating. Learn how to use reactive design to create distributed, reactive microservices within this framework. 

 

This book explains how to:

  • Explore the elements of reactive microservices and learn how Vert.x works.
  • Build and consume a single microservice to understand how messaging improves its reactiveness.
  • Create an entire microservices system, using stability and resilience patterns to manage failures.
  • Use the OpenShift container platform to deploy and manage microservices in a virtual or cloud environment.

 

Download free book

Edson Yanaga explains what’s new in the updated Effective Java and shares more tips not included in the book.

In this tutorial, Burr Sutter demonstrates how to optimize your enterprise Java apps, your APIs, your microservices, and your “serverless functions” for a Kubernetes/OpenShift environment—vastly smaller, vastly faster, and fundamentally more scalable.

Enterprise Java articles

WildFly server configuration with Ansible collection for JCliff, Part 2

WildFly server configuration with Ansible collection for JCliff, Part 2

December 3, 2020

Welcome to the second part of this series introducing Ansible collection for JCliff. This new extension is designed for fine-tuning WildFly or Red Hat JBoss Enterprise Application Platform (JBoss EAP) configurations using Ansible. In Part 1, we installed JCliff and its Ansible collection and prepared our environment. We set up a minimal, working playbook for […]

Open Liberty 20.0.0.12 brings support for gRPC, custom JNDI names, and Java SE 15

Open Liberty 20.0.0.12 brings support for gRPC, custom JNDI names, and Java SE 15

December 2, 2020

Open Liberty 20.0.0.12 now supports gRPC 1.0 and gRPC Client 1.0. This universal, open source framework is an efficient way to connect remote services across data centers. We’ve also added custom names support for the Java Naming and Directory Interface (JNDI), making it easier to look up and inject Jakarta Enterprise Beans (EJBs) in your […]

Using IntelliJ Community Edition in Red Hat CodeReady Workspaces 2.5

Using IntelliJ Community Edition in Red Hat CodeReady Workspaces 2.5

December 1, 2020

Red Hat CodeReady Workspaces (CRW) provides a default browser-based IDE to be used with developer workspaces. However, the architecture is flexible for using other IDEs such as Jupyter Notebooks and Eclipse Dirigible. In this article, you will learn how to create a custom workspace using the community edition of IntelliJ IDEA. Note: You can also […]

Cloud-native modernization or death? A false dichotomy

Cloud-native modernization or death? A false dichotomy

November 30, 2020

DevNation Tech Talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions plus code and sample projects to help you get started. In this talk, you’ll learn about cloud-native modernization from Daniel Oh and Burr Sutter. Are you familiar with the tight coupling of applications with their underlying […]

Orchestrate event-driven, distributed services with Serverless Workflow and Kubernetes

Orchestrate event-driven, distributed services with Serverless Workflow and Kubernetes

November 26, 2020

Serverless workflows have gained renewed interest and usefulness with the rise of serverless architectures. Once seen as centralized and monolithic, they now play a key role in cloud-based event and service orchestration. Until recently, there was no vendor-neutral way to describe service orchestration, so developers were dependent on vendors and vendor implementations. We realized that […]

Authentication and authorization using the Keycloak REST API

Authentication and authorization using the Keycloak REST API

November 24, 2020

Enabling authentication and authorization involves complex functionality beyond a simple login API. In a previous article, I described the Keycloak REST login API endpoint, which only handles some authentication tasks. In this article, I describe how to enable other aspects of authentication and authorization by using Keycloak REST API functionality out of the box.

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Quarkus

A cloud-native, container-first stack for creating Java applications tailored for GraalVM + HotSpot, crafted from Java libraries and standards.