org.rocksdb

类 Statistics

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.RocksObject

org.rocksdb.Statistics

所有已实现的接口:

java.lang.AutoCloseable

public class Statistics
extends RocksObject

Statistics to analyze the performance of a db. Pointer for statistics object is managed by Options class.

字段概要

从类继承的字段 org.rocksdb.RocksObject

nativeHandle_

从类继承的字段 org.rocksdb.AbstractImmutableNativeReference

owningHandle_

构造器概要

构造器

构造器和说明
Statistics()
Statistics(java.util.EnumSet<HistogramType> ignoreHistograms)
Statistics(java.util.EnumSet<HistogramType> ignoreHistograms, Statistics otherStatistics)
Statistics(Statistics otherStatistics)

方法概要

限定符和类型	方法和说明
protected void	disposeInternal(long handle)
long	getAndResetTickerCount(TickerType tickerType) Get the count for a ticker and reset the tickers count.
HistogramData	getHistogramData(HistogramType histogramType) Gets the histogram data for a particular histogram.
java.lang.String	getHistogramString(HistogramType histogramType) Gets a string representation of a particular histogram.
long	getTickerCount(TickerType tickerType) Get the count for a ticker.
void	reset() Resets all ticker and histogram stats.
void	setStatsLevel(StatsLevel statsLevel) Sets the stats level.
StatsLevel	statsLevel() Gets the current stats level.
java.lang.String	toString() String representation of the statistic object.

从类继承的方法 org.rocksdb.RocksObject

disposeInternal, getNativeHandle

从类继承的方法 org.rocksdb.AbstractImmutableNativeReference

close, disOwnNativeHandle, isOwningHandle

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

Statistics

public Statistics()

Statistics

public Statistics(Statistics otherStatistics)

Statistics

public Statistics(java.util.EnumSet<HistogramType> ignoreHistograms)

Statistics

public Statistics(java.util.EnumSet<HistogramType> ignoreHistograms,
                  Statistics otherStatistics)

方法详细资料

statsLevel

public StatsLevel statsLevel()

Gets the current stats level.

返回:

The stats level.

setStatsLevel

public void setStatsLevel(StatsLevel statsLevel)

Sets the stats level.

参数:

statsLevel - The stats level to set.

getTickerCount

public long getTickerCount(TickerType tickerType)

Get the count for a ticker.

参数:

tickerType - The ticker to get the count for

返回:

The count for the ticker

getAndResetTickerCount

public long getAndResetTickerCount(TickerType tickerType)

Get the count for a ticker and reset the tickers count.

参数:

tickerType - The ticker to get the count for

返回:

The count for the ticker

getHistogramData

public HistogramData getHistogramData(HistogramType histogramType)

Gets the histogram data for a particular histogram.

参数:

histogramType - The histogram to retrieve the data for

返回:

The histogram data

getHistogramString

public java.lang.String getHistogramString(HistogramType histogramType)

Gets a string representation of a particular histogram.

参数:

histogramType - The histogram to retrieve the data for

返回:

A string representation of the histogram data

reset

public void reset()
           throws RocksDBException

Resets all ticker and histogram stats.

抛出:

RocksDBException - if an error occurs when resetting the statistics.

toString

public java.lang.String toString()

String representation of the statistic object.

覆盖:

toString 在类中 java.lang.Object

disposeInternal

protected final void disposeInternal(long handle)

指定者:

disposeInternal 在类中 RocksObject