In data streaming each event is transmitting from one processing block to another once events arrive. For example, you have three events like this: You want to calculate the sum
Some behavior patterns in event stream are based on the fact that specific event hasn’t happened. Siddhi has in-built mechanism to capture when some event is not happened after another.
Siddhi is a language which belongs to the group of Streaming SQL languages, offering SQL-like approach to process data streams. This short code snippet shows one of the basics scenarios