The trouble with this approach is that your message handler is called many times to notify you of events that are not relevant for your plug-in.

这种方法的弊端是，消息处理程序将被多次调用来向您通知事件，而这些事件可能与您的插件无关。

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In other words, you require the Notification Handler to not only notify the users but also drive the corresponding peer-to-peer workflow.

换句话说，您需要通知处理器的支持，它不仅用来向用户通报，而且也管理相应的对等工作流程。

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When a match occurs, the trigger Manager USES a trigger handler to format the notification and notify the correct user through the UND.

发生匹配时，Trigger Manager使用触发器处理程序格式化通知的内容并通过UND通知正确的用户。

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