如何在 nHiberate 中创建只读会话? [英] how to create a readonly session in nHiberate?

问题描述

是否可以在 nHibernate 中创建只读连接?

Is it possible to creat a readonly connection in nHibernate ?

只读:其中 nHibernate 不会隐式或显式地清除对底层数据库的任何更改.

Read-only : where nHibernate will not flush out any changes to the underlying database implicitly or explicitly.

关闭 nhibernate 连接时，它会自动清除对持久对象的更改.

When closing a nhibernate connection it does automatically flush out the changes to the persistent object.

将刷新模式设置为 never 是一种方法 - 但是可逆的(即某些代码可以重置刷新模式).

Setting the flush mode to never is one way - but is reversable (i.e some code can reset the flush mode).

推荐答案

我想您已经找到了解决方案，将刷新模式设置为从不.是的，它是可变的，但即使不是，代码也可以简单地创建另一个具有不同刷新模式的会话.

I think you've already found the solution, setting flush mode to never. Yes, it is changeable but even if it wasn't, code could simply create another session that had a different flush mode.

我认为适当的解决方案是建议使用session.FlushMode = FlushMode.Never只读，并通过使用连接强制到只有 SELECT 权限(或任何适合您的情况)的数据库.通过允许诸如 ReadOnlySessionFactory.Create() 之类的东西，维护单独的 ISessionFactory 工厂可能会有所帮助.

I think the appropriate solution is to suggest read-only with session.FlushMode = FlushMode.Never and enforce it by using a connection to the database that only has SELECT permissions (or whatever is appropriate for your situation). Maintaining separate ISessionFactory factories might help by allowing something like ReadOnlySessionFactory.Create().

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