Gemfire从cqEvent获取错误

Question

我在某个区域注册了cqListener。我怎么能得到实际的错误为什么onError已经从方法const gemfire::CqEvent& cqEvent的参数发生？

我检查了文档，但他们似乎没有任何方法可以在CqEvent类中实际检索到可能的错误。

Answer 1

@Alex 亚历嗨， 看什么文件说：

/** 
    * This method is invoked when there is an error during CQ processing. 
    * The error can appear while applying query condition on the event. 
    * e.g if the event doesn't has attributes as specified in the CQ query. 
    * This event does contain an error. The newValue may or may not be 
    * available, and will be NULLPTR if not available. 
    */ 
    virtual void onError(const CqEvent& aCqEvent); 

它明确提到 “此事件都包含一个错误”。而CqEvent也不包含获取错误的方法。