注册上下文工厂指定的数据上下文。

Registers the data context that is specified by a context factory.

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可以建立多个数据上下文？

OK to establish multiple data contexts?

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这包括数据上下文中类似元数据的更改历史或者诸如更新、创建、删除等信息。

This includes metadata-like change history or information on the context of the data, such as update, create, delete, and so on.

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