org.apache.cassandra.cache

Class InstrumentingCache<K,V>

java.lang.Object

org.apache.cassandra.cache.InstrumentingCache<K,V>

Direct Known Subclasses:

AutoSavingCache

public class InstrumentingCache<K,V>
extends java.lang.Object

Wraps an ICache in requests + hits tracking.

Constructor Summary

Constructors

Constructor and Description
InstrumentingCache(java.lang.String type, ICache<K,V> map)

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(K key)
V	get(K key)
long	getCapacity()
V	getInternal(K key)
CacheMetrics	getMetrics()
java.util.Iterator<K>	hotKeyIterator(int n)
java.util.Iterator<K>	keyIterator()
void	put(K key, V value)
boolean	putIfAbsent(K key, V value)
void	remove(K key)
boolean	replace(K key, V old, V value)
void	setCapacity(long capacity)
int	size()
long	weightedSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

InstrumentingCache

public InstrumentingCache(java.lang.String type,
                          ICache<K,V> map)

Method Detail

put

public void put(K key,
                V value)

putIfAbsent

public boolean putIfAbsent(K key,
                           V value)

replace

public boolean replace(K key,
                       V old,
                       V value)

get

public V get(K key)

getInternal

public V getInternal(K key)

remove

public void remove(K key)

getCapacity

public long getCapacity()

setCapacity

public void setCapacity(long capacity)

size

public int size()

weightedSize

public long weightedSize()

clear

public void clear()

keyIterator

public java.util.Iterator<K> keyIterator()

hotKeyIterator

public java.util.Iterator<K> hotKeyIterator(int n)

containsKey

public boolean containsKey(K key)

getMetrics

public CacheMetrics getMetrics()