Add access restriction to multiple Web resources using the J2EE security model.
利用J2EE安全性模型向多个Web资源添加访问限制。
LightSpeed 2.0 includes a visual domain model designer integrated with visual Studio 2008, support for LINQ and the ability to access multiple databases concurrently.
LightSpeed 2.0包含一个和Visual Studio 2008相整合的可视化域模型设计器，支持LINQ，并可以同步访问多个数据库。
What's interesting with this model is that multiple readers are permitted access to the data at one time, but only one writer.
这个模型有趣的地方在于允许多个线程同时访问相同数据，但同一时刻只允许一个线程写入数据。
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