Threadsafe和generic arraylist？ [英] Threadsafe and generic arraylist?

问题描述

我想有一个通用线程安全收集，我看到Arraylist可以很容易地通过其静态同步方法使用线程安全，但是我的错误是，这个ArrayList不是通用的，所以当我想使用我的对象我总是不得不施放他们。有更简单的方法吗？

I want to have a generic thread safe collection and I saw that the Arraylist can easily be used thread safe by its static Synchronized method but what bugs me is that this ArrayList is not generic so when I want to use my objects I always have to cast them. Is there an easier way to do this? Also other list types would be possible.

推荐答案

一点知识是一件危险的事情;-)是的，你可以使用Meta-骑士的建议，并使用 SyncRoot ，但你需要小心 - 这不是万灵药。请参阅来自Microsoft的BCL小组博客的此帖看看为什么它不像 SyncRoot 那么简单。来自该帖子的引用：

A little knowledge is a dangerous thing ;-) Yes, you could use Meta-Knight's suggestion and use SyncRoot, but you need to be careful - it's not a panacea. See this post from the BCL Team Blog from Microsoft to see why it's not as simple as SyncRoot. Quotes from that post:

我们的通用
集合的几个精明的用户观察到，我们不再
提供

A few astute users of our generic collections observed that we no longer provide a public SyncRoot property on ICollection<T>

的 SyncRoot



和

and

我认为我们最好强制
大致关于
同步，坦率地说，我们的通用
集合中的
SyncRoot 属性不提供任何值。

当然，这不是说它不能在任何情况下使用 - 你只需仔细考虑用例，而不是在汽车-pilot。

Of course, that's not to say it can't be used under any circumstances - you just have to think the use cases through carefully and not be on auto-pilot.

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