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Go Design Patterns

You're reading from Go Design Patterns Best practices in software development and CSP

Product type Paperback

Published in Feb 2017

Publisher Packt

ISBN-13 9781786466204

Length 402 pages

Edition 1st Edition

Languages

Go

Concepts

Design Patterns

Author (1):

Mario Castro Contreras

View More author details

Table of Contents (11) Chapters

Preface

1. Ready... Steady... Go! FREE CHAPTER

2. Creational Patterns - Singleton, Builder, Factory, Prototype, and Abstract Factory Design Patterns

3. Structural Patterns - Composite, Adapter, and Bridge Design Patterns

4. Structural Patterns - Proxy, Facade, Decorator, and Flyweight Design Patterns

5. Behavioral Patterns - Strategy, Chain of Responsibility, and Command Design Patterns

6. Behavioral Patterns - Template, Memento, and Interpreter Design Patterns

7. Behavioral Patterns - Visitor, State, Mediator, and Observer Design Patterns

8. Introduction to Gos Concurrency

9. Concurrency Patterns - Barrier, Future, and Pipeline Design Patterns

10. Concurrency Patterns - Workers Pool and Publish/Subscriber Design Patterns

Composite design pattern

The Composite design pattern favors composition (commonly defined as a has a relationship) over inheritance (an is a relationship). The composition over inheritance approach has been a source of discussions among engineers since the nineties. We will learn how to create object structures by using a has a approach. All in all, Go doesn't have inheritance because it doesn't need it!

Description

In the Composite design pattern, you will create hierarchies and trees of objects. Objects have different objects with their own fields and methods inside them. This approach is very powerful and solves many problems of inheritance and multiple inheritances. For example, a typical inheritance problem is when you have an entity that inherits from two completely different classes, which have absolutely no relationship between them. Imagine an athlete who trains, and who is a swimmer who swims:

The Athlete class has a Train() method
The Swimmer class has a Swim() method

The Swimmer...

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Authors (1)

Castro Contreras

Castro Contreras

Mario Castro Contreras is a software engineer who has specialized in distributed systems and big data solutions. He works as a site reliability engineer, and now he is focused on containerized solutions and apps using most of Google Cloud suite, especially Kubernetes. He has broad experience in systems and solutions integration, and he has written many scalable and reliable 12-factor apps using Go and Docker. He has designed Big Data architectures for financial services and media, and he has written data processing pipelines using event-driven architectures written purely in Go. He is also very active in the open source community, and you can find him on his GitHub account with the username sayden. In the past, he has also written mobile applications and back ends in Java. Mario is passionate about programming languages, and he found the best balance between fun and productivity in Go; however, recently he has enjoyed writing in Rust and embedded systems in C. He is also passionate about road cycling and winter sports.

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