在包级别注释中使用 @GenericGenerator [英] Using @GenericGenerator in a package level annotation

问题描述

我正在尝试在包级别创建一个 @GenericGenerator 注释，以便包中的所有实体都可以使用它.

I'm trying to create a @GenericGenerator annotation at the package level so it can be used by all the entities in the package.

1) 我有一个带有注释的 package-info.java 类:

1) I have a package-info.java class with the annotation:

@org.hibernate.annotations.GenericGenerator(name="unique_id", strategy="uuid")  
package com.sample.model;

2) 在同一个包中，我有一个具有以下属性的实体:

2) In that same package, I have an entity with the following attribute:

@Id  
@GeneratedValue(generator="unique_id")  
@Column(name="userid")  
public String userID() {  
    return userID;  
}  

这会导致异常Unknown Id.generator: unique_id".如果我在实体类中包含 @GenericGenerator 注释，它工作正常.但是，我想将其移动到包级别，以便我可以在其他实体中重用它.

This is resulting in an exception "Unknown Id.generator: unique_id". If I include the @GenericGenerator annotation in the entity class, it works fine. However, I want to move this to the package level so I can reuse it in other entities.

断开连接的任何想法?

谢谢！

推荐答案

我知道这篇文章可能很旧......但我搜索了那个问题的解决方案，我找到了一个对我有用的解决方案.所以我会把它贴在这里，以防它对某人有帮助:

I know that this post may be old ... but I searched for the solution of that problem and I found a solution that worked for me. So I'll post it here in case it would be helpful for someone :

我忘记在 cfg.xml 中添加包级别信息

I forgot to add the package level information in the cfg.xml

也许您应该在 cfg.xml 中添加这一行:

Maybe you should add this line in your cfg.xml :

<mapping package="com.sample.model"/>

它对我有用:)

这篇关于在包级别注释中使用 @GenericGenerator的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！