Package com.apple.foundationdb
Class MapEventKeeper
- java.lang.Object
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- com.apple.foundationdb.MapEventKeeper
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- All Implemented Interfaces:
EventKeeper
public class MapEventKeeper extends java.lang.Object implements EventKeeper
A simple map-based EventKeeper. This class is thread-safe(per theEventKeeper
spec). It holds all counters in memory;
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Nested Class Summary
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Nested classes/interfaces inherited from interface com.apple.foundationdb.EventKeeper
EventKeeper.Event, EventKeeper.Events
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Constructor Summary
Constructors Constructor Description MapEventKeeper()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
count(EventKeeper.Event event, long amt)
Count the number of events which occurred.long
getCount(EventKeeper.Event event)
Get the number of events which occurred since this timer was created.long
getTimeNanos(EventKeeper.Event event)
Get the amount of time taken by this event, in nanoseconds.void
timeNanos(EventKeeper.Event event, long nanos)
Count the time taken to perform an event, in nanoseconds.-
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.apple.foundationdb.EventKeeper
getTime, increment, time
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Method Detail
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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 interfaceEventKeeper
- Parameters:
event
- the event which occurredamt
- the number of times that even occurred
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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 thatevent.isTimeEvent()
should return true here.- Specified by:
timeNanos
in interfaceEventKeeper
- Parameters:
event
- the event which was timed (the event should be a time event).nanos
- the amount of time taken (in nanoseconds)
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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 interfaceEventKeeper
- 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
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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 interfaceEventKeeper
- 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.
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