Book Image

Software Architecture with C++

By : Adrian Ostrowski, Piotr Gaczkowski
Book Image

Software Architecture with C++

By: Adrian Ostrowski, Piotr Gaczkowski

Overview of this book

Software architecture refers to the high-level design of complex applications. It is evolving just like the languages we use, but there are architectural concepts and patterns that you can learn to write high-performance apps in a high-level language without sacrificing readability and maintainability. If you're working with modern C++, this practical guide will help you put your knowledge to work and design distributed, large-scale apps. You'll start by getting up to speed with architectural concepts, including established patterns and rising trends, then move on to understanding what software architecture actually is and start exploring its components. Next, you'll discover the design concepts involved in application architecture and the patterns in software development, before going on to learn how to build, package, integrate, and deploy your components. In the concluding chapters, you'll explore different architectural qualities, such as maintainability, reusability, testability, performance, scalability, and security. Finally, you will get an overview of distributed systems, such as service-oriented architecture, microservices, and cloud-native, and understand how to apply them in application development. By the end of this book, you'll be able to build distributed services using modern C++ and associated tools to deliver solutions as per your clients' requirements.
Table of Contents (24 chapters)
Section 1: Concepts and Components of Software Architecture
Section 2: The Design and Development of C++ Software
Architectural and System Design
Section 3: Architectural Quality Attributes
Section 4: Cloud-Native Design Principles
About Packt

Using builders

Builders are similar to factories, a creational pattern coming from the Gang of Four. Unlike factories, they can help you build more complex objects: those that cannot be built in a single step, such as types assembled from many separate parts. They also provide you with a way to customize the construction of objects. In our case, we'll skip designing complex hierarchies of builders. Instead, we'll show how a builder can help. We'll leave implementing hierarchies to you, as an exercise.

Builders are needed when an object cannot be produced in a single step, but having a fluent interface can just make them pleasant to use if the single step is not trivial. Let's demonstrate creating fluent builder hierarchies using CRTP.

In our case, we'll create a CRTP, GenericItemBuilder, that we'll use as our base builder, and FetchingItemBuilder, which will be a more specialized one that can fetches data using a remote address if that's a supported...