org.janusgraph.diskstorage.keycolumnvalue.scan

Class StandardScanMetrics

java.lang.Object

org.janusgraph.diskstorage.keycolumnvalue.scan.StandardScanMetrics

All Implemented Interfaces:

ScanMetrics

public class StandardScanMetrics
extends Object
implements ScanMetrics

Author:

Matthias Broecheler ([email protected])

Nested Class Summary

Nested classes/interfaces inherited from interface org.janusgraph.diskstorage.keycolumnvalue.scan.ScanMetrics

ScanMetrics.Metric

Constructor Summary

Constructors

Constructor and Description
StandardScanMetrics()

Method Summary

Modifier and Type	Method and Description
long	get(ScanMetrics.Metric metric) Get the value of a standard counter.
long	getCustom(String metric) Get the value of a custom counter.
void	increment(ScanMetrics.Metric metric) Increment a standard counter by 1.
void	incrementCustom(String metric) Like ScanMetrics.incrementCustom(String, long), except the delta is 1.
void	incrementCustom(String metric, long delta) Increment a custom counter by delta.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardScanMetrics

public StandardScanMetrics()

Method Detail

getCustom

public long getCustom(String metric)

Description copied from interface: ScanMetrics

Get the value of a custom counter. Only the effects of prior calls to ScanMetrics.incrementCustom(String) and ScanMetrics.incrementCustom(String, long) should be observable through this method, never the effects of prior calls to ScanMetrics.increment(org.janusgraph.diskstorage.keycolumnvalue.scan.ScanMetrics.Metric).

Specified by:

getCustom in interface ScanMetrics

Returns:

incrementCustom

public void incrementCustom(String metric,
                            long delta)

Description copied from interface: ScanMetrics

Increment a custom counter by delta. The effects of calls to method should only be observable through ScanMetrics.getCustom(String), never through ScanMetrics.get(org.janusgraph.diskstorage.keycolumnvalue.scan.ScanMetrics.Metric).

Specified by:

incrementCustom in interface ScanMetrics

Parameters:

metric - the name of the counter

delta - the amount to add to the counter

incrementCustom

public void incrementCustom(String metric)

Description copied from interface: ScanMetrics

Like ScanMetrics.incrementCustom(String, long), except the delta is 1.

Specified by:

incrementCustom in interface ScanMetrics

Parameters:

metric - the name of the counter to increment by 1

get

public long get(ScanMetrics.Metric metric)

Description copied from interface: ScanMetrics

Get the value of a standard counter.

Specified by:

get in interface ScanMetrics

Parameters:

metric - the standard counter whose value should be returned

Returns:

the value of the standard counter

increment

public void increment(ScanMetrics.Metric metric)

Description copied from interface: ScanMetrics

Increment a standard counter by 1.

Specified by:

increment in interface ScanMetrics

Parameters:

metric - the standard counter whose value will be increased by 1