Interface QUEUE.Observer

public boolean addingToDownVector(Event evt,
                                  int num_events)

Called before event is added. Blocks until call returns.

Parameters:

evt - The event

num_events - The number of events in the down vector before this event is added

Returns:

boolean True if event should be added. False if it should be discarded

public boolean addingToUpVector(Event evt,
                                int num_events)

Called before event is added. Blocks until call returns.

Parameters:

evt - The event

num_events - The number of events in the up vector before this event is added

Returns:

boolean True if event should be added. False if it should be discarded