PlayerRankHistory.java

@Entity
public class PlayerRankHistory implements Serializable {

    private static final long serialVersionUID = 1L;
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    
    private Long player;
    
    private Long rank;
    
    private Long points;
    
    private Date date;
    
    public PlayerRankHistory(){
        
    }
    
    #the rest of implementation
}