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Hibernate version:3.0.4

Name and version of the database you are using:MySql 4.1.11

Hi guys,

I need to use Composite Pattern to design my product categor. I follow The Head First Design Patterns book and the java file is like below:

package headfirst.composite.menuiterator;

import java.util.*;

public abstract class MenuComponent {

public void add(MenuComponent menuComponent) {
throw new UnsupportedOperationException();
}
public void remove(MenuComponent menuComponent) {
throw new UnsupportedOperationException();
}
public MenuComponent getChild(int i) {
throw new UnsupportedOperationException();
}

public String getName() {
throw new UnsupportedOperationException();
}
public String getDescription() {
throw new UnsupportedOperationException();
}
public double getPrice() {
throw new UnsupportedOperationException();
}
public boolean isVegetarian() {
throw new UnsupportedOperationException();
}

public abstract Iterator createIterator();

public void print() {
throw new UnsupportedOperationException();
}
}

=======================================

package headfirst.composite.menuiterator;

import java.util.Iterator;
import java.util.ArrayList;

public class MenuItem extends MenuComponent {

String name;
String description;
boolean vegetarian;
double price;

public MenuItem(String name,
String description,
boolean vegetarian,
double price)
{
this.name = name;
this.description = description;
this.vegetarian = vegetarian;
this.price = price;
}

public String getName() {
return name;
}

public String getDescription() {
return description;
}

public double getPrice() {
return price;
}

public boolean isVegetarian() {
return vegetarian;
}

public Iterator createIterator() {
return new NullIterator();
}

public void print() {
System.out.print(" " + getName());
if (isVegetarian()) {
System.out.print("(v)");
}
System.out.println(", " + getPrice());
System.out.println(" -- " + getDescription());
}
}

==================================

package headfirst.composite.menuiterator;

import java.util.Iterator;
import java.util.ArrayList;

public class Menu extends MenuComponent {

ArrayList menuComponents = new ArrayList();
String name;
String description;

public Menu(String name, String description) {
this.name = name;
this.description = description;
}

public void add(MenuComponent menuComponent) {
menuComponents.add(menuComponent);
}

public void remove(MenuComponent menuComponent) {
menuComponents.remove(menuComponent);
}

public MenuComponent getChild(int i) {
return (MenuComponent)menuComponents.get(i);
}

public String getName() {
return name;
}

public String getDescription() {
return description;
}


public Iterator createIterator() {
return new CompositeIterator(menuComponents.iterator());
}


public void print() {
System.out.print("\n" + getName());
System.out.println(", " + getDescription());
System.out.println("---------------------");

Iterator iterator = menuComponents.iterator();
while (iterator.hasNext()) {
MenuComponent menuComponent =
(MenuComponent)iterator.next();
menuComponent.print();
}
}
}

so what should I put for each class like

@hibernate.class table="MenuComponent"

pls help, Thanks !

regards,
Prettyhandling