Package org.apache.druid.client.cache

Class CachePopulatorStats

java.lang.Object

org.apache.druid.client.cache.CachePopulatorStats

public class CachePopulatorStats
extends Object

Thread safe collector of CachePopulator statistics, utilized CacheMonitor to emit cache metrics. Like the CachePopulator, this is used as a singleton. See DruidProcessingModule.getCachePopulator(com.fasterxml.jackson.databind.ObjectMapper, org.apache.druid.client.cache.CachePopulatorStats, org.apache.druid.client.cache.CacheConfig) which supplies either ForegroundCachePopulator or BackgroundCachePopulator, as configured, for more details.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CachePopulatorStats.Snapshot

Constructor Summary

Constructors

Constructor	Description
CachePopulatorStats()

Method Summary

Modifier and Type	Method	Description
void	incrementError()
void	incrementOk()
void	incrementOversized()
CachePopulatorStats.Snapshot	snapshot()

Methods inherited from class java.lang.Object

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

Constructor Details

CachePopulatorStats

public CachePopulatorStats()

Method Details

incrementOk

public void incrementOk()

incrementError

public void incrementError()

incrementOversized

public void incrementOversized()

snapshot

public CachePopulatorStats.Snapshot snapshot()