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How should I implement this in Hibernate/ Spring?
public class Movie {

  @Id
  @GeneratedValue
  private long id;

  private String name;

  @OneToMany(mappedBy = "id.movie")
  private List<Rating> ratings

}

public class Rating {

  @Embeddable
  public static class RatingId {

  @ManyToOne
  @JoinColumn(name = "movieId")
  private Movie movie;

  @ManyToOne
  @JoinColumn(name = "userId)
  private User user;

 // Equals and Hashcode which should check the associated tables @Ids

  }

  @EmbeddedId
  private RatingId id;

  private String comment;

  private int rating;

}

public class User {

  @Id
  @GeneratedValue
  private long id;


  private String userName;
}