com.hazelcast.map.impl.nearcache

Class InvalidationAwareWrapper<K,V>

java.lang.Object

com.hazelcast.map.impl.nearcache.InvalidationAwareWrapper<K,V>

All Implemented Interfaces:

NearCache<K,V>, InitializingObject

public final class InvalidationAwareWrapper<K,V>
extends Object
implements NearCache<K,V>

Aware of invalidations and if an invalidation for a key comes before put to cache, cached value will be removed. See usages of this wrapper in proxies.

See Also:

KeyStateMarker, MapProxyImpl.get(java.lang.Object)

Field Summary

Fields inherited from interface com.hazelcast.internal.nearcache.NearCache

DEFAULT_EXPIRATION_TASK_DELAY_IN_SECONDS, DEFAULT_EXPIRATION_TASK_INITIAL_DELAY_IN_SECONDS, NULL_OBJECT

Method Summary

Modifier and Type	Method and Description
static <KEY,VALUE> NearCache<KEY,VALUE>	asInvalidationAware(NearCache<KEY,VALUE> nearCache, int markerCount)
void	clear() Removes all stored values.
void	destroy() Clears the record store and destroys it.
V	get(K key) Gets the value associated with the given key.
InMemoryFormat	getInMemoryFormat() Gets the InMemoryFormat of the storage for internal records.
KeyStateMarker	getKeyStateMarker()
String	getName() Gets the name of this NearCache instance.
NearCacheStats	getNearCacheStats() Get the NearCacheStats instance to monitor this store.
NearCachePreloaderConfig	getPreloaderConfig() Gets the NearCachePreloaderConfig of this Near Cache.
void	initialize()
boolean	isInvalidatedOnChange() Checks if values are invalidated on changes.
boolean	isPreloadDone() Checks if the pre-loading of the Near Cache is done.
void	preload(DataStructureAdapter adapter) Executes the Near Cache pre-loader on the given DataStructureAdapter.
void	put(K key, V value) Puts (associates) a value with the given key.
boolean	remove(K key) Removes the value associated with the given key.
Object	selectToSave(Object... candidates) Selects the best candidate object to store from the given candidates.
int	size() Gets the count of stored records.
void	storeKeys() Stores the keys of the Near Cache.
<T> T	unwrap(Class<T> clazz) Used to access non-standard methods of an implementation.

Methods inherited from class java.lang.Object

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

Method Detail

asInvalidationAware

public static <KEY,VALUE> NearCache<KEY,VALUE> asInvalidationAware(NearCache<KEY,VALUE> nearCache,
                                                                   int markerCount)

initialize

public void initialize()

Specified by:

initialize in interface InitializingObject

getName

public String getName()

Description copied from interface: NearCache

Gets the name of this NearCache instance.

Specified by:

getName in interface NearCache<K,V>

Returns:

the name of this NearCache instance

get

public V get(K key)

Description copied from interface: NearCache

Gets the value associated with the given key.

Specified by:

get in interface NearCache<K,V>

Parameters:

key - the key of the requested value

Returns:

the value associated with the given key

put

public void put(K key,
                V value)

Description copied from interface: NearCache

Puts (associates) a value with the given key.

Specified by:

put in interface NearCache<K,V>

Parameters:

key - the key of the value will be stored

value - the value will be stored

remove

public boolean remove(K key)

Description copied from interface: NearCache

Removes the value associated with the given key.

Specified by:

remove in interface NearCache<K,V>

Parameters:

key - the key of the value will be removed

isInvalidatedOnChange

public boolean isInvalidatedOnChange()

Description copied from interface: NearCache

Checks if values are invalidated on changes.

Specified by:

isInvalidatedOnChange in interface NearCache<K,V>

Returns:

true if values are invalidated on changes, false otherwise

clear

public void clear()

Description copied from interface: NearCache

Removes all stored values.

Specified by:

clear in interface NearCache<K,V>

destroy

public void destroy()

Description copied from interface: NearCache

Clears the record store and destroys it.

Specified by:

destroy in interface NearCache<K,V>

getInMemoryFormat

public InMemoryFormat getInMemoryFormat()

Description copied from interface: NearCache

Gets the InMemoryFormat of the storage for internal records.

Specified by:

getInMemoryFormat in interface NearCache<K,V>

Returns:

the InMemoryFormat of the storage for internal records

getPreloaderConfig

public NearCachePreloaderConfig getPreloaderConfig()

Description copied from interface: NearCache

Gets the NearCachePreloaderConfig of this Near Cache.

Specified by:

getPreloaderConfig in interface NearCache<K,V>

Returns:

the NearCachePreloaderConfig of this Near Cache

getNearCacheStats

public NearCacheStats getNearCacheStats()

Description copied from interface: NearCache

Get the NearCacheStats instance to monitor this store.

Specified by:

getNearCacheStats in interface NearCache<K,V>

Returns:

the NearCacheStats instance to monitor this store

selectToSave

public Object selectToSave(Object... candidates)

Description copied from interface: NearCache

Selects the best candidate object to store from the given candidates.

Specified by:

selectToSave in interface NearCache<K,V>

Parameters:

candidates - the candidates from which the best candidate object will be selected.

Returns:

the best candidate object to store, selected from the given candidates.

size

public int size()

Description copied from interface: NearCache

Gets the count of stored records.

Specified by:

size in interface NearCache<K,V>

Returns:

the count of stored records

preload

public void preload(DataStructureAdapter adapter)

Description copied from interface: NearCache

Executes the Near Cache pre-loader on the given DataStructureAdapter.

Specified by:

preload in interface NearCache<K,V>

storeKeys

public void storeKeys()

Description copied from interface: NearCache

Stores the keys of the Near Cache.

Specified by:

storeKeys in interface NearCache<K,V>

isPreloadDone

public boolean isPreloadDone()

Description copied from interface: NearCache

Checks if the pre-loading of the Near Cache is done.

Specified by:

isPreloadDone in interface NearCache<K,V>

Returns:

true if the pre-loading is done, false otherwise.

unwrap

public <T> T unwrap(Class<T> clazz)

Description copied from interface: NearCache

Used to access non-standard methods of an implementation.

If this method is called on a wrapper object, result is wrapped object.

Specified by:

unwrap in interface NearCache<K,V>

Type Parameters:

T - the type of the class modeled by this Class object

Parameters:

clazz - the type of returning object.

Returns:

an instance of the supplied clazz type.

getKeyStateMarker

public KeyStateMarker getKeyStateMarker()