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  • Book Overview & Buying Scala Design Patterns
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Scala Design Patterns

Scala Design Patterns

By : Nikolov
4.1 (7)
Buy this Book
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Scala Design Patterns

Scala Design Patterns

4.1 (7)
By: Nikolov
Buy this Book

Overview of this book

Scala has become increasingly popular in many different IT sectors. The language is exceptionally feature-rich which helps developers write less code and get faster results. Design patterns make developer’s lives easier by helping them write great software that is easy to maintain, runs efficiently and is valuable to the company or people concerned. You will learn about the various features of Scala and be able to apply well-known, industry-proven design patterns in your work. The book starts off by focusing on some of the most interesting features of Scala while using practical real-world examples. We will also cover the popular "Gang of Four" design patterns and show you how to incorporate functional patterns effectively. By the end of this book, you will have enough knowledge and understanding to quickly assess problems and come up with elegant solutions.
Table of Contents (14 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Get in touch
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1
The Design Patterns Out There and Setting Up Your Environment
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The Design Patterns Out There and Setting Up Your Environment
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Design patterns
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Design pattern categories
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Choosing a design pattern
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Setting up the development environment
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Summary
2
Traits and Mixin Compositions
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Traits and Mixin Compositions
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Traits
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Mixin compositions
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Multiple inheritance
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Linearization
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Testing traits
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Traits versus classes
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Summary
3
Unification
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Unification
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Functions and classes
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Algebraic data types and class hierarchies
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Modules and objects
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Summary
4
Abstract and Self Types
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Abstract and Self Types
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Abstract types
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Polymorphism
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Self types
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Summary
5
Aspect-Oriented Programming and Components
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Aspect-Oriented Programming and Components
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Aspect-oriented programming
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Components in Scala
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Summary
6
Creational Design Patterns
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Creational Design Patterns
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What are creational design patterns?
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The factory method design pattern
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The abstract factory
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Other factory design patterns
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Lazy initialization
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The singleton design pattern
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The builder design pattern
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The prototype design pattern
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Summary
7
Structural Design Patterns
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Structural Design Patterns
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Defining structural design patterns
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The adapter design pattern
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The decorator design pattern
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The bridge design pattern
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The composite design pattern
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The facade design pattern
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The flyweight design pattern
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The proxy design pattern
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Summary
8
Behavioral Design Patterns – Part One
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Behavioral Design Patterns – Part One
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Defining behavioral design patterns
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The value object design pattern
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The null object design pattern
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The strategy design pattern
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The command design pattern
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The chain of responsibility design pattern
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The interpreter design pattern
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Summary
9
Behavioral Design Patterns – Part Two
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Behavioral Design Patterns – Part Two
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The iterator design pattern
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The mediator design pattern
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The memento design pattern
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The observer design pattern
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The state design pattern
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The template method design pattern
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The visitor design pattern
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Summary
10
Functional Design Patterns – the Deep Theory
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Functional Design Patterns – the Deep Theory
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Abstraction and vocabulary
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Monoids
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Functors
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Monads
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Summary
11
Applying What We Have Learned
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Applying What We Have Learned
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The lens design pattern
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The cake design pattern
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The pimp my library design pattern
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The stackable traits design pattern
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The type class design pattern
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Lazy evaluation
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Partial functions
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Implicit injection
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Duck typing
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Memoization
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Summary
12
Real-Life Applications
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Real-Life Applications
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Reasons to use libraries
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The Scalaz library
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Writing a complete application
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Summary
13
Other Books You May Enjoy
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Other Books You May Enjoy
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Leave a review - let other readers know what you think

Writing a complete application

So far in the book we've seen a lot of examples. Some of them were quite complete, while others were meant to demonstrate only a specific part of what we were looking at. In real applications, it is most likely that you will have to combine multiple design patterns that we went through. In order to do so properly, it is important that the requirements are understood well. In the following subsections, we will provide the application specifications and then we will go step-by-step through actually writing the application. The amount of code we write will be a lot, so we will focus on the more important parts of our application and we might skip some other parts.

Application specifications

Before doing anything, we must always have some specifications. Sometimes these specifications are not entirely clear, and it is our responsibility to make sure everything is detailed enough for us to understand and achieve them. However, in actual software engineering...

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Tech Concepts
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Programming languages
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Scala Design Patterns
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