問題文
In a Mule application, what is the relationship between a flow, its event source, and its event processors?
選択肢
- A flow can contain neither a source nor any processors; it is only a label with no behavior, and nothing happens when the application gets a request.
- The event source and the event processors are the same component described by two interchangeable names, given that either one of them can start the flow.
- The event processors run first and create the flow, after which the event source is generated last and immediately deletes every processor that has just finished.
- An event source starts the flow by producing an event, and the event then passes through a sequence of event processors that act on it.