Post on 21-Jan-2016
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DESIGN PATTERNS-CREATIONAL
PATTERNS
WATTANAPONG SUTTAPAKSoftware Engineering, School of Information Communication Technology,University of PHAYAO
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จุ�ดประสงค์การเร�ยนร� �
เข้�าใจุร�ปแบบข้องแบบร�ปการออกแบบทั้��ง 5 ประเภทั้
ประย�กต์ใช้�แบบร�ปการออกแบบ Factory ,Abstract Factory, Singleton, Builder, Prototype Pattern ได�
CREATIONAL PATTERNS
• objects creation and hiding the creation logic• no instantiating objects directly• flexible deciding for a given use case
5 patterns 1. Factory2. Abstract factory3. Builder4. Prototype5. Singleton
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FACTORY PATTERN
• most used in java• create common interface• create object pattern that inherited(is a) from common interface• create instant object that inherited(has a) from create object pattern create new object via instant object(common)
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FACTORY PATTERN
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FACTORY PATTERN
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FACTORY PATTERN
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FACTORY PATTERN
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FACTORY PATTERN Output
Inside Circle::draw() method.
Inside Rectangle::draw() method.
Inside Square::draw() method.
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FACTORY PATTERN
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FACTORY PATTERN
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ABSTRACT FACTORY PATTERN Factory of factories
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ABSTRACT FACTORY PATTERN Factory PatternShapeCircleRectangleSquare
Abstract Factory PatternColorRedBlueBlackAbstractFactoryColorFactoryShapeFactoryFactoryProducerbstractFactoryPatternDemo
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ABSTRACT FACTORY PATTERN
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ABSTRACT FACTORY PATTERN
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ABSTRACT FACTORY PATTERN
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ABSTRACT FACTORY PATTERN
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ABSTRACT FACTORY PATTERN
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ABSTRACT FACTORY PATTERN Output
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SINGLETON PATTERN
• Simplest design patterns
• Create object only single object
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SINGLETON PATTERN
Output Hello World
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BUILDER PATTERN
Build complex object using simple objects
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BUILDER PATTERN implements
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BUILDER PATTERN implements
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BUILDER PATTERN implements
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BUILDER PATTERN implements
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BUILDER PATTERN implements
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BUILDER PATTERN Output
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PROTOTYPE PATTERN
creating duplicate object while keeping performance
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PROTOTYPE PATTERN implements
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PROTOTYPE PATTERN implements
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PROTOTYPE PATTERN implements
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PROTOTYPE PATTERN
Output