hibernate

Hibernate audit log of fields' change

由 若如初见. 提交于 2021-02-04 18:36:46
问题 How can I log the changes of the entity into log files? Consider I have Person like this. import org.hibernate.envers.Audited; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.GeneratedValue; import javax.persistence.Column; @Entity @Audited public class Person { @Id @GeneratedValue private int id; private String name; private String surname; // add getters, setters, constructors, equals and hashCode here } and a code of changing existing Person Person p1

Is it possible to turn off hibernate version increment for particular update?

由 断了今生、忘了曾经 提交于 2021-02-04 17:15:46
问题 Is it possible update entity in database without modifying version of entity using hibernate? Using my web application users can create or update entities. And where is another asynchronous process which “processes” these entities after any user operation. If user opens entity for update before entity is “processed”, but tries to save it after it is “processed”, user will get “OptimisticLockException” and all his entered data will be lost. But I would like to overwrite data updated in

@PreUpdate doesn't save parent object when it's updated

由 前提是你 提交于 2021-02-04 14:10:19
问题 I have two entities with relation one to many. Parent can have several Child entity instances. I added a field to the parent that stores the date of children modifications( childrenLastModifiedDate ). To maintain that, I added method: @PrePersist @PreUpdate @PreRemove private void handle() { parent.setChildrenLastModifiedDate(now()); } Here is the problem. It's not always invoke when the child is saved. Locally(mac os), it works as expected, all three types of changes are tracked and saved to

@PreUpdate doesn't save parent object when it's updated

由 我们两清 提交于 2021-02-04 14:08:50
问题 I have two entities with relation one to many. Parent can have several Child entity instances. I added a field to the parent that stores the date of children modifications( childrenLastModifiedDate ). To maintain that, I added method: @PrePersist @PreUpdate @PreRemove private void handle() { parent.setChildrenLastModifiedDate(now()); } Here is the problem. It's not always invoke when the child is saved. Locally(mac os), it works as expected, all three types of changes are tracked and saved to

@PreUpdate doesn't save parent object when it's updated

由 风格不统一 提交于 2021-02-04 14:08:47
问题 I have two entities with relation one to many. Parent can have several Child entity instances. I added a field to the parent that stores the date of children modifications( childrenLastModifiedDate ). To maintain that, I added method: @PrePersist @PreUpdate @PreRemove private void handle() { parent.setChildrenLastModifiedDate(now()); } Here is the problem. It's not always invoke when the child is saved. Locally(mac os), it works as expected, all three types of changes are tracked and saved to

@PreUpdate doesn't save parent object when it's updated

由 [亡魂溺海] 提交于 2021-02-04 14:07:57
问题 I have two entities with relation one to many. Parent can have several Child entity instances. I added a field to the parent that stores the date of children modifications( childrenLastModifiedDate ). To maintain that, I added method: @PrePersist @PreUpdate @PreRemove private void handle() { parent.setChildrenLastModifiedDate(now()); } Here is the problem. It's not always invoke when the child is saved. Locally(mac os), it works as expected, all three types of changes are tracked and saved to

Hibernate : org.hibernate.loader.MultipleBagFetchException: cannot simultaneously fetch multiple bags

由 对着背影说爱祢 提交于 2021-02-04 07:13:39
问题 Entity classes Customer @Entity @Table(name="Custumer") public class Custumer implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name="id") private Long id; @Column(name="name",unique = true) private String name; @Column(name="Email",unique = true) private String Email; @Column(name = "Coins") private Double coins; @ManyToMany(fetch = FetchType.EAGER,cascade = CascadeType.ALL) private List<ShippingAdress> shippingAdress = new ArrayList<ShippingAdress>();

javax.persistence.TransactionRequiredException: no transaction is in progress, @Transactional(propagation=Propagation.REQUIRED) not working

由 |▌冷眼眸甩不掉的悲伤 提交于 2021-02-04 05:04:10
问题 Whenever I try to entityManager.flush() I get the error mentioned on title. That is interesting that all my models have been created properly on MySql during application start up. I have read several questions with similar exception and basically all of them point to use/change @Transaction somehow. Any suggestion or even a scratch idea about what to check will be highly appreciated. I don't think it is really relevant but let me inform btw: I am using WebSphere Liberty Profile + MySql. where

javax.persistence.TransactionRequiredException: no transaction is in progress, @Transactional(propagation=Propagation.REQUIRED) not working

由 爱⌒轻易说出口 提交于 2021-02-04 05:03:23
问题 Whenever I try to entityManager.flush() I get the error mentioned on title. That is interesting that all my models have been created properly on MySql during application start up. I have read several questions with similar exception and basically all of them point to use/change @Transaction somehow. Any suggestion or even a scratch idea about what to check will be highly appreciated. I don't think it is really relevant but let me inform btw: I am using WebSphere Liberty Profile + MySql. where

Gradle 比 Maven 好为什么用的人少

由 好久不见. 提交于 2021-02-04 01:40:53
都是编译工具，各有各的优势。 貌似常用的几个大项目都将构建移到了 Gradle，例如 Hibernate，Spring。 相对来说也会增加不少 Gradle 的人气吧。 因为不怎么调整编译，很多时候感觉都差不多，但是 Gradle 的学习曲线确实比 Maven 要陡峭一点点。可以说是成也萧何败也萧何，Gradle 就是因为灵活性比 Maven 要好，所以开发插件，提供新的功能就要比 Maven 要容易。 同时 Gradle 也使用 Maven 的中央仓库，很多时候可以说是站在巨人的肩膀上面，在 Gradle 的设计时候就已经考虑过了 Maven 已经存在的一些问题。 就是因为 Gradle 设计灵活性又导致了学习起来难学习。 不太喜欢的是 Gradle 的包结构，当包下载下来后会打上标签，有时候都不知道包下哪里去了，Maven 这里比较直观，就直接能找到。 尤其是在调试的时候，希望能够删掉一个包，使用一个已经编译好的包替代下，直接拷贝过去就好了，使用 Gradle 在这里有点惆怅。 喜欢 Gradle 是，Gradle 比较容易出文档，其实这个问题也不是大问题，Gradle 可以直接编译 Asciidoctor 的文档，然后输出各种格式。 下载速度来说，一般大公司可能都会有 Central Maven 的镜像，感觉上差别不是非常多。 https://www.ossez.com/t
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