추상 팩토리 패턴

1 개요

abstract factory pattern

추상 팩토리 패턴

• 객체를 통해 제품을 생산
• 부품을 조립해서 제품을 만드는 구조
• Client의 인스턴스가 ConcreteFactory의 인스턴스에 객체 생성을 맡김
• 객체 구성(composition)

 

2 예제 (java)

/* GUIFactory example -- */

public class ApplicationRunner {
    public static void main(String[] args) {
        new Application(createOsSpecificFactory());
    }
 
    public static GUIFactory createOsSpecificFactory() {
        if (System.getProperty("os.name").startsWith("Windows")) return new WinFactory();
        return new OSXFactory();
    }
}
 
interface Button {
    void paint();
}
 
interface GUIFactory {
    Button createButton();
}
 
class WinFactory implements GUIFactory {
    public Button createButton() {
        return new WinButton();
    }
}
 
class OSXFactory implements GUIFactory {
    public Button createButton() {
        return new OSXButton();
    }
}
 
class WinButton implements Button {
    public void paint() {
        System.out.println("I'm a WinButton");
    }
}
 
class OSXButton implements Button {
    public void paint() {
        System.out.println("I'm an OSXButton");
    }
}
 
class Application {
    public Application(GUIFactory factory) {
        Button button = factory.createButton();
        button.paint();
    }
}

3 같이 보기

• Builder 패턴
• Factory method 패턴
• Composite 패턴
• Singleton 패턴
• 디자인 패턴

4 참고

• http://en.wikipedia.org/wiki/Abstract_factory_pattern