问具有集合集合的JPA实体

EN

public class Diet extends BaseEntity{
@NotEmpty
@Column(unique = true)
private String name;
@OneToMany(cascade=CascadeType.ALL, mappedBy = "diet")
@LazyCollection(LazyCollectionOption.FALSE)
private List<DietEntry> dietEntry = new ArrayList<>();

@Entity
@Table(name = "diet_entry")
public class DietEntry extends BaseEntity{
@ManyToOne(cascade=CascadeType.ALL)
@JoinColumn(name = "dietId")
private Diet diet;
@ManyToMany(cascade=CascadeType.ALL)
@LazyCollection(LazyCollectionOption.FALSE)
private List<Meal> meals = new ArrayList<>();
@ManyToMany(cascade=CascadeType.ALL)
@LazyCollection(LazyCollectionOption.FALSE)
private List<ProductQuantity> products = new ArrayList<>();

    Query query = this.em.createQuery("SELECT distinct(de) FROM     DietEntry de join de.products dep join de.meals dem WHERE de.diet = :diet");
    query.setParameter("diet", diet);
    return query.getResultList();