org.apache.cassandra.cache
Interface ICache<K,V>

All Known Implementing Classes:

ConcurrentLinkedHashCache, SerializingCache

public interface ICache<K,V>

This is similar to the Map interface, but requires maintaining a given capacity and does not require put or remove to return values, which lets SerializingCache be more efficient by avoiding deserialize except on get.

Method Summary

int	capacity()
void	clear()
V	get(K key)
java.util.Set<K>	hotKeySet(int n)
boolean	isPutCopying()
java.util.Set<K>	keySet()
void	put(K key, V value)
void	remove(K key)
void	setCapacity(int capacity)
int	size()

Method Detail

capacity

int capacity()

setCapacity

void setCapacity(int capacity)

put

void put(K key,
         V value)

get

V get(K key)

remove

void remove(K key)

size

int size()

clear

void clear()

keySet

java.util.Set<K> keySet()

hotKeySet

java.util.Set<K> hotKeySet(int n)

isPutCopying

boolean isPutCopying()

Returns:

true if the cache implementation inherently copies the cached values; otherwise, the caller should copy manually before caching shared values like Thrift ByteBuffers.