[ptp-dev] listener interface clarification

[Feiyi Wang <fwang2@xxxxxxxx>]

Can someone help to clarify the listener interface?


If I understand it correctly, IQueueListener gives you information about 
changes made to queue itself, such as add or remove a queue, and 
IQueueChildListener gives you information about changes made to jobs 
associated with the queue - for example, add or remove a job.
	
If that is the case, what about IJobListener - it handles 
JobChangeEvent,  isn't adding or removing a job also Job change event?

How do I decide which interface to use?

Thanks

Feiyi