The direction of this execution context parameter should be set as IN_OUT, since the information it carries goes back and forth between the calling component and the rule service.
这个执行上下文参数的方向应设置为IN_OUT，因为它携带的信息在调用方组件和规则服务之间来回传送。
Encapsulated context object provided a way of encapsulating the execution context of service and framework elements.
封装上下文对象提供了一个将服务执行上下文和框架要素封装起来的方法。
Figure 8 shows a prototypical section of the rule flow that would make use of this execution context parameter.
图8显示了会利用该执行上下文参数的规则流的一个原型部分。
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