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 operational patterns


To solve a problem successfully, we need to evaluate a number of important steps so as to ensure that the chance of error is minimized. These steps are as follows:

  1. Correctly identifying the problem
  2. Defining the operations needed to solve the problem
  3. Developing the operations needed to solve the problem

In a business environment, both in an application project and in other areas, responding to problems quickly is integral to the success of a task. It is also important that we create a well-defined process for solving problems that will increase the chance of success, keep our work organized, and result in a more reliable solution.

In the first step, as mentioned previously, we identify the problem that needs to be resolved. Here, it is very important to define the boundaries of the problem and to assess whether or not the identified issue is indeed the problem. 

Next, we define a high-level solution to the problem. In this step, the solution will be...