public class Actor { Long id; @OneToMany(cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH...Living> livings = new ArrayList(); @OneToOne(cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH...class UserDetail { Long id; @OneToOne(cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH...Long id; String name; @OneToMany(cascade = { CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH
OneToMany默认行为是延迟加载 //mappedBy:指定关系被维护端,指定OrderItem里面的order,相当于hibernate的inverse放弃维护 @OneToMany(cascade={CascadeType.REFRESH...sellPrice; } //默认立即加载 //optional=true,选项允许为null,false时,不能为null @ManyToOne(cascade={CascadeType.MERGE,CascadeType.REFRESH...cardno; } //一对一配置: @OneToOne(mappedBy="idcard",cascade={CascadeType.PERSIST,CascadeType.MERGE,CascadeType.REFRESH...return name; } public void setName(String name) { this.name = name; } @ManyToMany(cascade=CascadeType.REFRESH...return name; } public void setName(String name) { this.name = name; } @ManyToMany(cascade=CascadeType.REFRESH
CascadeType CascadeType.PERSIST级联新增(又称级联保存); CascadeType.MERGE:级联合并(级联更新); CascadeType.REMOVE:级联删除; CascadeType.REFRESH
GeneratedValue private Long id; private String username; private String password; /** * CascadeType.REFRESH...* FetchType.EAGER:急加载,立即从数据库中加载 */ @ManyToMany(cascade = {CascadeType.REFRESH}, fetch = FetchType.EAGER
// 维护端注解 @ManyToMany (cascade = CascadeType.REFRESH) @JoinTable (//关联表 name = "student_teacher...joinColumns = @JoinColumn (name = "student_id" ))//维护端外键被维护端注解 @ManyToMany(cascade = CascadeType.REFRESH...• CascadeType.REFRESH: cascades the refresh operation to associated entities if refresh() is called 当
public void setTwtime(Date twtime) { this.twtime = twtime; } @OneToMany(cascade = { CascadeType.REFRESH
private List orderItems; @ManyToOne(targetEntity = UscGuideEntity.class, cascade = CascadeType.REFRESH...false) private OscOrderEntity orderEntity; @ManyToOne(targetEntity = PscSkuEntity.class, cascade = CascadeType.REFRESH
CascadeType.REFRESH:级联刷新:获取A对象时也重新获取最新的B对象。对EntityManager的refresh(object)方法。
其中options可以是以下组合: CascadeType.MERGE 级联更新 CascadeType.PERSIST 级联保存 CascadeType.REFRESH 级联刷新 CascadeType.REMOVE
CascadeType.REFRESH 级联刷新操作:假设场景 有一个订单,订单里面关联了许多商品,这个订单可以被很多人操作,那么这个时候A对此订单和关联的商品进行了修改,与此同时,B也进行了相同的操作
只需要在操作主体的注解上配置cascade /** * cascade:配置级联操作 * CascadeType.MERGE 级联更新 * CascadeType.PERSIST 级联保存: * CascadeType.REFRESH
懒加载的一对多、多对多、一对一等配置: @OneToMany(cascade = { CascadeType.REFRESH, CascadeType.PERSIST, CascadeType.MERGE
JSONField(format = "yyyy-MM-dd HH:mm:ss") private Date updateTime; @ManyToMany(cascade = { CascadeType.REFRESH
CascadeType.REFRESH | 级联刷新;获取父实体的同时也会重新获取最新的子实体。
public void setName(String name) { this.name = name; } @OneToOne(targetEntity=Menu.class,cascade=CascadeType.REFRESH
setName(String name) { this.name = name; } @OneToOne(targetEntity=Menu.class,cascade=CascadeType.REFRESH
blog.csdn.net/strive_peter/article/details/76274240 @ManyToMany(targetEntity = Role.class, cascade = CascadeType.REFRESH
username; private String password; private Date lastPasswordResetDate; @ManyToMany(cascade = {CascadeType.REFRESH
OneToOne(cascade = {CascadeType.MERGE,CascadeType.PERSIST,CascadeType.REMOVE}) REFRESH(自动刷新) 官方翻译使用了CascadeType.REFRESH
只需要在操作主体的注解上配置 cascade /** * cascade:配置级联操作 * CascadeType.MERGE 级联更新 * CascadeType.PERSIST 级联保存: * CascadeType.REFRESH
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