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Java EE 8 Cookbook
Java EE 8 Cookbook

Java EE 8 Cookbook: Build reliable applications with the most robust and mature technology for enterprise development

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Java EE 8 Cookbook

Server-Side Development

Java EE can be seen as being made for server-side development. Most of the APIs are powerful for server-side processing and managing.

This chapter will provide you with some common and useful scenarios that you may face as a Java EE developer and will show you how you should deal with them.

In this chapter, we will cover the following recipes:

  • Using CDI to inject context and dependency
  • Using Bean Validation for data validation
  • Using servlet for request and response management
  • Using Server Push to make objects available beforehand
  • Using EJB and JTA for transaction management
  • Using EJB to deal with concurrency
  • Using JPA for smart data persistence
  • Using EJB and JPA for data caching
  • Using batch processing

Using CDI to inject context and dependency

Context and Dependency Injection for Java EE (CDI) is one of the most important APIs under the Java EE umbrella. Introduced in Java EE 6, it now has a big influence over many other APIs.

In the recipe, you will learn how to use CDI in a couple of different ways and situations.

Getting ready

First, let's add the required dependency needed:

<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version...

Using Bean Validation for data validation

You can use Bean Validation to constrain your data in many different ways. In this recipe, we are going to use it to validate a JSF form, so we can validate it as soon as the user tries to submit it, and avoid any invalid data right away.

Getting ready

First, we add our dependencies:

        <dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
&lt...

Using servlet for request and response management

The Servlet API was created even before Java EE exists—actually before J2EE existed! It became part of EE in J2EE 1.2 (Servlet 2.2) in 1999.

This is a powerful tool to deal with a request/response context and this recipe will show you an example of how to do it.

Getting ready

Let's add our dependencies:

        <dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.0-b05</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
&lt...

Using Server Push to make objects available beforehand

One of the most important new features of Servlet 4.0 is the HTTP/2.0 support. It brings another cool and reliable feature—the Server Push.

This recipe will show you how to use Server Push in a filter and push the resources needed in every request that we want.

Getting ready

We should first add the dependencies needed:

        <dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.0-b07</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId&gt...

Using EJB and JTA for transaction management

The Java Transaction API, or JTA, is an API that enables distributed transactions over the Java EE environment. It is most powerful when you delegate the transaction management to the server.

This recipe will show you how to do it!

Getting ready

First, add the dependencies:

        <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.1.Final</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
...

Using EJB to deal with concurrency

Concurrency management is one of the biggest advantages supplied by a Java EE server. You can rely on a ready environment to deal with this tricky topic.

This recipe will show you how you can set up your beans to use it!

Getting ready

Just add a Java EE dependency to your project:

        <dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>

How to do it...

...

Using JPA for smart data persistence

The Java Persistence API is a specification that describes an interface for managing relational databases using Java EE.

It eases data manipulation and reduces a lot of the code written for it, especially if you are used to SQL ANSI.

This recipe will show you how to use it to persist your data.

Getting ready

Let's first add the dependencies needed:

        <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.1.Final</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId&gt...

Using EJB and JPA for data caching

Knowing how to build a simple and local cache for your application is an important skill. It may have a big impact on some data access performance and it is quite easy to do.

This recipe will show you how.

Getting ready

Simply add a Java EE dependency to your project:

        <dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>

How to do it...

...

Using batch processing

Batch processing is the last recipe of this chapter. Running background tasks is a useful and important skill in an enterprise context.

You could use it to process data in bulk or just to separate it from the UI processes. This recipe will show you how to do it.

Getting ready

Let's add our dependencies:

        <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.10.Final</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api&lt...
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Key benefits

  • Recipes to get you up-and-running with Java EE 8 application development
  • Learn how to apply the major Java EE 8 APIs and specifications
  • Implement microservices and Reactive programming with Java EE 8

Description

Java EE is a collection of technologies and APIs to support Enterprise Application development. The choice of what to use and when can be dauntingly complex for any developer. This book will help you master this. Packed with easy to follow recipes, this is your guide to becoming productive with Java EE 8. You will begin by seeing the latest features of Java EE 8, including major Java EE 8 APIs and specifications such as JSF 2.3, and CDI 2.0, and what they mean for you. You will use the new features of Java EE 8 to implement web-based services for your client applications. You will then learn to process the Model and Streaming APIs using JSON-P and JSON-B and will learn to use the Java Lambdas support offered in JSON-P. There are more recipes to fine-tune your RESTful development, and you will learn about the Reactive enhancements offered by the JAX-RS 2.1 specification. Later on, you will learn about the role of multithreading in your enterprise applications and how to integrate them for transaction handling. This is followed by implementing microservices with Java EE and the advancements made by Java EE for cloud computing. The final set of recipes shows you how take advantage of the latest security features and authenticate your enterprise application. At the end of the book, the Appendix shows you how knowledge sharing can change your career and your life.

Who is this book for?

This book is for developers who want to become proficient with Java EE 8 for their enterprise application development. Basic knowledge of Java is assumed

What you will learn

  • Actionable information on the new features of Java EE 8
  • Using the most important APIs with real and working code
  • Building server side applications, web services, and web applications
  • Deploying and managing your application using the most important Java EE servers
  • Building and deploying microservices using Java EE 8
  • Building Reactive application by joining Java EE APIs and core Java features
  • Moving your application to the cloud using containers
  • Practical ways to improve your projects and career through community involvement
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Apr 09, 2018
Length: 382 pages
Edition : 1st
Language : English
ISBN-13 : 9781788293037
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Oracle
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Estimated delivery fee Deliver to Chile

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Product Details

Publication date : Apr 09, 2018
Length: 382 pages
Edition : 1st
Language : English
ISBN-13 : 9781788293037
Vendor :
Oracle
Category :
Languages :
Tools :

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Table of Contents

12 Chapters
New Features and Improvements Chevron down icon Chevron up icon
Server-Side Development Chevron down icon Chevron up icon
Building Powerful Services with JSON and RESTful Features Chevron down icon Chevron up icon
Web- and Client-Server Communication Chevron down icon Chevron up icon
Security of Enterprise Architecture Chevron down icon Chevron up icon
Reducing the Coding Effort by Relying on Standards Chevron down icon Chevron up icon
Deploying and Managing Applications on Major Java EE Servers Chevron down icon Chevron up icon
Building Lightweight Solutions Using Microservices Chevron down icon Chevron up icon
Using Multithreading on Enterprise Context Chevron down icon Chevron up icon
Using Event-Driven Programming to Build Reactive Applications Chevron down icon Chevron up icon
Rising to the Cloud – Java EE, Containers, and Cloud Computing Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

Top Reviews
Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.5
(6 Ratings)
5 star 83.3%
4 star 0%
3 star 0%
2 star 16.7%
1 star 0%
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Eyvind Almqvist Mar 17, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Very practical!
Amazon Verified review Amazon
Bruno Souza Apr 25, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Having followed Elder during his writing, I'm a bit biased. But even that didn't prepare me for the tour-de-force that this book is!It is a Java EE 8 book, so, it covers all the new features. That's a given. It then goes into the core of JavaEE, with CDI, JPA, EJB, transactions. That's really good and would make a great book. Then the book dives into REST and Communication and then security. Ok, this is amazing! Covering all the JavaEE important features. Ops... But we are not even halfway through the book yet!The "second half" of the book is another book by itself! Standards, Microservices, Reactive apps, containers... Wow. We now go over and above Java EE and see it applied to our daily jobs and challenges.The book is a "cookbook", full of ready to use recipes that you can use immediately to solve real-life problems. It will help you apply Java EE the best way possible: by practicing instead of studying it. I loved and agree with what Ed Burns -- Servlets Spec Lead -- wrote in the foreword: this book should be called a "complete restaurant management with supply chain logistics and a cookbook on top". Well said, Mr. Burns, well said!Do I need to disclaim that I'm cited in the book and that I got a free, signed copy from Elder? I am and I did. But the book is way more amazing then I thought it would be when I saw Elder writing it. You should check it out.PS: BTW, with Jakarta EE just starting, don't miss the appendix, were Elder talks about contributing to the community. That by itself is a career-boosting lesson that can change your life! Just the appendix is worth the book. Just saying...
Amazon Verified review Amazon
Francisco Isidro Massetto Jul 20, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
If you want to learn about emerging technologies, frameworks and APIs on Java EE 8, that's the book!it approaches complex subjects on a very direct and easy to understand way. This book is the best reference for Java developers.
Amazon Verified review Amazon
Andres Galante Apr 25, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Java EE 8 Cookbook is a fantastic resource for enterprise Java developers. Though easy to follow steps it takes you on a journey to the latest features on Java EE 8.I specially like the chapter about how to write APIs using JSON-P and JSON-b using Lambdas.If you are a Java developer looking for a deep dive into the Java EE 8 world, picking this book is a non brainer.
Amazon Verified review Amazon
Otávio Gonçalves de Santana May 04, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is amazing, it is clean and well structure that makes each chapter independent, so the reader may read each topic as a reference without reading the others. It covers all parts of Java EE 8 and also how to use it with the mainstreams such as cloud computing, event-driven programming, docker and so on.
Amazon Verified review Amazon
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