因为我们具有一个两阶段提交操作，所以必须将该值设置为false。
Because we have a Two-Phase-Commit operation this value has to be set to false.
当您通过一个API方法操作joda类时，您必须捕捉该方法的返回值，因为您正在处理的实例不能被修改。
When you manipulate a Joda class through an API method, you must capture the method's return value because the instance you're manipulating cannot be modified.
服务器也必须为在响应客户机时使用的返回值和参数执行相同操作。
The server must do the same for the return value and the parameters that will be used in the response to the client.
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