Package com._1c.g5.v8.xmdb.impl

Class SLRUCacheMT<K,V>

java.lang.Object

com._1c.g5.v8.xmdb.impl.SLRUCacheMT<K,V>

public class SLRUCacheMT<K,V>
extends Object

Multithread SLRU cache implementation

Constructor Summary

Constructors

Constructor	Description
SLRUCacheMT(int pSize, int tSize, boolean processEvict, boolean threadSafe)	Cache constructor

Method Summary

Modifier and Type	Method	Description
void	clear()	Clear (drop) cache
Set<Map.Entry<K,V>>	entrySet()	Get entry set of all values from cache
protected void	evict(K key, V value)	Evict process implementation.
void	evictAll()	Evict all values from cache
V	get(K key)	Get value by key
V	put(K key, V value)
V	remove(K key)	Remove specified key from cache
Map<K,V>	removeAll()	Remove all values from cache and return it
int	size()	Get total number of values in cache
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SLRUCacheMT

public SLRUCacheMT(int pSize,
                   int tSize,
                   boolean processEvict,
                   boolean threadSafe)

Cache constructor

Parameters:

pSize - size of "protected" buffer of SLRU cache

tSize - size of "test" buffer of SLRU cache

processEvict - need to call external evict methods while evicting values from cache

threadSafe - need to be a thread save cache

Method Detail

entrySet

public Set<Map.Entry<K,V>> entrySet()

Get entry set of all values from cache

Returns:

set of all values from cache

evictAll

public void evictAll()

Evict all values from cache

removeAll

public Map<K,V> removeAll()

Remove all values from cache and return it

Returns:

all key/value pair, removed from cache

clear

public void clear()

Clear (drop) cache

size

public int size()

Get total number of values in cache

Returns:

the number of values in cache

get

public V get(K key)

Get value by key

Parameters:

key - the key

Returns:

value or null

put

public V put(K key,
             V value)

remove

public V remove(K key)

Remove specified key from cache

Parameters:

key - the key to remove

Returns:

assotiated with removed key value or null (if value == null or specified key wasn't found in cache)

evict

protected void evict(K key,
                     V value)

Evict process implementation. Specified key/value pair steel be available in cache untill evict process finished. Evict should be thread save. Evict can't be called from the same key in different threads in same time.

Parameters:

key - evicting key

value - evicting valut

toString

public String toString()

Overrides:

toString in class Object