Design Patterns - Revision history

Rasimsen: /* Command Design Pattern */

2018-09-19T20:38:13Z

‎Command Design Pattern

2018-09-18T22:10:44Z

‎Chain of Responsibility Design Pattern

2018-09-18T21:59:11Z

‎Proxy Design Pattern

2018-08-13T15:54:04Z

‎Decorator Design Pattern

2018-08-13T15:42:49Z

‎Decorator Design Pattern

2018-08-12T22:13:31Z

‎Composite Design Pattern

2018-08-12T22:05:18Z

2018-08-12T21:45:50Z

‎Bridge Design Pattern

2018-08-12T21:16:25Z

‎Adapter Design Pattern

2018-08-12T20:57:19Z

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 ====[[Command Design Pattern]]====
 Encapsulate a command request as an object
 ====[[Interpreter Design Pattern]]====
 A way to include language elements in a program

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 ====[[Chain of Responsibility Design Pattern]]====
 A way of passing a request between a chain of objects
 ====[[Command Design Pattern]]====
 Encapsulate a command request as an object

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 ====[[Proxy Design Pattern]]====
 An object representing another object
 ===Behavioral patterns===

← Older revision		Revision as of 15:54, 13 August 2018
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	i.e.: car - basic car - sports car - luxury car implementation		i.e.: car - basic car - sports car - luxury car implementation
		+
		+	Decorator class implements the component interface and '''it has a HAS-A relationship with the component interface'''. The component variable should be accessible to the child decorator classes, so we will make this variable '''protected'''.

	====[[Facade Design Pattern]]====		====[[Facade Design Pattern]]====

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 ====[[Decorator Design Pattern]]====
 Add responsibilities to objects dynamically
 ====[[Facade Design Pattern]]====
 A single class that represents an entire subsystem

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 ====[[Composite Design Pattern]]====
 A tree structure of simple and composite objects
 ====[[Decorator Design Pattern]]====
 Add responsibilities to objects dynamically

← Older revision		Revision as of 22:05, 12 August 2018
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	i.e.:We have a DrawAPI interface which is acting as a bridge implementer and concrete classes RedCircle, GreenCircle implementing the DrawAPI interface.		i.e.:We have a DrawAPI interface which is acting as a bridge implementer and concrete classes RedCircle, GreenCircle implementing the DrawAPI interface.
		+
		+	====[[Filter Design Pattern]]====
		+	Filter pattern or Criteria pattern is a design pattern that '''enables developers to filter a set of objects using different criteria and chaining them in a decoupled way through logical operations'''. This type of design pattern comes under structural pattern as this pattern combines multiple criteria to obtain single criteria.
		+
		+

	====[[Composite Design Pattern]]====		====[[Composite Design Pattern]]====

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 ====[[Bridge Design Pattern]]====
-Separates an object’s interface from its implementation
+Bridge is used '''when we need to decouple an abstraction from its implementation so that the two can vary independently'''. This type of design pattern comes under structural pattern as this pattern decouples implementation class and abstract class by providing a bridge structure between them.
 ====[[Composite Design Pattern]]====
 A tree structure of simple and composite objects

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 These design patterns are all about Class and Object composition. Structural class-creation patterns use inheritance to compose interfaces. Structural object-patterns define ways to compose objects to obtain new functionality.
 ====[[Adapter Design Pattern]]====
-Match interfaces of different classes
+Adapter pattern works as '''a bridge between two incompatible interfaces'''. This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces.
 ====[[Bridge Design Pattern]]====
 Separates an object’s interface from its implementation

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 ====[[Abstract Factory Design Pattern]]====
 Creates an instance of several families of classes
 ====[[Builder Design Pattern]]====
 Separates object construction from its representation