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Spring 5 Design Patterns
Spring 5 Design Patterns

Spring 5 Design Patterns: Master efficient application development with patterns such as proxy, singleton, the template method, and more

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Spring 5 Design Patterns

Overview of GOF Design Patterns - Core Design Patterns

In this chapter, you'll be given an overview of GOF Design Patterns, including some best practices for making an application design. You'll also get an overview of common problem--solving with design patterns.

I will explain the design patterns that are commonly used by the Spring Framework for better design and architecture. We are all in a global world, which means that if we have services in the market, they can be accessed across the Globe. Simply put, now is the age of the distributed computing system. So first, what is a distributed system? It's an application that is divided into smaller parts that run simultaneously on different computers and the smaller parts communicate over the network, generally using protocols. These smaller parts are called tiers. So if we want to create a distributed application...

Introducing the power of design patterns

So what is a design pattern? Actually, the phrase design pattern is not associated with any programming language, and also it doesn't provide language-specific solutions to problems. A design pattern is associated with the solution to repetitive problems. For example, if any problem occurs frequently, a solution to that problem has been used effectively. Any non-reusable solution to a problem can't be considered a pattern, but the problem must occur frequently in order to have a reusable solution, and to be considered as a pattern. So a design pattern is a software engineering concept describing recurring solutions to common problems in software design. Design patterns also represent the best practices used by experienced object-oriented software developers.

When you make a design for an application, you should consider all the...

Common GoF Design Pattern overview

The authors Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides are often referred to as the GoF, or Gang of Four. They published a book titled Design Patterns: Elements of Reusable Object-Oriented Software, which initiated the concept of design patterns in software development.

In this chapter, you will learn what GOF patterns are and how they help solve common problems encountered in object-oriented design.

The Gang of Four (GoF) patterns are 23 classic software design patterns providing recurring solutions to common problems in software design. The patterns are defined in the book Design Patterns: Elements of Reusable Object-Oriented Software. These patterns are categorized into two main categories:

  • Core Design Patterns
  • J2EE Design Patterns

Furthermore, Core Design Patterns are also subdivided into three main categories of design...

Creational design patterns

Let's look at the underlying design patterns of this category and how Spring Framework adopts them to provide loose coupling between components and create and manage the lifecycle of Spring components. Creational design patterns are associated with the method of object creation. The creation logic of the object is hidden to the caller of this object.

We are all aware of how to create an object using the new keyword in Java, as follows:

     Account account = new Account(); 

But this way is not suitable for some cases, because it is a hardcoded way of creating an object. It is also not a best practice to create an object because the object might be changed according to the nature of the program. Here, the creational design pattern provides the flexibility to create an object according to the nature of the program.

Now let's look at the different...

Summary

After reading this chapter, the reader should now have a good idea about the overview of GOF creational design patterns and its best practices. I highlighted the problems that come from not using design patterns in enterprise application development, and how Spring solves these problems by using the creational design patterns and good practices in the application. In this chapter, I have mentioned only one of the Creational Design pattern categories out of the three main categories of the GOF Design Patterns. The Creational design pattern is used for the creation of object instances, and also applies constraints at the creation time in the enterprise application in a specific manner using the Factory, Abstract Factory, Builder, Prototype, and Singleton patterns. In the next chapter, we will look at the other categories of the GOF Design Patterns-the structural design pattern...

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Key benefits

  • - Explore best practices for designing an application
  • - Manage your code easily with Spring's Dependency Injection pattern
  • - Understand the benefits that the right design patterns can offer your toolkit

Description

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

Who is this book for?

This book is for developers who would like to use design patterns to address common problems while designing an app using the Spring Framework and Reactive Programming approach. A basic knowledge of the Spring Framework and Java is assumed.

What you will learn

  • - Develop applications using dependency injection patterns
  • - Learn best practices to design enterprise applications
  • - Explore Aspect-Oriented Programming relating to transactions, security, and caching.
  • - Build web applications using traditional Spring MVC patterns
  • - Learn to configure Spring using XML, annotations, and Java.
  • - Implement caching to improve application performance.
  • - Understand concurrency and handle multiple connections inside a web server.
  • - Utilizing Reactive Programming Pattern to build Reactive web applications.
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Table of Contents

12 Chapters
Getting Started with Spring Framework 5.0 and Design Patterns Chevron down icon Chevron up icon
Overview of GOF Design Patterns - Core Design Patterns Chevron down icon Chevron up icon
Consideration of Structural and Behavioral Patterns Chevron down icon Chevron up icon
Wiring Beans using the Dependency Injection Pattern Chevron down icon Chevron up icon
Understanding the Bean Life Cycle and Used Patterns Chevron down icon Chevron up icon
Spring Aspect Oriented Programming with Proxy and Decorator pattern Chevron down icon Chevron up icon
Accessing a Database with Spring and JDBC Template Patterns Chevron down icon Chevron up icon
Accessing Database with Spring ORM and Transactions Implementing Patterns Chevron down icon Chevron up icon
Improving Application Performance Using Caching Patterns Chevron down icon Chevron up icon
Implementing the MVC Pattern in a Web Application using Spring Chevron down icon Chevron up icon
Implementing Reactive Design Patterns Chevron down icon Chevron up icon
Implementing Concurrency Patterns Chevron down icon Chevron up icon

Customer reviews

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Full star icon Full star icon Full star icon Full star icon Half star icon 4.1
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Snehil Nov 09, 2017
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Great content. Best for professional
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Amazon Customer Nov 09, 2017
Full star icon Full star icon Full star icon Full star icon Full star icon 5
very good book for professionals and good to understand design pattern of spring , basic knowledge of spring is prerequisite. Have a practical knowledge . Great enthuse and easy to understand , awesome book . recommending this book for spring design pattern .
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Amazon Customer Dec 12, 2017
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Amazon Customer Nov 12, 2017
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This book is one of the best books for Spring for understanding the core concepts related to Spring Design patterns. The code examples used are perfectly aligned to the concepts being explained. A big thumbs up to Dinesh for the effort👍
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Digvijay Patil Nov 04, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Excellent book for Java Spring Professionals
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