Processing Element: Detect Value Change

The processing element should be able to detect when a numeric property change from one configured value to another (example: result=0 -> result=5).

Required Input

• A numeric value

Configuration

• Value of last event (example: 0)
• Value of current event (example: 5)

Output 

•  Append Strategy (changeDetected: Boolean)

Module

• streampipes-processors-enrich-jvm

We have a new API for processors, so we only need one class (see:  [1] for an example)

PS.: There could also be more configurations to make the processor more generic

 [1] https://github.com/apache/incubator-streampipes-extensions/tree/dev/streampipes-processors-filters-jvm/src/main/java/org/apache/streampipes/processors/filters/jvm/processor/schema