Design Patterns Flashcards
Abstract Factory
Groups object factories that have a common theme.
Builder
Constructs complex objects by separating construction and representation.
Factory Method
Creates objects without specifying the exact class to create.
Prototype
Creates objects by cloning an existing object.
Singleton
Restricts object creation for a class to only one instance.
Adapter
Allows classes with incompatible interfaces to work together by wrapping its own interface around that of an already existing class.
Bridge
Decouples an abstraction from its implementation so that the two can vary independently.
Composite
Composes zero-or-more similar objects so that they can be manipulated as one object.
Decorator
Dynamically adds/overrides behavior in an existing method of an object.
Facade
Provides a simplified interface to a large body of code.
Flyweight
Reduces the cost of creating and manipulating a large number of similar objects.
Proxy
Provides a placeholder for another object to control access, reduce cost, and reduce complexity.
Chain of Responsibility
Delegates commands to a chain of processing objects.
Command
Creates objects which encapsulate actions and parameters.
Interpreter
Implements a specialized language.
Iterator.
Accesses the elements of an object sequentially without exposing its underlying representation.
Mediator
Allows for loose coupling between classes by being the only class that has detailed knowledge of their methods.
Memento
Provides the ability to restore an object to its previous state (undo).
Observer
is a publish/subscribe pattern which allows a number of observer objects to see an event.
State
Allows an object to alter its behavior when its internal state changes.
Strategy
Allows one of a family of algorithms to be selected on-the-fly at runtime.
Template Method
Defines the skeleton of an algorithm as an abstract class, allowing its subclasses to provide concrete behavior.
Visitor
Separates an algorithm from an object structure by moving the hierarchy of methods into one object.
Groups object factories that have a common theme.
Abstract Factory
Constructs complex objects by separating construction and representation.
Builder
Creates objects without specifying the exact class to create.
Factory Method
Creates objects by cloning an existing object.
Prototype
Restricts object creation for a class to only one instance.
Singleton
Allows classes with incompatible interfaces to work together by wrapping its own interface around that of an already existing class.
Adapter
Decouples an abstraction from its implementation so that the two can vary independently.
Bridge
Composes zero-or-more similar objects so that they can be manipulated as one object.
Composite
Dynamically adds/overrides behavior in an existing method of an object.
Decorator
Provides a simplified interface to a large body of code.
Facade
Reduces the cost of creating and manipulating a large number of similar objects.
Flyweight
Provides a placeholder for another object to control access, reduce cost, and reduce complexity.
Proxy
Delegates commands to a chain of processing objects.
Chain of Responsibility
Creates objects which encapsulate actions and parameters.
Command
Implements a specialized language.
Interpreter
Accesses the elements of an object sequentially without exposing its underlying representation.
Iterator.
Allows for loose coupling between classes by being the only class that has detailed knowledge of their methods.
Mediator
Provides the ability to restore an object to its previous state (undo).
Memento
is a publish/subscribe pattern which allows a number of observer objects to see an event.
Observer
Allows an object to alter its behavior when its internal state changes.
State
Allows one of a family of algorithms to be selected on-the-fly at runtime.
Strategy
Defines the skeleton of an algorithm as an abstract class, allowing its subclasses to provide concrete behavior.
Template Method
Separates an algorithm from an object structure by moving the hierarchy of methods into one object.
Visitor
