This means that, at a minimum, the resource adapter must make start, commit or rollback, and end flows to the back end.
这意味着，资源适配器至少必须进行开始、提交或者回滚，并结束流程返回后端。
It could be the result of the resource adapter receiving some external stimulus from a back-end system. Or it could just be some internal event, possibly even timer driven.
它可以是资源适配器接收到后端系统的一些外部刺激之后的结果，也可以仅仅是一些内部事件，甚至可能是由计时器驱动的事件。
The terms adapter and connector are often used interchangeably because you use an adapter to connect to a back-end system.
术语适配器和连接器通常是交替使用的，因为您将使用适配器连接到后端系统。
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