org.apache.hadoop.fs.s3a.statistics.impl

Class CountingChangeTracker

java.lang.Object

org.apache.hadoop.fs.s3a.statistics.impl.CountingChangeTracker

All Implemented Interfaces:

ChangeTrackerStatistics

public class CountingChangeTracker
extends Object
implements ChangeTrackerStatistics

A change tracker which increments an atomic long.

Constructor Summary

Constructors

Constructor and Description
CountingChangeTracker()
CountingChangeTracker(AtomicLong counter)

Method Summary

Modifier and Type	Method and Description
long	getVersionMismatches() How many version mismatches have occurred.
void	versionMismatchError() A version mismatch was detected.

Methods inherited from class java.lang.Object

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

Constructor Detail

CountingChangeTracker

public CountingChangeTracker(AtomicLong counter)

CountingChangeTracker

public CountingChangeTracker()

Method Detail

versionMismatchError

public void versionMismatchError()

Description copied from interface: ChangeTrackerStatistics

A version mismatch was detected.

Specified by:

versionMismatchError in interface ChangeTrackerStatistics

getVersionMismatches

public long getVersionMismatches()

Description copied from interface: ChangeTrackerStatistics

How many version mismatches have occurred.

Specified by:

getVersionMismatches in interface ChangeTrackerStatistics

Returns:

counter of mismatches.