Description. This method is used to determine whether there is an error associated with this event operation.
This method is deprecated in NDB 7.4.3, and is subject to removal
in a future release. In NDB 7.4.3 and later, you should instead
to determine the event type. See
Section 22.214.171.124, “Event::TableEvent”.
int hasError ( void ) const
Return value. If event loss has taken place, then this method returns 0; otherwise, it returns 1.