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

How the fabric8 Maven plug-in deploys Java applications to OpenShift

How the fabric8 Maven plug-in deploys Java applications to OpenShift

June 2, 2020

The fabric8 Maven plug-in, often abbreviated FMP, can be added to a Maven Java project and takes care of the administrative tasks involved in deploying the application to a Red Hat OpenShift cluster. These tasks include: Creating an OpenShift build configuration (BC). Coordinating the source-to-image (S2I) process to create a container image from the application’s […]

Quarkus, a Kubernetes-native Java runtime, now fully supported by Red Hat

Quarkus, a Kubernetes-native Java runtime, now fully supported by Red Hat

May 28, 2020

Java was introduced 25 years ago, and to this day, remains one of the most popular programming languages among developers. However, Java has developed a reputation for not being a good fit for cloud-native applications. Developers look for (and often choose) alternative frameworks such as Go and Node.js to support their cloud-native development requirements. Why […]

Red Hat build of Eclipse Vert.x 3.9 brings Fluent API Query

Red Hat build of Eclipse Vert.x 3.9 brings Fluent API Query

May 25, 2020

Red Hat Runtimes provides a set of comprehensive frameworks, runtimes, and programming languages for developers, architects, and IT leaders with cloud-native application development needs. The latest update to Red Hat Runtimes has arrived with Red Hat’s build of Eclipse Vert.x version 3.9. Red Hat Runtimes provides application developers with a variety of application runtimes and […]

Getting started with the fabric8 Kubernetes Java client

Getting started with the fabric8 Kubernetes Java client

May 20, 2020

Fabric8 has been available as a Java client for Kubernetes since 2015, and today is one of the most popular client libraries for Kubernetes. (The most popular is client-go, which is the client library for the Go programming language on Kubernetes.) In recent years, fabric8 has evolved from a Java client for the Kubernetes REST […]

Play with Kogito examples

Play with Kogito examples

May 14, 2020

Kogito 0.9.1 has been released, bringing refined business automation documentation and examples. It’s not yet 1.0, but 0.9.1 is a well-prepared milestone release. In this article, I introduce kogito-examples to help you experience what Kogito is like. First, clone the repo: $ git clone https://github.com/kiegroup/kogito-examples.git $ cd kogito-examples Note: The default branch is “stable,” which […]

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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.