com.hazelcast.map.impl.nearcache

Class StaleReadPreventerNearCacheWrapper

java.lang.Object

com.hazelcast.map.impl.nearcache.StaleReadPreventerNearCacheWrapper

All Implemented Interfaces:

NearCache, KeyStateMarker

public final class StaleReadPreventerNearCacheWrapper
extends Object
implements NearCache, KeyStateMarker

Guards a NearCache against stale reads by using KeyStateMarker

See Also:

KeyStateMarker

Nested Class Summary

Nested classes/interfaces inherited from interface com.hazelcast.map.impl.nearcache.KeyStateMarker

KeyStateMarker.STATE

Field Summary

Fields inherited from interface com.hazelcast.cache.impl.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
void	clear() Removes all stored values.
void	destroy() Clears the record store and destroys it.
void	forceUnmark(Object key)
Object	get(Object key) Gets the value associated with the given key.
InMemoryFormat	getInMemoryFormat() Gets the InMemoryFormat of the storage for internal records.
KeyStateMarker	getKeyStateMarker()
AtomicIntegerArray	getMarks()
String	getName() Gets the name of the this NearCache instance.
NearCacheStats	getNearCacheStats() Get the NearCacheStats instance to monitor this store.
void	init()
boolean	isInvalidateOnChange()
void	put(Object key, Object value) Puts (associates) a value with the given key.
boolean	remove(Object 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.
String	toString()
boolean	tryMark(Object key)
boolean	tryRemove(Object key)
boolean	tryUnmark(Object key)
static NearCache	wrapAsStaleReadPreventerNearCache(NearCache nearCache, int markerCount)

Methods inherited from class java.lang.Object

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

Method Detail

wrapAsStaleReadPreventerNearCache

public static NearCache wrapAsStaleReadPreventerNearCache(NearCache nearCache,
                                                          int markerCount)

getName

public String getName()

Description copied from interface: NearCache

Gets the name of the this NearCache instance.

Specified by:

getName in interface NearCache

Returns:

the name of the this NearCache instance

get

public Object get(Object key)

Description copied from interface: NearCache

Gets the value associated with the given key.

Specified by:

get in interface NearCache

Parameters:

key - the key of the requested value

Returns:

the value associated with the given key

put

public void put(Object key,
                Object value)

Description copied from interface: NearCache

Puts (associates) a value with the given key.

Specified by:

put in interface NearCache

Parameters:

key - the key of the value will be stored

value - the value will be stored

remove

public boolean remove(Object key)

Description copied from interface: NearCache

Removes the value associated with the given key.

Specified by:

remove in interface NearCache

Parameters:

key - the key of the value will be removed

isInvalidateOnChange

public boolean isInvalidateOnChange()

Specified by:

isInvalidateOnChange in interface NearCache

Returns:

clear

public void clear()

Description copied from interface: NearCache

Removes all stored values.

Specified by:

clear in interface NearCache

destroy

public void destroy()

Description copied from interface: NearCache

Clears the record store and destroys it.

Specified by:

destroy in interface NearCache

getInMemoryFormat

public InMemoryFormat getInMemoryFormat()

Description copied from interface: NearCache

Gets the InMemoryFormat of the storage for internal records.

Specified by:

getInMemoryFormat in interface NearCache

Returns:

the InMemoryFormat of the storage for internal records

getNearCacheStats

public NearCacheStats getNearCacheStats()

Description copied from interface: NearCache

Get the NearCacheStats instance to monitor this store.

Specified by:

getNearCacheStats in interface NearCache

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

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

Returns:

the count of stored records

tryMark

public boolean tryMark(Object key)

Specified by:

tryMark in interface KeyStateMarker

tryUnmark

public boolean tryUnmark(Object key)

Specified by:

tryUnmark in interface KeyStateMarker

tryRemove

public boolean tryRemove(Object key)

Specified by:

tryRemove in interface KeyStateMarker

forceUnmark

public void forceUnmark(Object key)

Specified by:

forceUnmark in interface KeyStateMarker

init

public void init()

Specified by:

init in interface KeyStateMarker

getKeyStateMarker

public KeyStateMarker getKeyStateMarker()

getMarks

public AtomicIntegerArray getMarks()

toString

public String toString()

Overrides:

toString in class Object