Package com.apple.foundationdb

Class MapEventKeeper

  • All Implemented Interfaces:
    EventKeeper
    public class MapEventKeeper
extends java.lang.Object
implements EventKeeper
    A simple map-based EventKeeper. This class is thread-safe(per the EventKeeper spec). It holds all counters in memory;

    • Constructor Detail

      • MapEventKeeper

        public MapEventKeeper()

    • Method Detail

      • count

        public void count​(EventKeeper.Event event,
                  long amt)
        Description copied from interface: EventKeeper
        Count the number of events which occurred.
        Specified by:
        count in interface EventKeeper
        Parameters:
        event - the event which occurred
        amt - the number of times that even occurred

      • timeNanos

        public void timeNanos​(EventKeeper.Event event,
                      long nanos)
        Description copied from interface: EventKeeper
        Count the time taken to perform an event, in nanoseconds. Note that event.isTimeEvent() should return true here.
        Specified by:
        timeNanos in interface EventKeeper
        Parameters:
        event - the event which was timed (the event should be a time event).
        nanos - the amount of time taken (in nanoseconds)

      • getCount

        public long getCount​(EventKeeper.Event event)
        Description copied from interface: EventKeeper
        Get the number of events which occurred since this timer was created. If the event was never recorded, then this returns 0.
        Specified by:
        getCount in interface EventKeeper
        Parameters:
        event - the event to get the count for
        Returns:
        the number of times the event was triggered. If the event has never been triggered, then this returns 0

      • getTimeNanos

        public long getTimeNanos​(EventKeeper.Event event)
        Description copied from interface: EventKeeper
        Get the amount of time taken by this event, in nanoseconds.
        Specified by:
        getTimeNanos in interface EventKeeper
        Parameters:
        event - the event to get the time for
        Returns:
        the total time measured for this event, in nanoseconds. If the event was never recorded, return 0 instead.