在Hibernate JPA：OneToMany更新实体时，如何覆盖默认的删除条件？

Question

我观察到，在更新OneToMany关系时，首先hibernate从子实体中删除条目，然后更新子实体中的新数据。有没有办法覆盖默认删除查询或是否可能？

@Entity
@Table(name="USER_PROFILE")
public class UserProfile implements Serializable{

    @Id @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(name="PROFILE_ID")
    private Long profileId; 

    @OneToMany(fetch = FetchType.EAGER)
    @JoinTable(name = "CAND_USER_LANGUAGE", joinColumns = @JoinColumn(name = "PROFILE_ID"), inverseJoinColumns = @JoinColumn(name = "LANGUAGE_ID"))
    private Set<LanguageMaster> language;
}

在模型中设置值：

Set<UserLanguage> languageSet = some set of UserLanguage;
UserProfile userProfile =  userProfileDao.findByLoginId(usrId);
BeanUtils.copyProperties(userProfile, form);
userProfile.setLanguage(languageSet);
userProfileDao.saveOrUpdate(userProfile);


@Entity
@Table(name = "USER_LANGUAGE")
public class UserLanguage {

    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long ID;

    @Column(name = "LANGUAGE_ID")
    private Integer languageId;

    @Column(name = "PROFILE_ID")
    private Long profileId;
}