Esper (software) (original) (raw)

Esper is an open-source Java-based software product for Complex event processing (CEP) and Event stream processing (ESP), that analyzes series of events for deriving conclusions from them. Esper extends the SQL-92 standard for its engine and enterprise framework, providing Aggregate function, Pattern matching, event windowing and joining. Esper implements Event-driven programming and event-driven architecture. Esper is a Java-based application but has been ported to the C# programming language and is available for the .NET Framework under the name NEsper.