[DesignPattern - Prototype] sample1

Design Pattern - Prototype

1. 클래스다이어그램

2. Source

• Product.java

  package com.dazzilove.prototype.sample1.framework;
  
  public interface Product extends Cloneable {
    public abstract void use(String s);
    public abstract Product createClone();
  }

• Manager.java

  package com.dazzilove.prototype.sample1.framework;
  
  import java.util.Hashtable;
  
  public class Manager {
    private Hashtable showcase = new Hashtable();
    
    public void register(String name, Product proto) {
      showcase.put(name, proto);
    }
    
    public Product create(String protoname) {
      Product p = (Product) showcase.get(protoname);
      return p.createClone();
    }
  }

• MessageBox.java

  package com.dazzilove.prototype.sample1;
  
  import com.dazzilove.prototype.sample1.framework.Product;
  
  public class MessageBox implements Product {
    
    private char decoChar;
    
    public MessageBox(char decoChar) {
      this.decoChar = decoChar;
    }
  
    public Product createClone() {
      Product p = null;
      
      try {
        p = (Product) clone();
      } catch(CloneNotSupportedException e) {
        e.printStackTrace();
      }
      
      return p;
    }
  
    public void use(String s) {
      int length = s.getBytes().length + 2;
      
      for(int i=0; i      System.out.print(decoChar);
      }
      System.out.println("");
      System.out.println(decoChar + s + decoChar);
      for(int i=0; i      System.out.print(decoChar);
      }
      System.out.println("");
    }
  }

• UnderlinePen.java

  package com.dazzilove.prototype.sample1;
  
  import com.dazzilove.prototype.sample1.framework.Product;
  
  public class UnderlinePen implements Product {
    private char underlineChar;
    
    public UnderlinePen(char underlineChar) {
      this.underlineChar = underlineChar;
    }
  
    public Product createClone() {
      Product p = null;
      
      try {
        p = (Product) clone();
      } catch(CloneNotSupportedException e) {
        e.printStackTrace();
      }
      
      return p;
    }
  
    public void use(String s) {
      int length = s.getBytes().length + 2;
      
      System.out.println("\"" + s + "\"");
      for(int i=0; i      System.out.print(underlineChar);
      }
      System.out.println("");
    }
  }

• Main.java

  package com.dazzilove.prototype.sample1;
  
  import com.dazzilove.prototype.sample1.framework.Manager;
  import com.dazzilove.prototype.sample1.framework.Product;
  
  public class Main {
    public static void main(String[] args) {
      //prepared
      Manager manager = new Manager();
      UnderlinePen uPen = new UnderlinePen('-');
      MessageBox mBox = new MessageBox('*');
      MessageBox sBox = new MessageBox('/');
      manager.register("strongMessage", uPen);
      manager.register("warningBox", mBox);
      manager.register("slashBox", sBox);
      
      //create
      Product p1 = manager.create("strongMessage");
      p1.use("Hellow, world.");
      Product p2 = manager.create("warningBox");
      p2.use("Hellow, world.");
      Product p3 = manager.create("slashBox");
      p3.use("Hellow, world.");
    }
  }

3. 결과출력