Book Image

Mastering Java EE Development with WildFly

By : Luca Stancapiano
Book Image

Mastering Java EE Development with WildFly

By: Luca Stancapiano

Overview of this book

Packed with rich assets and APIs, Wildfly 10 allows you to create state-of-the-art Java applications. This book will help you take your understanding of Java EE to the next level by creating distributed Java applications using Wildfly. The book begins by showing how to get started with a native installation of WildFly and it ends with a cloud installation. After setting up the development environment, you will implement and work with different WildFly features, such as implementing JavaServer Pages. You will also learn how you can use clustering so that your apps can handle a high volume of data traffic. You will also work with enterprise JavaBeans, solve issues related to failover, and implement Java Message Service integration. Moving ahead, you will be working with Java Naming and Directory Interface, Java Transaction API, and use ActiveMQ for message relay and message querying. This book will also show you how you can use your existing backend JavaScript code in your application. By the end of the book, you’ll have gained the knowledge to implement the latest Wildfly features in your Java applications.

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Table of Contents (20 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
Introducing Java EE and Configuring the Development Environment
Introducing Java EE and Configuring the Development Environment
JSON and HTML5
WebSockets
Simplified JMS 2.0 API
Groundwork for Cloud environments
Batch applications
Updated web profiles
Concurrency utilities
Context dependency injection
Java API for RESTful web services (JAX-RS) 2.0
Servlet 3.1
JNDI
Asynchronous invocation
Timers
EJB Lite
Development in WildFly
Summary
2
Working with Dependency Injection
Working with Dependency Injection
Dependency injection 1.0 for Java
Context and dependency injection 1.1 for Java
Interceptors 1.2
Common annotations for the Java platform 1.2
Web console for monitoring beans
Summary
3
Persistence
Persistence
Common JPA annotations
DataSources and connectors
Summary
4
Implementing Business Logic
Implementing Business Logic
Scopes in EJB
Transactions
Security
EJB container configuration
Summary
5
Working with Distributed Transactions
Working with Distributed Transactions
Transaction overview
Summary
6
Creating REST Services
Creating REST Services
Services
REST and HTTP
REST application and components
Forms and beans
Summary
7
Implementing WebSockets
Implementing WebSockets
History of the web
Implementation engine
WebSocket session
Ajax versus WebSockets
Summary
8
Working with Messaging
Working with Messaging
Queues and topics
Remote clients
Message listeners
The JMS context
Summary
9
Implementing a Mail Client
Implementing a Mail Client
Mail client API
Configuration of the mail server
Summary
10
Asynchronous REST
Asynchronous REST
Asynchronous resources
REST timeouts
REST server callbacks
Asynchronous clients
Summary
11
Asynchronous EJB
Asynchronous EJB
The asynchronous annotation
Timers and schedulers
Message driven beans
Summary
12
Batches and Workflows
Batches and Workflows
Workflows and BPM
Batch models
Job context and step context
Metrics and step execution
Listeners
Exceptions
Monitoring of the batches
Deploying the workflows
Summary
13
Working with Servlets and JSP
Working with Servlets and JSP
Undertow
Servlets and web components
Cookies
Error mappings
File upload
Filters
Event listeners
Asynchronous servlet
Protocol handler
Dynamic context registration
External resources and themes
Web fragments
Security
Summary
14
Writing a JSF Application
Writing a JSF Application
MVC
Configuring and developing your application
Working with Facelets
Security
Summary
15
Sharing the Web Sessions
Sharing the Web Sessions
Clustering
Infinispan
Cluster domains
Summary
16
WildFly in Cloud
WildFly in Cloud
OpenShift
Summary
17
Share your Data
Share your Data
Infinispan and the cluster
JGroups configuration
Singleton HA Services
Summary
18
Deployment
Deployment
Deployment types
Deployment tools
Summary
19
Working with OSGi
Working with OSGi
Modules
OSGi in WildFly
Summary

Infinispan

The clustering in WildFly 10 is managed by Infinispan 8.2.4. This project was born in the JBoss community; when it started, it was called JBoss Cache. JBoss Cache/Infinispan has been the cluster library of the JBoss application server since the JBoss 4.x version.

Infinispan is a distributed cache project. It is based on an internal memory in which we can put some kind of data so that it can be distributed in a wide net of nodes where Infinispan is installed and configured.

By default, Infinispan connects all nodes in the same subnet in one group of data. The same achievement happens in WildFly. As an example, we can try to start WildFly 10 in different nodes using the standalone.sh command, deploy a web application, and monitor what happens.

The standalone.sh file in the bin directory of WildFly allows us to choose a starting configuration. We will start an initial...

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