事件选择器语法是W3C XPath的子集(这与公共基础事件规范将事件序列化为XML文档来描述事件是不一致的)。

The event selector syntax is a subset of the W3C XPath (this is not a coincidence as the Common Base event specification describes events in terms of their serialization as XML documents).

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这样，上述序列中的第二和第三个Sell事件将无法通过筛选器，这就是您希望的结果。

The second and third Sell events in the sequence described above would then fail the filter, which is what you want. To add this condition to the filter, do the following.

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本文还解释了构成 ORB 间通信的高级事件序列，以及 NodeAgent 在客户端与服务器之间的 ORB 通信部分中所起的作用。

The high level sequence of events that make up inter-ORB communications was also explained, along with the role that the NodeAgent plays in the part of ORB communication between clients and servers.

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