Debug Esper Statements

Debugging Esper Statements can be tricky as Esper code is not executed in a procedural way.

To help with debugging Esper statements a TestSubscriber can be added to an Esper statements, which will cause selected values of a Statement to be printed to the Console.

@Name('TEST')
@Subscriber(className='ch.algotrader.esper.subscriber.TestSubscriber')
@SimulationOnly
select
  valueA,
  valueB,
  valueC
from
  TestEvent;