Builder - 복잡한 인스턴스 만들기

When Using It

인스턴스 생성시 복잡한 초기화 과정을 거칠시 사용하는 패턴이다.

Class Diagram

Sample Code



public class Director {

private Builder builder;

public Director(Builder builder) {

this.builder = builder;

}

public void construct() {

builder.buildName("TEST");

builder.buildPrice(10000);

}

}



public interface Builder {

public void buildName(String name);

public void buildPrice(int price);

}

public class ConcreteBuilder implements Builder {

private Product product = new Product();

@Override

public void buildName(String name) {

product.setName(name);

}

@Override

public void buildPrice(int price) {

product.setPrice(price);

}

public Product getProduct() {

return product;

}

}

public class Product {

private String name;

private int price;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getPrice() {

return price;

}

public void setPrice(int price) {

this.price = price;

}

}

 
Caution

특별한 주의사항은 없다.