T
- statistic typepublic class SemiExpiringSampledStatistic<T extends Number> extends Object
Constructor and Description |
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SemiExpiringSampledStatistic(ValueStatistic<T> source,
ScheduledExecutorService executor,
int historySize,
long historyTime,
TimeUnit historyTimeUnit)
Creates a new semi-expiring statistic.
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Modifier and Type | Method and Description |
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boolean |
active()
Active.
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protected boolean |
expire(long expiry)
Expire.
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List<Timestamped<T>> |
history()
History.
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protected void |
start()
Start.
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protected void |
startStatistic()
Start statistic.
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protected void |
stopStatistic()
Stop statistic.
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protected void |
touch()
Touch.
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T |
value()
Value.
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public SemiExpiringSampledStatistic(ValueStatistic<T> source, ScheduledExecutorService executor, int historySize, long historyTime, TimeUnit historyTimeUnit)
source
- statistic sourceexecutor
- executor to use for samplinghistorySize
- size of sample historyhistoryTime
- period between sampleshistoryTimeUnit
- unit of period between samplespublic List<Timestamped<T>> history()
history
in interface SampledStatistic<T extends Number>
public final boolean active()
SampledStatistic
protected final void touch()
protected final void start()
protected final boolean expire(long expiry)
expiry
- the expiryprotected void stopStatistic()
protected void startStatistic()
public T value()
value
in interface SampledStatistic<T extends Number>
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