EventMachine则为编写网络客户端和服务器之间的事件处理过程，提供众多函数类库的功能调用。

EventMachine is a library for writing network clients and servers and facilitates event processing.

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它包括在事件处理过程中收集的、基于 Servlet 的新数据视图，用以验证事件处理和度量。

This includes a new servlet based view of data collected during event processing, to verify event processing and metrics.

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为了确保事件和动作的持续性，Business Events可以执行持久化操作或在事件处理过程中的几个不同时间点从磁盘读取数据。

To ensure the durability of events and actions, Business events can persist or read data from disk at several points during event processing.

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