iitb.con.caching
Interface Cache<K>

All Known Implementing Classes:

LRUCache, MRUCache

public interface Cache<K>

Caching for Queries

Method Summary

void	clear() Clears the cache
long	freeSpace() Returns the available free space
CacheObject	get(K key) Returns the cached object for the given key
long	getSize() Returns the size of cache in bytes
boolean	put(K key, CacheObject obj) Places the cache object in the cache using the key

Method Detail

clear

void clear()

Clears the cache

freeSpace

long freeSpace()

Returns the available free space

Returns:

cache free space

get

CacheObject get(K key)

Returns the cached object for the given key

Parameters:

key - key used to retrieve the object

Returns:

cached object if present, else returns NULL

See Also:

CacheObject

getSize

long getSize()

Returns the size of cache in bytes

Returns:

cache size as long

put

boolean put(K key,
            CacheObject obj)

Places the cache object in the cache using the key

Parameters:

key - key used to place the object

obj - cache object

Returns:

true on success

See Also:

CacheObject