org.apache.cassandra.cache

Class ChunkCache

java.lang.Object

org.apache.cassandra.cache.ChunkCache

All Implemented Interfaces:

com.github.benmanes.caffeine.cache.AsyncCacheLoader<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>, com.github.benmanes.caffeine.cache.CacheLoader<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>, com.github.benmanes.caffeine.cache.RemovalListener<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>, CacheSize

public class ChunkCache
extends java.lang.Object
implements com.github.benmanes.caffeine.cache.CacheLoader<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>, com.github.benmanes.caffeine.cache.RemovalListener<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>, CacheSize

Field Summary

Fields

Modifier and Type	Field and Description
static long	cacheSize
static ChunkCache	instance
CacheMissMetrics	metrics
static int	RESERVED_POOL_SPACE_IN_MB

Constructor Summary

Constructors

Constructor and Description
ChunkCache()

Method Summary

Modifier and Type	Method and Description
long	capacity()
void	close()
void	enable(boolean enabled)
void	invalidateFile(java.lang.String fileName)
void	invalidatePosition(FileHandle dfile, long position)
org.apache.cassandra.cache.ChunkCache.Buffer	load(org.apache.cassandra.cache.ChunkCache.Key key)
static RebuffererFactory	maybeWrap(ChunkReader file)
void	onRemoval(org.apache.cassandra.cache.ChunkCache.Key key, org.apache.cassandra.cache.ChunkCache.Buffer buffer, com.github.benmanes.caffeine.cache.RemovalCause cause)
void	setCapacity(long capacity)
int	size()
long	weightedSize()
RebuffererFactory	wrap(ChunkReader file)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.benmanes.caffeine.cache.CacheLoader

asyncLoad, asyncLoadAll, asyncReload, loadAll, reload

Field Detail

RESERVED_POOL_SPACE_IN_MB

public static final int RESERVED_POOL_SPACE_IN_MB

See Also:

Constant Field Values

cacheSize

public static final long cacheSize

instance

public static final ChunkCache instance

metrics

public final CacheMissMetrics metrics

Constructor Detail

ChunkCache

public ChunkCache()

Method Detail

load

public org.apache.cassandra.cache.ChunkCache.Buffer load(org.apache.cassandra.cache.ChunkCache.Key key)
                                                  throws java.lang.Exception

Specified by:

load in interface com.github.benmanes.caffeine.cache.CacheLoader<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>

Throws:

java.lang.Exception

onRemoval

public void onRemoval(org.apache.cassandra.cache.ChunkCache.Key key,
                      org.apache.cassandra.cache.ChunkCache.Buffer buffer,
                      com.github.benmanes.caffeine.cache.RemovalCause cause)

Specified by:

onRemoval in interface com.github.benmanes.caffeine.cache.RemovalListener<org.apache.cassandra.cache.ChunkCache.Key,org.apache.cassandra.cache.ChunkCache.Buffer>

close

public void close()

wrap

public RebuffererFactory wrap(ChunkReader file)

maybeWrap

public static RebuffererFactory maybeWrap(ChunkReader file)

invalidatePosition

public void invalidatePosition(FileHandle dfile,
                               long position)

invalidateFile

public void invalidateFile(java.lang.String fileName)

enable

public void enable(boolean enabled)

capacity

public long capacity()

Specified by:

capacity in interface CacheSize

setCapacity

public void setCapacity(long capacity)

Specified by:

setCapacity in interface CacheSize

size

public int size()

Specified by:

size in interface CacheSize

weightedSize

public long weightedSize()

Specified by:

weightedSize in interface CacheSize