如何使用 ColdFusion ORM 映射基类? [英] How do you map a base class using ColdFusion ORM?

问题描述

我有两个组件，一个基础 Entity 组件:

I have two components, a base Entity component:

<cfcomponent persistent="true">
    <cfproperty name="Id" fieldtype="id" generator="native">
</cfcomponent>

还有一个扩展它的 Client 组件:

And a Client component that extends it:

<cfcomponent persistent="true" extends="Entity">
    <cfproperty name="FirstName">
    <cfproperty name="LastName">
</cfcomponent>

但是，当我尝试创建 Client 的实例时，我收到一条错误消息，指出它们被映射为两个不同的表.我知道 Hibernate 具有忽略基类的能力，但是我将如何使用 ColdFusion 的标签来做到这一点，或者我是否必须回退到 HBM 映射来实现此功能?

However, when I try to create an instance of Client, I get an error that says that they're being mapped as two different tables. I know Hibernate has the ability to ignore a base class, but how would I do it with ColdFusion's tags, or do I have to fall back to HBM mappings for this feature?

附录:从 Entity 中删除 persistent="true" 也不起作用，Client 将表现得好像没有如果我这样做，有一个 Id 属性.

Addendum: Removing the persistent="true" from Entity doesn't work either, Client will act as if it doesn't have an Id property if I do so.

推荐答案

在您的基础Entity"类中，尝试删除 persistent="true" 并添加 mappedSuperClass="true".

In your base "Entity" class try removing persistent="true" and adding mappedSuperClass="true".

<cfcomponent mappedSuperClass="true">
    <cfproperty name="Id" fieldtype="id" generator="native">
</cfcomponent>

您需要将 9.0.1 更新应用到 ColdFusion.

You need to have applied the 9.0.1 update to ColdFusion.

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