Patterns

Patterns are part of the engine that powers a component.

Creational

Abstract the instantiation process

• Make the system independent of how components are created
• Class pattern: Uses inheritance to vary the class' instantiation
• Creational Pattern: Delegate instantiation
• Composition over Inheritance

Factory

Creating families of components

Builder

Construction kit

Structural

Concerned with how components are composed to form larger structures

Decorator

Adds a little something

Adapter

Connects incompatible components

Bridge

Make abstraction and implementation exchangeable

Facade

The entry to a subsystem

Behavioral

Concerned with algorithms and the assignment of responsibilities

• Patterns of communication between behaviors
• Characterize complex control flow that's difficult to follow at run-time
• Shift focus from flow of control to how things are connected

Command

Encapsulates a request/(trans)action

Strategy

Interchangeable algorithms family