User.java

/**
 * Copyright (C) 2013 Tokanagrammar Team
 *
 * This is a jigsaw-like puzzle game,
 * except each piece is token from a source file,
 * and the 'complete picture' is the program.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package edu.umb.cs.entity;

import java.io.Serializable;
import java.util.*;
import javax.persistence.*;


/**
 * @author              Vy Thuy Nguyen
 * @version             2.0-snapshot Mar 23, 2013
 * Last modified:       
 */
@Entity
public class User   implements Serializable 
{
    @Id
    @GeneratedValue (strategy = GenerationType.AUTO)
    private int id;
    
    private String username;
    
    @OneToMany(cascade = {CascadeType.PERSIST, CascadeType.PERSIST}, 
                          fetch = FetchType.EAGER, mappedBy = "user")
    private Set<Game> games;
    
    public User()
    {
        
    }
    
    public User(String uname)
    {
        this.username = uname;
        games = new HashSet<Game>();
    }
    
    public void addGame(Game g)
    {
        games.add(g);
    }
    
    public Set<Game> getGames()
    {
        return Collections.unmodifiableSet(games);
    }
    
    /**
     * 
     * @return total points this user has earned so far
     */
    public long getPoints()
    {
        long points = 0;
        for (Game g : games)
            points += g.getPoint();
        return points;
    }
    
    /**
     * 
     * @param p
     * @return the total points the user have earned when playing with given puzzle
     */
    public long getPointsForPuzzle(Puzzle puzzle)
    {
        long points = 0;
        for (Game g : games)
        {
            if (g.getPuzzle().equals(puzzle))
                points += g.getPoint();
        }
        return points;
    }

    public String getUsername()
    {
        return username;
    }
    
    // Object interface 
    
    @Override
    public boolean equals(Object obj)
    {
        if (obj == null || !(obj instanceof User))
        {
            return false;
        }
        
        User other = (User) obj;
        return username.equals(other.username);
    }

    @Override
    public int hashCode()
    {
        return username.hashCode();
    }
}