启用多层次实体修订方法 [英] envers multi level entity revision howto

问题描述

用户有n个联系人.联系人可以具有本地化的注释(注释在联系人之间共享). Java Bean:

User have n Contacts. A Contact can have a localized Comment (Comments are shared between Contacts). Java Beans:

@Audited
@Entity
public class User {
    @OneToMany(fetch = FetchType.EAGER,
               cascade = CascadeType.ALL,
               orphanRemoval = true)
    Set<Context> contacts;
}

@Audited
@Entity
public class Contact {
    @ManyToOne(fetch = FetchType.EAGER,
               cascade = {
                          CascadeType.MERGE,
                          CascadeType.PERSIST,
                          CascadeType.REFRESH})
    Comment comment;
}

@Audited
@Entity
public class Comment {
    String de;
    String en;
    String fr;
}

如果我更改了联系人(Contact.comment)的德语本地化(Comment.de)，则将创建一个新修订，但不适用于用户.如果我向envers请求用户修订，因为用户和联系人之间的关系没有更改，我将永远不会看到此级别2更改"，只有联系人注释中的德语字符串发生了更改.

If I change the german localization (Comment.de) of a contact (Contact.comment) then this will create a new revision but not for User. If I ask envers for User Revisions I will never see this "Level 2 change" because the relation between User and Contact was not change, only the german string in the Contact Comment was changed.

但是我想在用户历史记录中看到一个新条目(联系人XYZ的德语注释已更改).

But I want see in the User History a new Entry (Changed german comment for contact XYZ).

我该怎么做? :D

Thxs

推荐答案

也许一个想法是使用自定义修订日志(http://docs.jboss.org/hibernate/orm/4.1/devguide/zh-CN /html/ch15.html#envers-revisionlog)中存储与更改相关的根"实体.这可能不是最有效，但是取决于您的域模型，这可能就是您想要的.

Maybe an idea would be to use a custom revision log (http://docs.jboss.org/hibernate/orm/4.1/devguide/en-US/html/ch15.html#envers-revisionlog) in which you store the "root" entity/entities for which the change is relevant. This may not be the most efficient but depending on your domain model, this may be what you want.

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