Book Image

Java EE 8 Development with Eclipse - Third Edition

By : Ram Kulkarni
Book Image

Java EE 8 Development with Eclipse - Third Edition

By: Ram Kulkarni

Overview of this book

Java EE is one of the most popular tools for enterprise application design and development. With recent changes to Java EE 8 specifications, Java EE application development has become a lot simpler with the new specifications, some of which compete with the existing specifications. This guide provides a complete overview of developing highly performant, robust and secure enterprise applications with Java EE with Eclipse. The book begins by exploring different Java EE technologies and how to use them (JSP, JSF, JPA, JDBC, EJB, and more), along with suitable technologies for different scenarios. You will learn how to set up the development environment for Java EE applications and understand Java EE specifications in detail, with an emphasis on examples. The book takes you through deployment of an application in Tomcat, GlassFish Servers, and also in the cloud. It goes beyond the basics and covers topics like debugging, testing, deployment, and securing your Java EE applications. You'll also get to know techniques to develop cloud-ready microservices in Java EE.

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Table of Contents (20 chapters)
Title Page
Title Page
Copyright and Credits
Copyright and Credits
Dedication
Dedication
Packt Upsell
Packt Upsell
Free Chapter
1
Introducing JEE and Eclipse
Introducing JEE and Eclipse
JEE
Installing products
Summary
2
Creating a Simple JEE Web Application
Creating a Simple JEE Web Application
Configuring Tomcat in Eclipse
JavaServer Pages
Java Servlet
Creating WAR
JavaServer Faces
Using Maven for project management
Summary
3
Source Control Management in Eclipse
Source Control Management in Eclipse
The Eclipse subversion plugin
Eclipse Git plugin
Summary
4
Creating JEE Database Applications
Creating JEE Database Applications
Creating database schema
Creating a database application using JDBC
Creating database applications using JPA
Summary
5
Unit Testing
Unit Testing
Introducing JUnit
Creating and executing unit tests using Eclipse JEE
Mocking external dependencies for unit tests
Calculating unit test coverage
Summary
6
Debugging the JEE Application
Debugging the JEE Application
Debugging a remote Java application
Debugging a web application using Tomcat in Eclipse EE
Debugging an application in an externally configured Tomcat
Using the debugger to know the status of program execution
Summary
7
Creating JEE Applications with EJB
Creating JEE Applications with EJB
Types of EJB
Configuring the GlassFish Server in Eclipse
Creating a Course Management application using EJB
Creating a JEE project using Maven
Summary
8
Creating Web Applications with Spring MVC
Creating Web Applications with Spring MVC
Dependency injection
Dependency injection in Spring
Installing Spring Tool Suite
Creating a Spring MVC application
Summary
9
Creating Web Services
Creating Web Services
What is a web service?
JAXB
JSON-B
RESTful web services
SOAP web services
Summary
10
Asynchronous Programming with JMS
Asynchronous Programming with JMS
Steps to send and receive messages using JMS
Creating queues and topics in GlassFish
Creating JEE project for a JMS application
Creating JMS application using JSP and JSP bean
Creating JMS application using JSF and CDI beans
Consuming JMS messages using MDBs
Summary
11
Java CPU Profiling and Memory Tracking
Java CPU Profiling and Memory Tracking
Creating a sample Java project for profiling
Profiling the Java application
Eclipse plugins for profiling memory
Summary
12
Microservices
Microservices
What is a microservice?
Eclipse MicroProfile
Setting up a database for a microservice project
Implementing microservices using WildFly Swarm
Implementing microservices using Spring Boot
Deploying microservices in a Docker container
Running containers using Docker Compose
Summary
13
Deploying JEE Applications in the Cloud
Deploying JEE Applications in the Cloud
Deploying in the cloud
Deploying in AWS Cloud
Deploying in Google Cloud
Summary
14
Securing JEE Applications
Securing JEE Applications
Authentication and authorization in JEE
Modifying a database to save authentication information
Securing applications in GlassFish
Securing applications in Tomcat
Securing servlets using annotations
Securing web services
Security enhancements in JEE 8
Summary
Other Books You May Enjoy
Other Books You May Enjoy
Leave a review - let other readers know what you think
Index
Index

Types of EJB

EJB can be of the following types according to the EJB3 specification:

  • Session bean:
    • Stateful session bean
    • Stateless session bean
    • Singleton session bean
  • Message-driven bean

We will discuss message-driven bean (MDB) in detail in a Chapter 10, Asynchronous Programming with JMS, when we learn about asynchronous processing of requests in the JEE application. In this chapter, we will focus on session beans.

Session beans

In general, session beans are meant to contain methods to execute the main business logic of the enterprise application. Any Plain Old Java Object (POJO) can be annotated with the appropriate EJB3-specific annotations to make it a session bean. Session beans come in three types.

Stateful session beans

One stateful session bean serves requests for one client only. There is one-to-one mapping between the stateful session bean and the client. Therefore, stateful beans can hold the state data for the client between multiple method calls. In our Course Management application, we...

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