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23 Cards in this Set
- Front
- Back
Provides an interface for creating families of related or dependent objects without specifying their concrete class
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Abstract Factory
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Separate the construction of complex object from its representation so that the same construction process can create different representations
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Builder
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Define an interface for creating an object, but let subclasses decide which to instantiate. Lets defer instantiations to subclasses.
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Factory Method
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Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.
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Prototype
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Ensure a class only has one instance, and provide a global point of access to it.
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Singleton
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Convert the interface of a class into another interface clients expect. Lets classes work together that couldn't otherwise because of incompatible interfaces
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Adapter
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Decouple an abstraction from its implementation so that the two can vay independently.
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Bridge
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Compose objects into tree structures to represent part-whole hierarchies. Lets clients treat individual objects and compositions of object uniformly.
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Composite
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Attach additional responsibilities to an object dynamically. Provide a flexible alternative to subclassing for extending functionalities
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Decorator
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Provide a unified interface to a set of interfaces in a subsystem. Defines a higher-level interface that makes the subsystem easier to use.
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Facade
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Use sharing to support large number of fine-grained objects efficiently.
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Flyweight
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Provide a surrogate or placeholder for another object to control access to it.
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Proxy
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Avoid coupling the sender of a request to its receiver by giving more than one object a chance to handle the request. Chain the receiving object and pass the request along the chain until an object handles it.
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Chain of Responsabilities
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Encapsulate a request as an object, thereby letting you parameterize clients with different requests, queue or log requests, and support undoable operations.
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Command
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Given a language, define a representation for its grammar along with an interpreter that uses the representation to interpret sentences in the language.
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Interpreter
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Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation
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Iterator
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Define an object that encapsulate how a set of object interact. It Promotes loose coupling by keeping objects from referring to each other explicitly, and it lets you vary their interaction independently.
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Mediator
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Without violating encapsulation, capture and externalize an object's internal state so that the object can be restored to this state later.
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Memento
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Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
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Observer
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Allow an object to alter its behavior when its internal state changes. The object will appear to change its class.
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State
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Define a family of algorithms, encapsulate each one, and make them interchangeable. Lets the algorithm vary independently from clients that use it.
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Strategy
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Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Let subclasses redefine certain steps of an algorithm without changing the algorithm structure.
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Template Method
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Represent an operator to be performed on the elements of an object structure. Lets you define a new operation without changing the classes of the elements on which it operates
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Visitor
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