plumpmath / designpatterns-44

Design Patterns Dojo

This project was created to refine my knowledge of design patterns. It is based on the Design Pattern Library found on Pluralsight.

Adapter

Adapters can abstract a make collection non-conforming classes confirm to a common abstraction. Can also be a type of wrapper.

Example:

• ADO .NET
  • IDataAdapter
    • OdbcDataAdapter
    • OleDbDataAdapter
    • SqlClientDataAdapter

Bridge

A way to connect two abstractions so that the concrete implementations are connected but can be extended independently. Two abstract classes, where one composes of the other. "Decouple an abstraction from its implementation so the two can vary independently." (GOF)

Builder

Separates the construction of a complex object from its representation so that the same construction process can create different representations. Useful when the order of the method calls to build the object is important.

Chain of Responsibility

Like a linked list of nodes that propagates a method call until one of the nodes can handles it. Always call the head method and one of the nodes will return the handled result via the chain.

Command

Composite

Decorator

Event Aggregator

Facade

Factories

Flyweight

Interpreter

Iterator

Lazyload

MVP

MVVM

Mediator

Memento

Null Object

Observer

Prototype

Proxy

Repository

Rules

Service Locator

Singleton

State

Strategy

Template Method

Unit of Work

Visitor