Package org.apache.cassandra.io.sstable

Class AbstractMetricsProviders<R extends SSTableReader>

java.lang.Object

org.apache.cassandra.io.sstable.AbstractMetricsProviders<R>

All Implemented Interfaces:

MetricsProviders

Direct Known Subclasses:

BloomFilterMetrics, IndexSummaryMetrics, KeyCacheMetrics

public abstract class AbstractMetricsProviders<R extends SSTableReader>
extends Object
implements MetricsProviders

Constructor Summary

Constructors

Constructor	Description
AbstractMetricsProviders()

Method Summary

Modifier and Type	Method	Description
protected abstract R	map(SSTableReader r)
protected final <T extends Number> GaugeProvider<T>	newGaugeProvider(String name, Function<Iterable<R>,T> combiner)
protected final <T extends Number> GaugeProvider<T>	newGaugeProvider(String name, T neutralValue, Function<R,T> extractor, BiFunction<T,T,T> combiner)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.io.sstable.MetricsProviders

getGaugeProviders

Constructor Details

AbstractMetricsProviders

public AbstractMetricsProviders()

Method Details

newGaugeProvider

protected final <T extends Number> GaugeProvider<T> newGaugeProvider(String name,
 Function<Iterable<R>,T> combiner)

newGaugeProvider

protected final <T extends Number> GaugeProvider<T> newGaugeProvider(String name,
 T neutralValue,
 Function<R,T> extractor,
 BiFunction<T,T,T> combiner)

map

protected abstract R map(SSTableReader r)