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Explore ways to make your software flexible, extensible, and adaptable

Learn new concepts that you can easily blend with your own software development style

Develop the mindset of making conscious architecture decisions

Description

Building for maintainability is key to keep development costs low (and developers happy). The second edition of "Get Your Hands Dirty on Clean Architecture" is here to equip you with the essential skills and knowledge to build maintainable software. Building upon the success of the first edition, this comprehensive guide explores the drawbacks of conventional layered architecture and highlights the advantages of domain-centric styles such as Robert C. Martin's Clean Architecture and Alistair Cockburn's Hexagonal Architecture. Then, the book dives into hands-on chapters that show you how to manifest a Hexagonal Architecture in actual code. You'll learn in detail about different mapping strategies between the layers of a Hexagonal Architecture and see how to assemble the architecture elements into an application. The later chapters demonstrate how to enforce architecture boundaries, what shortcuts produce what types of technical debt, and how, sometimes, it is a good idea to willingly take on those debts. By the end of this second edition, you'll be armed with a deep understanding of the Hexagonal Architecture style and be ready to create maintainable web applications that save money and time. Whether you're a seasoned developer or a newcomer to the field, "Get Your Hands Dirty on Clean Architecture" will empower you to take your software architecture skills to new heights and build applications that stand the test of time.

Who is this book for?

This book is for you if you care about the architecture of the software you are building. To get the most out of this book, you must have some experience with web development. The code examples in this book are in Java. If you are not a Java programmer but can read object-oriented code in other languages, you will be fine. In the few places where Java or framework specifics are needed, they are thoroughly explained.

What you will learn

Identify potential shortcomings of using a layered architecture

Apply varied methods to enforce architectural boundaries

Discover how potential shortcuts can affect the software architecture

Produce arguments for using different styles of architecture

Structure your code according to the architecture

Run various tests to check each element of the architecture

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50 Algorithms Every Programmer Should Know

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Get Your Hands Dirty on Clean Architecture

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David M Dec 21, 2023

Mir hat die Hands-On Mentälität gefallen, die praktischen Beispiele und Realitäten in Entwickler und Architekten Teams. Ein super Leitfaden meiner Meinung nach in Software Architektur und 100% nachvollziehbare Argumentation für maintainability als Schlüssel für gelungene Software Projekte.

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Stefan Helmerichs Jul 22, 2023

Das Buch behandelt die an anderen Stellen schon oft vorgestellte "Hexagonale Architektur". Der Fokus des Buches liegt daber aber nicht auf dem theoretischen und idealisierten Aspekt, sondern auf den fachlichen Praktiken, die bei der Umsetzung helfen. Es ist daher, gerade für Entwickler mit wenig Erfahrungen in Architekturfragen, ein absolutes must-read, da es praxisnahe Beispiele aufzeigt, wie die theoretischen Ansätze verwirklicht werden können.Hintergrundwissen wird erläutert, aber nicht zu stark vertieft, und es werden für die meisten Ideen und Konzepte auch weiterführende Links angegeben, die es ermöglichen, weitere Informationen zu holen, was gerade für Junior-Entwickler sehr nützlich ist. Insgesamt führt dieser Stil dazu, dass alle Argumente sowohl für als auch wider bestimmte Praktiken nachvollzogen werden können, was das Verständnis erleichtert.Es werden nützliche Technologien, wie z.B. ArchUnit, kurz vorgestellt und mit direkten Beispielen versehen, und auch aufgezeigt, wo diese Wege hinführen können, was gerade bei Entwicklern die diese Technologien noch nicht kennen zu einfacherer Adaption führen.Exkurse sind kurz und verständlich, und der Autor schafft es auf ca. 140 Seiten sehr effektiv das zu vermitteln, was von anderen bekannten Autoren vernachlässigt wird.Ein kleinerer Kritikpunkt ist die starke Verwendung von Lombok und Spring. Da beide Technologien weit verbreitet sind, ist dies nachvollziehbar, aber gerade aufgrund der Tatsache, dass Lombok mehr und mehr unnötig wird, und das Spring-Framework sich teilweise sehr rapide ändert, könnte dies, auf lange Sicht, zu einer schnelleren Obsoleszenz führen, als wenn das Buch rein theoretisch wäre. Dies erscheint allerdings unwahrscheinlich, da die verwendeten Idiome sich über lange Zeit stabil gehalten haben.Auch hätte das erste Unit-Test Beispiel um einiges kürzer sein können, daher gefällt mir persönlich der satz nicht, dass Unit-Tests "kaum besser" sein könnten - aber auch hier muss angemerkt werden, dass die meisten Unit Tests um einiges unverständlicher sind. Dies hat aber keinerlei Auswirkung auf den Inhalt des Buches oder die Punkte, die dargelegt werden.Alles in Allem: Kurz, verständlich, für jeden geeignet, der für das Thema Softwarearchitektur Interesse zeigt und nicht bereits Erfahrung mit der Umsetzung hexagonaler Architektur hat.

Simon Martinelli Aug 05, 2023

There are many books about clean architecture, also known as hexagonal architecture. But most of them are very dogmatic.This book is different because it focuses on the practical implementation of clean architecture.It can be used as a guide for your next project to implement clean architecture.I was only missing some more examples, but I highly recommend this book to learn more about clean architecture.

C. Everke Dec 29, 2023

"Get Your Hands Dirty on Clean Architecture" by Tom Hombergs is a must-read literature for anyone in the software development, be it a student, apprentice, developer, or architect. The book delves into the principles of sound software, providing practical insights into the implementation of Clean Architecture.Tom skillfully demonstrates the application of Clean Architecture in variously scenarios, making it accessible to readers at all levels. Even for those who may not fully adhere to the principles of a hexagonal architecture in their projects, the book offers valuable tips for designing a suitable architecture for (Micro-) Services.This book offers a hands-on approach that resonates well with developers and architects alike. It's not just a guide for adhering to Clean Architecture principles but also a repository of practical advice for crafting effective architectures tailored to individual projects.In essence, "Get Your Hands Dirty on Clean Architecture" is a must-read for Lead Developers and Architects. It stands out as a comprehensive guide that empowers readers to navigate the complexities of software architecture with confidence and practical know-how.

A-D.DIAKOGIANNIS Jul 25, 2023

The goal of the book is to provide a proven design path for Clean Architecture. The book describes and uses the architectural style known as "hexagonal architecture", "ports and adapters" or "clean architecture" utilizing the benefits like maintainability, lower costs, productivity and developer joy.The book addresses the main question that all developers have "How do I apply this style to my project?". The book mainly uses Spring for its examples but in a generic way so it is applicable to all Java enterprise frameworks. It is written in a very digestible way, with many practical examples that can be adapted directly. The author provides the need-to-know theoretical background knowledge in a "build-up way" so that the design decisions made in the examples can be easily understood. The book is also small enough to use it as a handbook.As a conclusion if you are searching for book that will extensively describe Clean Architecture and its applications then this book is not for you. If you are looking for a quick guide with the optimal design path then this is the book that you need. if you are unfamiliar with Clean Architecture then you can use this book as a guideline and then go deeper where you feel like it using the referenced resources. If you already are already familiar but you don’t know exactly how to implement this style, or you are having doubts, again you need this book.

Get Your Hands Dirty on Clean Architecture: Build 'clean' applications with code examples in Java , Second Edition

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