com.orientechnologies.orient.core.storage.impl.local.statistic

Class OSessionStoragePerformanceStatistic.WALCountersHolder

java.lang.Object

com.orientechnologies.orient.core.storage.impl.local.statistic.OSessionStoragePerformanceStatistic.WALCountersHolder

All Implemented Interfaces:

OSessionStoragePerformanceStatistic.CountersHolder<OSessionStoragePerformanceStatistic.WALCountersHolder>

Enclosing class:

OSessionStoragePerformanceStatistic

public static class OSessionStoragePerformanceStatistic.WALCountersHolder
extends Object
implements OSessionStoragePerformanceStatistic.CountersHolder<OSessionStoragePerformanceStatistic.WALCountersHolder>

Contains data about write ahead log performance

Constructor Summary

Constructors

Constructor and Description
WALCountersHolder()

Method Summary

Modifier and Type	Method and Description
void	clean() Resets all performance characteristics to default values.
long	getFlushTime()
long	getLogTime()
long	getStartAOTime()
long	getStopAOTime()
void	pushData(OSessionStoragePerformanceStatistic.WALCountersHolder holder) Accumulates data in current and passed in containers and push data back to passed in container.
ODocument	toDocument() Serializes performance data as values of fields of returned document.

Methods inherited from class java.lang.Object

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

Constructor Detail

WALCountersHolder

public WALCountersHolder()

Method Detail

clean

public void clean()

Description copied from interface: OSessionStoragePerformanceStatistic.CountersHolder

Resets all performance characteristics to default values.

Specified by:

clean in interface OSessionStoragePerformanceStatistic.CountersHolder<OSessionStoragePerformanceStatistic.WALCountersHolder>

pushData

public void pushData(OSessionStoragePerformanceStatistic.WALCountersHolder holder)

Description copied from interface: OSessionStoragePerformanceStatistic.CountersHolder

Accumulates data in current and passed in containers and push data back to passed in container.

Specified by:

pushData in interface OSessionStoragePerformanceStatistic.CountersHolder<OSessionStoragePerformanceStatistic.WALCountersHolder>

getLogTime

public long getLogTime()

Returns:

Average time which is spent on logging of single record or -1 if value is undefined.

getStopAOTime

public long getStopAOTime()

Returns:

Average time which is spent on logging of "stop atomic operation" record or -1 if value is undefined.

getStartAOTime

public long getStartAOTime()

Returns:

Average time which is spent on logging of "start atomic operation" record or -1 if value is undefined.

getFlushTime

public long getFlushTime()

Returns:

Average time which is spent on flush of WAL cache or -1 if value is undefined.

toDocument

public ODocument toDocument()

Description copied from interface: OSessionStoragePerformanceStatistic.CountersHolder

Serializes performance data as values of fields of returned document.

Specified by:

toDocument in interface OSessionStoragePerformanceStatistic.CountersHolder<OSessionStoragePerformanceStatistic.WALCountersHolder>

Returns:

Document filled with performance data