History Access Example

[manakamu]

I am trying to understand the Event History Access Example.
The sample has two folders (AreaAirConditioner/AreaFurance).
When the Start/Stop method of the object in each folder is executed, the event occures.
When I get Historical Events, HistoryManagerCache::readEvents() can distinguish which folder is event source because AreaAirConditioner/AreaFurance are separated into separated folder.

But how can I identify the event source if the two folders are not separated and put into a same folder?
Is it mandatory to separate folders for each event?

[manakamu]

Event History Access Example can be found at the following URL.
https://documentation.unified-automatio ... moServer_6