Design Pattern Classification

To my students:

There are the different design patterns in their respective classes. Please take note...

Behavioral design patterns

Chain of Responsibility	Define a method of passing a request among a chain of objects.
Command	Encapsulate a command request in an object.
Interpreter	Allow inclusion of language elements in an application.
Iterator	Enable sequential access to collection elements.
Mediator	Define simplified communication between classes.
Memento	Save and restore the internal state of an object.
Observer	Define a scheme for notifying objects of changes to another object.
State	Alter the behavior of an object when its state changes.
Strategy	Encapsulate an algorithm inside a class.
Template Method	Allow subclasses to redefine the steps of an algorithm.
Visitor	Define a new operation on a class without changint it. Creational design patterns Abstract Factory Encapsulate a set of analogous factories that produce families of objects. Builder Encapsulate the construction of complex objects from their representation; so, the same building process can create various representations by specifying only type and content. Factory Method Allow subclasses to "decide" which class to instantiate. Prototype Create an initialized instance for cloning or copying. Singleton Ensure that only a single instance of a class exists and provide a single method for gaining access to it.
	Structural design patterns Adapter Adapt an interface to an expected interface. Bridge Decouple an interface from its implementation. Composite Create a tree structure for part-whole hierarchies. Decorator Extend functionality dynamically. Façade (Facade) Simplify usage by defining a high-level interface. Flyweight Support fine-grained objects efficiently by sharing. Proxy Represent an object with another object for access control.