Package org.apache.cassandra.io.sstable.keycache

Class KeyCache

java.lang.Object

org.apache.cassandra.io.sstable.keycache.KeyCache

public class KeyCache
extends Object

A simple wrapper of possibly global cache with local metrics.

Field Summary

Fields

Modifier and Type	Field	Description
static final KeyCache	NO_CACHE

Constructor Summary

Constructors

Constructor	Description
KeyCache(InstrumentingCache<KeyCacheKey,AbstractRowIndexEntry> cache)

Method Summary

Modifier and Type	Method	Description
AbstractRowIndexEntry	get(KeyCacheKey key, boolean updateStats)
long	getHits()
long	getRequests()
boolean	isEnabled()
void	put(KeyCacheKey cacheKey, AbstractRowIndexEntry info)

Methods inherited from class java.lang.Object

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

Field Details

NO_CACHE

public static final KeyCache NO_CACHE

Constructor Details

KeyCache

public KeyCache(@Nullable
 InstrumentingCache<KeyCacheKey,AbstractRowIndexEntry> cache)

Method Details

getHits

public long getHits()

getRequests

public long getRequests()

put

public void put(@Nonnull
 KeyCacheKey cacheKey,
 @Nonnull
 AbstractRowIndexEntry info)

get

@Nullable
public AbstractRowIndexEntry get(KeyCacheKey key,
 boolean updateStats)

isEnabled

public boolean isEnabled()