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 java.lang.Object
implements MetricsProviders

Constructor Summary

Constructors

Constructor	Description
AbstractMetricsProviders()

Method Summary

Modifier and Type	Method	Description
protected abstract R	map(SSTableReader r)
protected <T extends java.lang.Number> GaugeProvider<T>	newGaugeProvider(java.lang.String name, java.util.function.Function<java.lang.Iterable<R>,T> combiner)
protected <T extends java.lang.Number> GaugeProvider<T>	newGaugeProvider(java.lang.String name, T neutralValue, java.util.function.Function<R,T> extractor, java.util.function.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 Detail

AbstractMetricsProviders

public AbstractMetricsProviders()

Method Detail

newGaugeProvider

protected final <T extends java.lang.Number> GaugeProvider<T> newGaugeProvider(java.lang.String name,
                                                                               java.util.function.Function<java.lang.Iterable<R>,T> combiner)

newGaugeProvider

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

map

protected abstract R map(SSTableReader r)