目前我正在努力获取我所需的数据。 findAll()方法需要根据其被调用的位置来获取数据。 我不想为每个实体图编写不同的方法。 另外,我希望避免调用entitymanagers并自己形成(重复的)查询。 基本上,我想使用内置的findAll方法,但是带有我喜欢的实体图。 有任何机会吗?
@Entity
@Table(name="complaints")
@NamedEntityGraphs({
@NamedEntityGraph(name="allJoinsButMessages", attributeNodes = {
@NamedAttributeNode("customer"),
@NamedAttributeNode("handling_employee"),
@NamedAttributeNode("genre")
}),
@NamedEntityGraph(name="allJoins", attributeNodes = {
@NamedAttributeNode("customer"),
@NamedAttributeNode("handling_employee"),
@NamedAttributeNode("genre"),
@NamedAttributeNode("complaintMessages")
}),
@NamedEntityGraph(name="noJoins", attributeNodes = {
})
})
public class Complaint implements Serializable{
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
private long id;
private Timestamp date;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "customer")
private User customer;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "handling_employee")
private User handling_employee;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name="genre")
private Genre genre;
private boolean closed;
@OneToMany(mappedBy = "complaint", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private List<ComplaintMessage> complaintMessages = new ArrayList<ComplaintMessage>();
//getters and setters
}
还有我的JPARepository
@Repository
public interface ComplaintRepository extends JpaRepository<Complaint, Long>{
List<Complaint> findByClosed(boolean closed);
@EntityGraph(value = "allJoinsButMessages" , type=EntityGraphType.FETCH)
@Override
List<Complaint> findAll(Sort sort);
}