Book Image

Java EE 8 Design Patterns and Best Practices

By : Rhuan Rocha, Joao Carlos Purificação
Book Image

Java EE 8 Design Patterns and Best Practices

By: Rhuan Rocha, Joao Carlos Purificação

Overview of this book

Patterns are essential design tools for Java developers. Java EE Design Patterns and Best Practices helps developers attain better code quality and progress to higher levels of architectural creativity by examining the purpose of each available pattern and demonstrating its implementation with various code examples. This book will take you through a number of patterns and their Java EE-specific implementations. In the beginning, you will learn the foundation for, and importance of, design patterns in Java EE, and then will move on to implement various patterns on the presentation tier, business tier, and integration tier. Further, you will explore the patterns involved in Aspect-Oriented Programming (AOP) and take a closer look at reactive patterns. Moving on, you will be introduced to modern architectural patterns involved in composing microservices and cloud-native applications. You will get acquainted with security patterns and operational patterns involved in scaling and monitoring, along with some patterns involved in deployment. By the end of the book, you will be able to efficiently address common problems faced when developing applications and will be comfortable working on scalable and maintainable projects of any size.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
5
Aspect-Oriented Programming and Design Patterns
Index

Explaining the concept of management and monitoring patterns


The volume of applications running in a cloud is ever-increasing and these applications commonly run in a remote data center. Because of this, we don't have full control over the infrastructure of an application, and it can become difficult to manage and monitor applications running remotely.

The management and monitoring patterns were created to allow us to manage and monitor our applications and expose runtime information about the application that supports business changes and customization without having to redeploy the application. Using this pattern, we can decouple the monitoring logic from the application logic, and we can also update the ambassador without impacting the application. In this section, we will explain the following management and monitoring patterns:

  • The ambassador pattern
  • The health endpoint monitoring pattern
  • The external configuration store pattern

The ambassador pattern

In some cases, you may want to implement...