红帽全球峰会258.5. Message Body
Camel 对 IN 正文的规划问题，对其进行解决，并在 OUT 正文（自 v 2.16）上返回它（自 v 2.16）支持以下用例：
- 如果正文是解决方案的实例，则会使用 solverId 识别的 solverId 以及异步或异步标识的 solver 解决它。
- 如果正文是 ProblemFactChange 实例，则它将触发 addProblemFactChange。如果处理是异步的，它将等待 till 为EveryProblemFactChangeProcessed，然后再返回结果。
- 如果正文没有上述类型，则制作者将从 solverId 标识的 solver 返回最佳结果。
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