Design Patterns in C# and .NET by Dmitri Nesteruk

Overview

This repo provides examples for common creational, structural, and behavioral design patterns. The example code in this repo, although may be modified for learning purposes, are not my own and were provided by the online course titled above. The documentation below is something I created to accompany the examples for quick reference in the future and testament to what I have learned throughout the course.

Gang of Four Design Patterns

Design Patterns: Elements of Reusable Object-Oriented Software, published in 1994, was the original book which introduced a set of solutions to common problems in software development. These patterns are commonly known as the Gang of Four Patterns. Gang of Four referres to the original authors of the book Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides. The GOF patterns are a set of 23 common software design patterns which fall under three main categories: creational, structural, and behavioral.

Creational Patterns

Builders:

• Fluent Builder
• Fluent Builder Inheritance With Recursive Generics
• Stepwise Builder
• Functional Builder
• Faceted Builder

Factories:

• Factory
• Factory Method
• Async Factory Method
• Object Tracking And Bulk Replacement
• Inner Factory
• Abstract Factory
• Abstract Factory OCP

Prototypes:

• Copy By Serialization Prototype
• Copy Constructor Prototype
• Explicit Interface Prototype
• ICloneable Prototype
• Inheritance Prototype

Singletons:

• Singleton
• Dependency Injection Singleton
• Per Thread Singleton
• Monostate Singleton
• Ambient Context Singleton

Structural Patterns

Adapters:

• Caching Adapter
• Vector Raster Adapter
• Generic Value Adapter

Bridge:

• Bridge

Composites:

• Geometric Shape Composite
• Neural Network Composite
• Specification Composite

Decorators:

• Custom String Builder Decorator
• Adapter Decorator
• Multiple Inheritance with Interfaces Decorator
• Multiple Inheritance with Default Interfaces Decorator

Facades:

• Facade

Flyweights:

• Repeating User Names Flyweight
• Text Formatting Flyweight

Proxies:

• Protection Proxy
• Property Proxy
• Value Proxy
• Composite Proxy ( SoA/AoS )
• Composite Proxy ( Array Backed Properties )
• Dynamic Proxy ( For Logging )
• ViewModel Proxy
• Bit Fragmenting Proxy

Behavioral Patterns

Chains:

• Method Chain
• Broker Chain

Commands:

• Command
• Composite Command

Interpreters:

• Handmade Interpreter ( Lexing and Parsing )

Iterators:

• Object Iterator
• Array Backed Properties Iterator

Mediators:

• Chat Room Mediator
• Event Broker Mediator

Mementos:

• Memento
• Memento ( Undo Redo Functionality )

Extras:

• Proxy vs. Decorator