Hibernate Cascade：保存父实体而不保存子实体时删除子实体

因此，我有一个schedule对象，它包含一个DateActiveScheduleItems列表。我希望这样，如果我从schedule对象的列表中删除DateActiveScheduleItems项目并使用CrudePository保存该计划，它将从数据库中删除DateActiveScheduleItem，目前，我的代码似乎没有做到这一点。我应该如何更改级联

@Entity
public class Schedule {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

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

@ManyToOne
@JoinColumn(name = "usergroup_id")
private UserGroup userGroup;

private String description;


private boolean master;//is this a schedule for all supervalus(true) or one supervalu(false)

@OneToMany(mappedBy = "schedule",cascade = CascadeType.ALL)
private List<DateActiveScheduleItem> dateActiveScheduleItems = new ArrayList<>();

@OneToMany(mappedBy = "schedule",cascade = CascadeType.PERSIST)
private List<MusicScheduleItem> musicScheduleItems = new ArrayList<>();

@OneToMany(mappedBy = "schedule",cascade = CascadeType.PERSIST)
private List<AdvertisementScheduleItem> advertisementScheduleItems = new ArrayList<>();

@Basic
@Temporal(TemporalType.DATE)
private java.util.Date dateAdded;
public Long getId() {
    return id;
 //getters setters
}

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孤立删除从关系中删除相应的子对象时，将其删除。所以，若从dateActiveScheduleItems集合中删除1个DateActiveScheduleItem，JPA也会自动从数据库中删除该DateActiveScheduleItem

@OneToMany(mappedBy = "schedule",cascade = CascadeType.ALL, orphanRemoval="true")
private List<DateActiveScheduleItem> dateActiveScheduleItems = new ArrayList<>();

@OneToMany（mappedBy=“schedule”，cascade=CascadeType.ALL，orphaneremovation=“true”）
私有列表dateActiveScheduleItems=new ArrayList（）；

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有关OrphanRemovel的更多信息

获取“带有cascade=“all delete orphan”的集合的错误不再被拥有的实体实例引用“如果您碰巧知道那里发生了什么，我将对此发布一个问题，但我必须等到90分钟计时器用完我没有使用这种类型的级联。我总是使用删除参数。这里有人和你有同样的问题。

@OneToMany(mappedBy = "schedule",cascade = CascadeType.ALL, orphanRemoval="true")
private List<DateActiveScheduleItem> dateActiveScheduleItems = new ArrayList<>();