Object Oriented Software Patterns (from Gamma, Helm Johnson, Vlissides)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Abstract Factory | Provide an interface for creating families of related or dependent objects without specifying their concrete classes.
🗑
|
||||
| Builder | Separate the construction of a complex object from its representation so that the same construction process can create different representations.
🗑
|
||||
| Factory Method | Define an interface for creating an object, but let subclasses decide which class to instantiate. Lets a class defer instantiation to subclasses.
🗑
|
||||
| Prototype | Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.
🗑
|
||||
| Singleton | Ensure a class only has one instance, and provide a global point of access to it.
🗑
|
||||
| Adapter | Convert the interface of a class into another interface clients expect. Lets classes work together that couldn't otherwise because of incompatible interfaces.
🗑
|
||||
| Bridge | Decouple an abstration from its implementation so that the two can very independently.
🗑
|
||||
| Composite | Compose objects into tree structures to represent part-whole hierarchies. Lets clients treat individual objects and compositions of objects uniformly.
🗑
|
||||
| Decorator | Attach additional responsibilities to an object dynamically. Provides a flexible alternative to subclassing for extending functionality.
🗑
|
||||
| Facade | Provide a unified interface to a set of interfaces in a subsystem. Defines a higher-level interface that makes the subsystem easier to use.
🗑
|
||||
| Flyweight | Use sharing to support large numbers of fine-grained objects efficiently.
🗑
|
||||
| Proxy | Provide a surrogate or placeholder for another object to control access to it.
🗑
|
||||
| Chain of Responsibility | 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 objects and pass the request along the chain until an object handles it.
🗑
|
||||
| Command | Encapsulate a request as an object, thereby letting you parameterize clients with different requests, queue or log requests, and support undoable operations.
🗑
|
||||
| Interpreter | Given a language, define a representation for its grammar along with an interpreter that uses the representation to interpret sentences in the language.
🗑
|
||||
| Iterator | Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
🗑
|
||||
| Mediator | Define an object that encapsulates how a set of objects interact. Promotes loose coupling by keeping objects from referring to each other explicitly, and it lets you vary their interaction independently.
🗑
|
||||
| Memento | Without violating encapsulation, capture and externalize an objects's internal state so that the object can be restored to this state later.
🗑
|
||||
| Observer | Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
🗑
|
||||
| State | Allow an object to alter its behavior when its internal state changes. The object will appear to change its class.
🗑
|
||||
| Strategy | Define a family of algorithms, encapsulate each one, and make them interchangeable. Lets the algorithm vary independently from clients that use it.
🗑
|
||||
| Template Method | Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Lets subclasses redefine certain steps of an algorithm without changing the algorithm's structure.
🗑
|
||||
| Visitor | Represent an operation to be performed on the elments of an object structure. Lets you define a new operation without changing the classes of the elements on which it operates.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
PRO Teacher
JohnW
Popular Computers sets