Behavioral Design Patterns

Pertains to communication between objects.

Patterns


Chain of Responsibility	A way of passing a request between a chain of objects.
Command	Encapsulate a command request as an object.
Interpreter	A way to include language elements in a program.
Iterator	Sequentially access the elements of a collection.
Mediator	Defines simplified communication between classes.
Memento	Capture and restore an object's internal state.
Null Object	Designed to act as a default value of an object.
Observer	A way of notifying change to a number of classes.
State	Alter an object's behavior when its state changes.
Strategy	Encapsulates an algorithm inside a class.
Template method	Defer the exact steps of an algorithm to a subclass.
Visitor	Defines a new operation to a class without change.