Event and Event processing

Event: is an object which changes state of objects. As long as the object state is not changed... event is not occured.

Event streaming: events at high volume, periodically, from different sources, neve ending, time ordered.

• Simple event: Irregular flow, manageable volume
• Streaming: Continuous flow, Need to keep up
• High Volume: Possiblu bursty, Need to handle worst case.

Event processing network components:

• Event adapter:
• Event channel:
• Event Cache:
• Event processer

Event processor node processing patterns:

• Event Filtering
• Event correlation and aggregation
• Event pattern matching
• Synthetic or business event