Book Image

Hands-On Design Patterns with C++ (Second Edition) - Second Edition

By : Fedor G. Pikus
5 (1)
Book Image

Hands-On Design Patterns with C++ (Second Edition) - Second Edition

5 (1)
By: Fedor G. Pikus

Overview of this book

C++ is a general-purpose programming language designed for efficiency, performance, and flexibility. Design patterns are commonly accepted solutions to well-recognized design problems. In essence, they are a library of reusable components, only for software architecture, and not for a concrete implementation. This book helps you focus on the design patterns that naturally adapt to your needs, and on the patterns that uniquely benefit from the features of C++. Armed with the knowledge of these patterns, you’ll spend less time searching for solutions to common problems and tackle challenges with the solutions developed from experience. You’ll also explore that design patterns are a concise and efficient way to communicate, as patterns are a familiar and recognizable solution to a specific problem and can convey a considerable amount of information with a single line of code. By the end of this book, you’ll have a deep understanding of how to use design patterns to write maintainable, robust, and reusable software.
Table of Contents (26 chapters)
1
Part 1: Getting Started with C++ Features and Concepts
5
Part 2: Common C++ Idioms
10
Part 3: C++ Design Patterns
18
Part 4: Advanced C++ Design Patterns

Chapter 14, The Template Method Pattern and the 
Non-Virtual Idiom

  1. A behavioral pattern describes a way to solve a common problem by using a specific method to communicate between different objects.
  2. The template method pattern is a standard way to implement an algorithm that has a rigid skeleton, or the overall flow of control, but allows for one or more customization points for specific kinds of problems.
  3. The Template Method lets the sub-classes (derived types) implement specific behaviors of the otherwise generic algorithm. The key to this pattern is the way the base and the derived types interact.
  4. The more common hierarchical approach to design sees the low-level code provide building blocks from which the high-level code builds the specific algorithm, by combining them in a particular flow of control. In the template pattern, the high-level code does not determine the overall algorithm and is not in control of the overall flow. The lower-level code controls...