所以orphanRemoval只适用与子实体仅与父实体有关联。 参考链接:Overview of JPA/Hibernate Cascade Types
Learn JPA Cascade Types and how they are related to Hibernate Cascade Types. Learn how to control the orphan removal with an example.
@Cascade(value = {org.hibernate.annotations.CascadeType.SAVE_UPDATE}) 级联删除 @OneToMany(mappedBy = "projectByProPlanId",orphanRemoval=true) @Cascade(value = {org.hibernate.annotations.CascadeType.SAVE_UPDATE}) save-update: 级联保存(load以后如果子对象发生了更新,也会级联更新). 但它不会级联删除 d...
Cascadeattribute ismandatory, when ever we apply relationship between objects, cascade attribute transfers operations done on one objectontoits related child objects If we writecascade = “all”then changes at parent class object will be effected to child class object too, if we writecascade = “a...
Cascade types (can override default JPA cascades). FetchMode Fetch options on associations. FlushModeType Enumeration extending javax.persistence flush modes. GenerationTime At what time(s) will the generation occur? LazyCollectionOption Lazy options available for a collection. ...
问Hibernate:不能使用CascadeType.PERSISTEN最近工作中由于要求只能用hibernate+jpa 与数据库进行交互，在简单...
Cascade Types in JPA and Hibernate Learn JPA Cascade Types and how they are related to Hibernate Cascade Types. Learn how to control the orphan removal with an example. Hibernate Merging and Refreshing Entities Hibernate merge() does exactly the opposite of what refresh() does i.e. causing the...
除此之外,该属性column定义了外键列的名称和属性的值,cascadeHibernate 应该如何对这个关系进行级联操作。 执行上述配置后,将打印出以下 DDL 语句: ... Hibernate: drop table T_PERSON if exists Hibernate: drop table T_PHONE if exists ... Hibernate: create table T_PERSON ( ID bigint not null, ...
Retrieve the cascade style of the indicated component property. Specified by: getCascadeStyle in interface CompositeType Parameters: i - The property index, Returns: The cascade style. isMutable public boolean isMutable() Description copied from interface: Type Are objects of this type mutable. (Wi...
cascade=all keycolumn=CUSTOMER_ID/ one-to-manyclass=Order/ /bag 54 动态模型(Dynamicmodels) /class /hibernate-mapping 注意,虽然是用目标类名来关联的,但是关联的目标类型除了是POJO之外,也可以是一个 动态的实体。 在使用dynamic-map为SessionFactory设置了默认的实体模式,可以在运行期使用Map的 Map: Session...