Tiger下的Visitor

03-05-17 英雄传说
public interface Visitable
{
void accept(Visitor<Visitable> visitor);
}
public interface Visitor<A>
{
void visit(A visitable);
}


public class VisitableA implements Visitable
{
public String Call(){
return "AAA";
}
public void accept(Visitor<Visitable> visitor) {
visitor.visit(this);
}
}


public class VisitorA<A> implements Visitor<B>
{ public void visit(A visitable) {
System.out.println(visitable.Call());
}

}


public class Client{
public static void main(String args[])
{
Visitor<Visitable> visitor=new VisitorA<VisitableA>();
Visitable visitable=new VisitableA();
visitable.accept(visitor);
}
}

英雄传说
2003-05-17 18:08
jdon不能用尖括号,
改在如下地址:
http://umlchina.smiling.com/group/photo/photoshow.ecgi?photo_id=791122&group_id=9986