如何使用JPA将3个表连接成一个表？

@Entity
@Table(name = "A")
public class A {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    
    // Getters and setters
}

@Entity
@Table(name = "B")
public class B {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    
    // Getters and setters
}

@Entity
@Table(name = "C")
public class C {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    @ManyToOne
    @JoinColumn(name = "a_id")
    private A a;
    
    @ManyToOne
    @JoinColumn(name = "b_id")
    private B b;
    
    private String cName;
    
    // Getters and setters
}

String jpql = "SELECT c FROM C c JOIN FETCH c.a JOIN FETCH c.b";
List<C> result = entityManager.createQuery(jpql, C.class).getResultList();