Prototype 패턴
이라 한다.http://drive.google.com/uc?export=view&id=0ByLqiEM75qEzU2xVYXFjc3l3Ylk
Prototype 패턴
http://drive.google.com/uc?export=view&id=0ByLqiEM75qEzR3hLbTZBVFZ1Z1U
Prototype 패턴-예제
public class Main {
public static void main(String[] args) {
// 준비
Manager manager = new Manager();
UnderlinePen upen = new UnderlinePen('~');
MessageBox mbox = new MessageBox('*');
MessageBox sbox = new MessageBox('/');
manager.register("strong message", upen);
manager.register("warning box", mbox);
manager.register("slash box", sbox);
// 생성
Product p1 = manager.create("strong message");
p1.use("Hello, world.");
Product p2 = manager.create("warning box");
p2.use("Hello, world.");
Product p3 = manager.create("slash box");
p3.use("Hello, world.");
}
}
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();
}
}
public interface Product extends Cloneable {
public abstract void use(String s);
public abstract Product createClone();
}
public class MessageBox implements Product {
private char decochar;
public MessageBox(char decochar) {
this.decochar = decochar;
}
public void use(String s) {
int length = s.getBytes().length;
for (int i = 0; i < length + 4; i++) {
System.out.print(decochar);
}
System.out.println("");
System.out.println(decochar + " " + s + " " + decochar);
for (int i = 0; i < length + 4; i++) {
System.out.print(decochar);
}
System.out.println("");
}
public Product createClone() {
Product p = null;
try {
p = (Product)clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return p;
}
}
public class UnderlinePen implements Product {
private char ulchar;
public UnderlinePen(char ulchar) {
this.ulchar = ulchar;
}
public void use(String s) {
int length = s.getBytes().length;
System.out.println("\\"" + s + "\\"");
System.out.print(" ");
for (int i = 0; i < length; i++) {
System.out.print(ulchar);
}
System.out.println("");
}
public Product createClone() {
Product p = null;
try {
p = (Product)clone();
} catch (CloneNotSupportedException e) {
e.printStackTrace();
}
return p;
}
}