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GetException
函数功能
UDF获取异常，如果开启了异常捕获功能，需要在UDF中Proc函数开始位置尝试捕获异常。
函数原型
bool GetException(int32_t &expCode, uint64_t &userContextId);
参数说明
参数名 |
输入/输出 |
描述 |
|---|---|---|
expCode |
输入 |
被捕获异常中用户自定义的异常的错误码。 |
userContextId |
输入 |
被捕获异常中用户自定义的异常的上下文ID，用于标识该上报的异常，保证其他UDF获取捕捉到异常后可以根据该ID值感知到具体产生异常的数据批次。 |
返回值
是否存在异常。
- ture：存在异常被捕获。
- false：不存在异常需要被捕获。
异常处理
无
约束说明
如果当前dataflow graph未通过SetExceptionCatch使能异常上报，GetException返回值固定为false。
父主题： MetaRunContext类
