Book Image

Spring 5 Design Patterns

By : Dinesh Rajput
Book Image

Spring 5 Design Patterns

By: Dinesh Rajput

Overview of this book

Design patterns help speed up the development process by offering well tested and proven solutions to common problems. These patterns coupled with the Spring framework offer tremendous improvements in the development process. The book begins with an overview of Spring Framework 5.0 and design patterns. You will understand the Dependency Injection pattern, which is the main principle behind the decoupling process that Spring performs, thus making it easier to manage your code. You will learn how GoF patterns can be used in Application Design. You will then learn to use Proxy patterns in Aspect Oriented Programming and remoting. Moving on, you will understand the JDBC template patterns and their use in abstracting database access. Then, you will be introduced to MVC patterns to build Reactive web applications. Finally, you will move on to more advanced topics such as Reactive streams and Concurrency. At the end of this book, you will be well equipped to develop efficient enterprise applications using Spring 5 with common design patterns
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

What is Aspect-Oriented Programming?

As mentioned earlier, Aspect-Oriented Programming (AOP) enables modularization of cross-cutting concerns. It complements Object-oriented programming (OOP) which is another programing paradigm. OOP has class and object as key elements but AOP has aspect as key element. Aspects allow you to modularize some functionality across the application at multiple points. This type of functionality is known as cross-cutting concerns. For example, security is one of the cross-cutting concerns in the application, because we have to apply it at multiple methods where we want security. Similarly, transaction and logging are also cross-cutting concerns for the application and many more. Let's see in the following figure how these concerns are applied to the business modules:

As you can see in the preceding figure, there are three main business modules as TransferService, AccountService, and BankService. All business modules require some common functionality such as Security...