确定NHibernate的代理类 [英] Identifying NHibernate proxy classes

问题描述

我不是一个NHibernate的用户;我写了一个序列化工具库。用户登录功能请求，我应该处理NHibernate的代理类，对待他们一样的实际类型。此刻我的code被他们当作意外的继承，并抛出异常。

I'm not an NHibernate user; I write a serialization utility library. A user has logged a feature-request that I should handle NHibernate proxy classes, treating them the same as the actual type. At the moment my code is treating them as unexpected inheritance, and throwing an exception.

在code不会事先知道NHibernate的（包括未提及，但我不aftaid反射;-p的）

The code won't know in advance about NHibernate (including no reference, but I'm not aftaid of reflection ;-p)

有一个强大的/担保方式检测这些代理类型？显然的DataContractSerializer 处理这很好，所以我希望它是值得pretty的简单。或许有些接口或 [属性] 装修。

Is there a robust / guaranteed way of detecting such proxy types? Apparently DataContractSerializer handles this fine, so I'm hoping it is something pretty simple. Perhaps some interface or [attribute] decoration.

此外，反序列化过程;此刻，我将创建原始类型（而不是NHibernate的类型）。这是罚款，持久性的目的呢？或者是必需的代理类型？如果是后者;什么是需要创建代理类型的实例？

Also, during deserialization; at the moment I would be creating the original type (not the NHibernate type). Is this fine for persistence purposes? Or is the proxy type required? If the latter; what is required to create an instance of the proxy type?

推荐答案

您可以检测，如果一个类是NHibernate的代理通过其铸造（意料之中） INHibernateProxy 。

You can detect if a class is a NHibernate proxy by casting it to (unsurprisingly) INHibernateProxy.

如果你需要得到底层真实的对象，请使用：

If you need to get the underlying "real" object, use:

Session.GetSessionImplementation().PersistenceContext.Unproxy(proxiedObject)

您不必测试代理调用 Unproxy ;它返回原来的参数，如果它不是一个代理服务器。

You don't need to test for proxies to call Unproxy; it returns the original parameter if it's not a proxy.

编辑：我现在用不同的方法来获取潜在的对象，主要是为了解决延迟加载和继承：<一href="http://sessionfactory.blogspot.com/2010/08/hacking-lazy-loaded-inheritance.html">http://sessionfactory.blogspot.com/2010/08/hacking-lazy-loaded-inheritance.html

I now use a different approach to get the underlying object, mostly to work around lazy loading and inheritance: http://sessionfactory.blogspot.com/2010/08/hacking-lazy-loaded-inheritance.html

这篇关于确定NHibernate的代理类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！