For each listener you have to specify event type, which you are interested in.
There are four types of file events:
Event of this type occurs, when the observed file is created or copied from another location between two checks. Please keep in mind, that event of this type occurs immediately when new file is detected, regardless it is complete or not. Thus task which may need complete file is executed when file is still incomplete. Recommended approach is to save file to the different location and when it is complete, move/rename to observed location where CloverETL Server may detect it. File moving/renaming should be atomic operation.
Event of this type does not occur when the file has been updated (change of timestamp or size) between two checks. Appearance means that the file didn't exist during previous check and it exists now, during current check.
Event of this type occurs, when observed file is deleted or moved to another location between two checks.
Event of this type occurs when the size of the observed file has changed between two checks. Event of this type is never produced when file is created or removed. File must exist during both checks.
Event of this type occurs, when change time of observed file has changed between two checks. Event of this type is never produced when file is created or removed. File must exist during both checks.