jetbrains.exodus.core.dataStructures

Class ObjectCache<K,V>

java.lang.Object

jetbrains.exodus.core.dataStructures.CacheHitRateable

jetbrains.exodus.core.dataStructures.ObjectCacheBase<K,V>

jetbrains.exodus.core.dataStructures.ObjectCache<K,V>

public class ObjectCache<K,V>
extends ObjectCacheBase<K,V>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ObjectCache.DeletedPairsListener<K,V>
protected static class	ObjectCache.ObjectCacheKeysIterator<K,V>
protected static class	ObjectCache.ObjectCacheValuesIterator<K,V>

Nested classes/interfaces inherited from class jetbrains.exodus.core.dataStructures.ObjectCacheBase

ObjectCacheBase.CriticalSection

Field Summary

Fields

Modifier and Type	Field and Description
static float	DEFAULT_SECOND_GENERATION_QUEUE_SIZE_RATIO

Fields inherited from class jetbrains.exodus.core.dataStructures.ObjectCacheBase

DEFAULT_SIZE, MIN_SIZE, size

Constructor Summary

Constructors

Constructor and Description
ObjectCache()
ObjectCache(int cacheSize)
ObjectCache(int cacheSize, float secondGenSizeRatio)

Method Summary

Modifier and Type	Method and Description
void	addDeletedPairsListener(ObjectCache.DeletedPairsListener<K,V> listener)
V	cacheObject(K key, V x)
void	clear()
int	count()
V	getObject(K key)
java.util.Iterator<K>	keys()
void	lock()
V	remove(K key)
void	removeAll()
void	removeDeletedPairsListener(ObjectCache.DeletedPairsListener<K,V> listener)
V	tryKey(K key)
void	unlock()
java.util.Iterator<V>	values()

Methods inherited from class jetbrains.exodus.core.dataStructures.ObjectCacheBase

adjustHitRate, containsKey, formatHitRate, get, isCached, isEmpty, newCriticalSection, put, size, tryKeyLocked

Methods inherited from class jetbrains.exodus.core.dataStructures.CacheHitRateable

close, getAttempts, getCacheAdjuster, getHits, hitRate, incAttempts, incHits, setAttempts, setHits

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SECOND_GENERATION_QUEUE_SIZE_RATIO

public static final float DEFAULT_SECOND_GENERATION_QUEUE_SIZE_RATIO

See Also:

Constant Field Values

Constructor Detail

ObjectCache

public ObjectCache()

ObjectCache

public ObjectCache(int cacheSize)

ObjectCache

public ObjectCache(int cacheSize,
                   float secondGenSizeRatio)

Method Detail

clear

public void clear()

Specified by:

clear in class ObjectCacheBase<K,V>

lock

public void lock()

Specified by:

lock in class ObjectCacheBase<K,V>

unlock

public void unlock()

Specified by:

unlock in class ObjectCacheBase<K,V>

remove

public V remove(@NotNull
                K key)

Specified by:

remove in class ObjectCacheBase<K,V>

removeAll

public void removeAll()

cacheObject

public V cacheObject(@NotNull
                     K key,
                     @NotNull
                     V x)

Specified by:

cacheObject in class ObjectCacheBase<K,V>

tryKey

public V tryKey(@NotNull
                K key)

Specified by:

tryKey in class ObjectCacheBase<K,V>

getObject

public V getObject(@NotNull
                   K key)

Specified by:

getObject in class ObjectCacheBase<K,V>

Parameters:

key - key.

Returns:

object from the cache not affecting usages statistics.

count

public int count()

Specified by:

count in class ObjectCacheBase<K,V>

keys

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

values

public java.util.Iterator<V> values()

addDeletedPairsListener

public void addDeletedPairsListener(ObjectCache.DeletedPairsListener<K,V> listener)

removeDeletedPairsListener

public void removeDeletedPairsListener(ObjectCache.DeletedPairsListener<K,V> listener)