Hibernate, вопрос про Join'ы

Все никак не могу понять логику того, как JoinColumn определяет какую колонку с какой надо связать.

@Entity
@Table(name = "BETS")
public class Bet {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE)
@Column(name = "id_bet") // Primary Key
private int id_bet;
@Column(name = "id_result")
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_result")
private int id_result;
@Column(name = "bet_on")
private String bet_on;
@Column(name = "amount")
private int amount;
public Bet() {
}
public void setResultId(int id_result) {
    this.id_result = id_result;
}
public void setBetOn(String bet_on) {
    this.bet_on = bet_on;
}
public void setAmount(int amount) {
    this.amount = amount;
}
public int getBetId() {
    return id_bet;
}
public int getResultId() {
    return id_result;
}
public String getBetOn() {
    return bet_on;
}
public int getAmount() {
    return amount;
}

И вот этого:

@Entity
@Table(name = "RESULTS")
public class Result {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE)
@Column(name = "id_result")  //Primary Key
private static short id_result;
@OneToMany(fetch = FetchType.LAZY)
@Column(name = "id_event")
private short id_event;
@Column(name = "winner")
private String winner;
@Column(name = "multiplier")
private double multiplier;
public void setEventId(short id_event) {
    this.id_event = id_event;
}
public void setWinner(String winner) {
    this.winner = winner;
}
public void multiplier(double multiplier) {
    this.multiplier = multiplier;
}
public int getResultId() {
    return id_result;
}
public int getEventId() {
    return id_event;
}
public String getWinner() {
    return winner;
}
public double getMultiplier() {
    return multiplier;
}

Надо связать классы по id_result(Bets) -> id_result(Results)