Ehcache (ehcache 2.8.5 API)

Ehcache is the central interface. Caches have Elements and are managed by the CacheManager. The Cache performs logical actions. It delegates physical implementations to its Stores.

A reference to an EhCache can be obtained through the CacheManager. An Ehcache thus obtained is guaranteed to have status Status.STATUS_ALIVE. This status is checked for any method which throws IllegalStateException and the same thrown if it is not alive. This would normally happen if a call is made after CacheManager.shutdown() is invoked.

Statistics on cache usage are collected and made available through public methods.

Version:: $Id: Ehcache.java 7824 2013-07-23 01:54:39Z vfunshte $
Author:: Greg Luck

Method Summary

void acquireReadLockOnKey(Object key)
Acquires the proper read lock for a given cache key

void acquireWriteLockOnKey(Object key)
Acquires the proper write lock for a given cache key

void addPropertyChangeListener(PropertyChangeListener listener)
Add a PropertyChangeListener.

void bootstrap()
Bootstrap command.

long calculateInMemorySize()
Deprecated.

long calculateOffHeapSize()
Deprecated.

long calculateOnDiskSize()
Deprecated.

Object clone()
Clones a cache.

Query createQuery()
Create a new query builder for this cache

void disableDynamicFeatures()
Disables dynamic configuration and disable/enable for this cache.

void dispose()
Flushes all cache items from memory to auxilliary caches and close the auxilliary caches.

void evictExpiredElements()
Causes all elements stored in the Cache to be synchronously checked for expiry, and if expired, evicted.

void flush()
Flushes all cache items from memory to the disk store, and from the DiskStore to disk.

Element get(Object key)
Gets an element from the cache.

Element get(Serializable key)
Gets an element from the cache.

Map<Object,Element> getAll(Collection<?> keys)
Gets all the elements from the cache for the keys provided.

Map getAllWithLoader(Collection keys, Object loaderArgument)
The getAll method will return, from the cache, a Map of the objects associated with the Collection of keys in argument "keys".

BootstrapCacheLoader getBootstrapCacheLoader()
Accessor for the BootstrapCacheLoader associated with this cache.

CacheConfiguration getCacheConfiguration()
Gets the cache configuration this cache was created with.

RegisteredEventListeners getCacheEventNotificationService()
Use this to access the service in order to register and unregister listeners

CacheExceptionHandler getCacheExceptionHandler()
Sets an ExceptionHandler on the Cache.

CacheManager getCacheManager()
Gets the CacheManager managing this cache.

int getDiskStoreSize()
Deprecated.

String getGuid()
The GUID for this cache instance can be used to determine whether two cache instance references are pointing to the same cache.

Object getInternalContext()
This should not be used return some internal context (generally will be null)

List getKeys()
Returns a list of all elements in the cache, whether or not they are expired.

List getKeysNoDuplicateCheck()
Deprecated. versions since 2.1 do not return duplicates

List getKeysWithExpiryCheck()
Returns a list of all elements in the cache.

long getMemoryStoreSize()
Deprecated.

String getName()
Gets the cache name.

long getOffHeapStoreSize()
Deprecated.

Element getQuiet(Object key)
Gets an element from the cache, without updating Element statistics.

Element getQuiet(Serializable key)
Gets an element from the cache, without updating Element statistics.

List<CacheExtension> getRegisteredCacheExtensions()

List<CacheLoader> getRegisteredCacheLoaders()

CacheWriter getRegisteredCacheWriter()
Retrieves the CacheWriter that was registered for this cache.





<T> Attribute<T>

getSearchAttribute(String attributeName)
Retrieve the given named search attribute

Set<Attribute> getSearchAttributes()

int getSize()
Gets the size of the cache.

StatisticsGateway getStatistics()
Gets an immutable Statistics object representing the Cache statistics at the time.

Status getStatus()
Gets the status attribute of the Cache.

Element getWithLoader(Object key, CacheLoader loader, Object loaderArgument)
This method will return, from the cache, the object associated with the argument "key".

CacheWriterManager getWriterManager()
Obtain the writer manager that's used by this cache instance.

boolean hasAbortedSizeOf()
Check if the cache may contain elements which the SizeOf engine could not fully size.

void initialise()
Newly created caches do not have a MemoryStore or a DiskStore.

boolean isClusterBulkLoadEnabled()
Returns true if at least one node in the cluster is in bulk-load mode.

boolean isClusterCoherent()
Deprecated. Use isClusterBulkLoadEnabled() instead

boolean isDisabled()
Whether this cache is disabled.

boolean isElementInMemory(Object key)
Whether an Element is stored in the cache in Memory, indicating a very low cost of retrieval.

boolean isElementInMemory(Serializable key)
Whether an Element is stored in the cache in Memory, indicating a very low cost of retrieval.

boolean isElementOnDisk(Object key)
Whether an Element is stored in the cache on Disk, indicating a higher cost of retrieval.

boolean isElementOnDisk(Serializable key)
Whether an Element is stored in the cache on Disk, indicating a higher cost of retrieval.

boolean isExpired(Element element)
Checks whether this cache element has expired.

boolean isKeyInCache(Object key)
An inexpensive check to see if the key exists in the cache.

boolean isNodeBulkLoadEnabled()
Returns true if the current node is in bulk-load mode.

boolean isNodeCoherent()
Deprecated. Use isNodeBulkLoadEnabled() instead

boolean isReadLockedByCurrentThread(Object key)
Returns true if a read lock for the key is held by the current thread

boolean isSearchable()
Is this cache searchable?

boolean isValueInCache(Object value)
An extremely expensive check to see if the value exists in the cache.

boolean isWriteLockedByCurrentThread(Object key)
Returns true if a write lock for the key is held by the current thread

void load(Object key)
The load method provides a means to "pre load" the cache.

void loadAll(Collection keys, Object argument)
The loadAll method provides a means to "pre load" objects into the cache.

void put(Element element)
Put an element in the cache.

void put(Element element, boolean doNotNotifyCacheReplicators)
Put an element in the cache.

void putAll(Collection<Element> elements)
Puts a collection of elements in to the cache.

Element putIfAbsent(Element element)
Put an element in the cache if no element is currently mapped to the elements key.

Element putIfAbsent(Element element, boolean doNotNotifyCacheReplicators)
Put an element in the cache if no element is currently mapped to the elements key.

void putQuiet(Element element)
Put an element in the cache, without updating statistics, or updating listeners.

void putWithWriter(Element element)
Put an element in the cache writing through a CacheWriter.

void registerCacheExtension(CacheExtension cacheExtension)
Register a CacheExtension with the cache.

void registerCacheLoader(CacheLoader cacheLoader)
Register a CacheLoader with the cache.

void registerCacheWriter(CacheWriter cacheWriter)
Register the CacheWriter for this cache.

void registerDynamicAttributesExtractor(DynamicAttributesExtractor extractor)
Allows user to register a dynamic attribute extractor with a searchable cache that is dynamically indexable, as indicated by its configuration.

void releaseReadLockOnKey(Object key)
Release a held read lock for the passed in key

void releaseWriteLockOnKey(Object key)
Release a held write lock for the passed in key

boolean remove(Object key)
Removes an Element from the Cache.

boolean remove(Object key, boolean doNotNotifyCacheReplicators)
Removes an Element from the Cache.

boolean remove(Serializable key)
Removes an Element from the Cache.

boolean remove(Serializable key, boolean doNotNotifyCacheReplicators)
Removes an Element from the Cache.

void removeAll()
Removes all cached items.

void removeAll(boolean doNotNotifyCacheReplicators)
Removes all cached items.

void removeAll(Collection<?> keys)
Removes given set of Element from the Cache.

void removeAll(Collection<?> keys, boolean doNotNotifyCacheReplicators)
Removes all cached items.

boolean removeElement(Element element)
Remove the Element mapped to the key for the supplied element if the value of the supplied Element compares equal to the value of the cached Element.

void removePropertyChangeListener(PropertyChangeListener listener)
Remove a PropertyChangeListener.

boolean removeQuiet(Object key)
Removes an Element from the Cache, without notifying listeners.

boolean removeQuiet(Serializable key)
Removes an Element from the Cache, without notifying listeners.

boolean removeWithWriter(Object key)
Removes an Element from the Cache and any stores it might be in.

Element replace(Element element)
Replace the cached element only if an Element is currently cached for this key

boolean replace(Element old, Element element)
Replace the cached element only if the current Element is equal to the supplied old Element.

void setBootstrapCacheLoader(BootstrapCacheLoader bootstrapCacheLoader)
Sets the bootstrap cache loader.

void setCacheExceptionHandler(CacheExceptionHandler cacheExceptionHandler)
Sets an ExceptionHandler on the Cache.

void setCacheManager(CacheManager cacheManager)
Sets the CacheManager

void setDisabled(boolean disabled)
Disables or enables this cache.

void setName(String name)
Sets the cache name which will name.

void setNodeBulkLoadEnabled(boolean enabledBulkLoad)
Enable/disable bulk-load mode in this node for this cache.

void setNodeCoherent(boolean coherent)
Deprecated. Use setNodeBulkLoadEnabled(boolean) instead

void setTransactionManagerLookup(TransactionManagerLookup transactionManagerLookup)
This class is used to access the transaction manager used during XA.

String toString()
Returns a String representation of Cache.

boolean tryReadLockOnKey(Object key, long timeout)
Try to get a read lock on a given key.

boolean tryWriteLockOnKey(Object key, long timeout)
Try to get a write lock on a given key.

void unregisterCacheExtension(CacheExtension cacheExtension)
Unregister a CacheExtension with the cache.

void unregisterCacheLoader(CacheLoader cacheLoader)
Unregister a CacheLoader with the cache.

void unregisterCacheWriter()
Unregister the CacheWriter from the cache.

void waitUntilClusterBulkLoadComplete()
This method waits until all the connected nodes have disabled bulk-load.

void waitUntilClusterCoherent()
Deprecated. Use waitUntilClusterBulkLoadComplete() instead

Method Detail

put

void put(Element element)
         throws IllegalArgumentException,
                IllegalStateException,
                CacheException

Put an element in the cache.

Resets the access statistics on the element, which would be the case if it has previously been gotten from a cache, and is now being put back.

Also notifies the CacheEventListener that:

the element was put, but only if the Element was actually put.
if the element exists in the cache, that an update has occurred, even if the element would be expired if it was requested

Parameters:: element - An object. If Serializable it can fully participate in replication and the DiskStore.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; IllegalArgumentException - if the element is null; CacheException

putAll

void putAll(Collection<Element> elements)
            throws IllegalArgumentException,
                   IllegalStateException,
                   CacheException

Puts a collection of elements in to the cache.

This method will throw a NullPointerException if a null element or null key is encountered in the collection, and a partial completion may result (as only some of the elements may have been put).

For each element that is put the registered CacheEventListeners are notified of a newly put item (notifyElementPut(...)) regardless of whether the individual put is a new put or an update.

Parameters:: elements - the collection of elements to be put in the cache.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException; IllegalArgumentException

put

void put(Element element,
         boolean doNotNotifyCacheReplicators)
         throws IllegalArgumentException,
                IllegalStateException,
                CacheException

Put an element in the cache.

Resets the access statistics on the element, which would be the case if it has previously been gotten from a cache, and is now being put back.

Also notifies the CacheEventListener that:

the element was put, but only if the Element was actually put.
if the element exists in the cache, that an update has occurred, even if the element would be expired if it was requested

Parameters:: element - An object. If Serializable it can fully participate in replication and the DiskStore.; doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; IllegalArgumentException - if the element is null; CacheException

putQuiet

void putQuiet(Element element)
              throws IllegalArgumentException,
                     IllegalStateException,
                     CacheException

Put an element in the cache, without updating statistics, or updating listeners. This is meant to be used in conjunction with getQuiet(java.io.Serializable)

Parameters:: element - An object. If Serializable it can fully participate in replication and the DiskStore.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; IllegalArgumentException - if the element is null; CacheException

putWithWriter

void putWithWriter(Element element)
                   throws IllegalArgumentException,
                          IllegalStateException,
                          CacheException

Put an element in the cache writing through a CacheWriter. If no CacheWriter has been registered for the cache, then this method throws an exception.

Resets the access statistics on the element, which would be the case if it has previously been gotten from a cache, and is now being put back.

Also notifies the CacheEventListener, if the writer operation succeeds, that:

the element was put, but only if the Element was actually put.
if the element exists in the cache, that an update has occurred, even if the element would be expired if it was requested

Parameters:: element - An object. If Serializable it can fully participate in replication and the DiskStore.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; IllegalArgumentException - if the element is null; CacheException - if no CacheWriter was registered

putIfAbsent

Element putIfAbsent(Element element)
                    throws NullPointerException

Put an element in the cache if no element is currently mapped to the elements key.

Parameters:: element - element to be added
Returns:: the element previously cached for this key, or null if none.
Throws:: NullPointerException - if the element is null, or has a null key

putIfAbsent

Element putIfAbsent(Element element,
                    boolean doNotNotifyCacheReplicators)
                    throws NullPointerException

Put an element in the cache if no element is currently mapped to the elements key.

Parameters:: element - element to be added; doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Returns:: the element previously cached for this key, or null if none.
Throws:: NullPointerException - if the element is null, or has a null key

removeElement

boolean removeElement(Element element)
                      throws NullPointerException

Remove the Element mapped to the key for the supplied element if the value of the supplied Element compares equal to the value of the cached Element.

This is equivalent to

   if (elementValueComparator.equals(cache.get(element.getObjectKey()), element)) {
       return cache.remove(element.getObjectKey());
   } else return false;

except that the action is performed atomically.

Parameters:: element - Element to be removed
Returns:: true if the value was removed
Throws:: NullPointerException - if the element is null, or has a null key
See Also:: CacheConfiguration.addElementValueComparator(net.sf.ehcache.config.ElementValueComparatorConfiguration)

replace

boolean replace(Element old,
                Element element)
                throws NullPointerException,
                       IllegalArgumentException

Replace the cached element only if the current Element is equal to the supplied old Element.

Parameters:: old - Element to be test against; element - Element to be cached
Returns:: true if the Element was replaced
Throws:: NullPointerException - if the either Element is null or has a null key; IllegalArgumentException - if the two Element keys are non-null but not equal

replace

Element replace(Element element)
                throws NullPointerException

Replace the cached element only if an Element is currently cached for this key

Parameters:: element - Element to be cached
Returns:: the Element previously cached for this key, or null if no Element was cached
Throws:: NullPointerException - if the Element is null or has a null key

get

Element get(Serializable key)
            throws IllegalStateException,
                   CacheException

Gets an element from the cache. Updates Element Statistics

Note that the Element's lastAccessTime is always the time of this get. Use getQuiet(Object) to peak into the Element to see its last access time with get

Parameters:: key - a serializable value
Returns:: the element, or null, if it does not exist.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException
See Also:: isExpired(net.sf.ehcache.Element)

get

Element get(Object key)
            throws IllegalStateException,
                   CacheException

Gets an element from the cache. Updates Element Statistics

Note that the Element's lastAccessTime is always the time of this get. Use getQuiet(Object) to peek into the Element to see its last access time with get

Parameters:: key - an Object value
Returns:: the element, or null, if it does not exist.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException
Since:: 1.2
See Also:: isExpired(net.sf.ehcache.Element)

getAll

Map<Object,Element> getAll(Collection<?> keys)
                           throws IllegalStateException,
                                  CacheException,
                                  NullPointerException

Gets all the elements from the cache for the keys provided. Updates Element Statistics Throws a NullPointerException if any key in the collection is null

Note that the Element's lastAccessTime is always the time of this get. Use getQuiet(Object) to peek into the Element to see its last access time with get

Parameters:: keys - a collection of keys for which value is to be fetched
Returns:: Map of key and elements for the provided keys, value will be null for the keys which do not exist
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; NullPointerException - if any key is null in the collection; CacheException
See Also:: isExpired(net.sf.ehcache.Element)

getQuiet

Element getQuiet(Serializable key)
                 throws IllegalStateException,
                        CacheException

Gets an element from the cache, without updating Element statistics. Cache statistics are still updated.

Parameters:: key - a serializable value
Returns:: the element, or null, if it does not exist.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException
Since:: 2.5
See Also:: isExpired(net.sf.ehcache.Element)

getQuiet

Element getQuiet(Object key)
                 throws IllegalStateException,
                        CacheException

Gets an element from the cache, without updating Element statistics. Cache statistics are also not updated.

Parameters:: key - a serializable value
Returns:: the element, or null, if it does not exist.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException
Since:: 1.2
See Also:: isExpired(net.sf.ehcache.Element)

getKeys

List getKeys()
             throws IllegalStateException,
                    CacheException

Returns a list of all elements in the cache, whether or not they are expired.

The returned keys are unique and can be considered a set.

The List returned is not live. It is a copy.

The time taken is O(n). On a single cpu 1.8Ghz P4, approximately 8ms is required for each 1000 entries.

Returns:: a list of Object keys
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

getKeysWithExpiryCheck

List getKeysWithExpiryCheck()
                            throws IllegalStateException,
                                   CacheException

Returns a list of all elements in the cache. Only keys of non-expired elements are returned.

The returned keys are unique and can be considered a set.

The List returned is not live. It is a copy.

For large caches - or caches with high-latency storage this method can take a very long time to complete. You should seriously consider whether your usage requires checking for expired keys before choosing to call this method. As this method can take a long time the results may also be significantly out of date by the time the method returns.

Returns:: a list of Object keys
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

getKeysNoDuplicateCheck

@Deprecated
List getKeysNoDuplicateCheck()
                             throws IllegalStateException

Deprecated. versions since 2.1 do not return duplicates

Returns a list of all elements in the cache, whether or not they are expired.

The returned keys are not unique and may contain duplicates. If the cache is only using the memory store, the list will be unique. If the disk store is being used as well, it will likely contain duplicates, because of the internal store design.

The List returned is not live. It is a copy.

The time taken is O(log n). On a single cpu 1.8Ghz P4, approximately 6ms is required for 1000 entries and 36 for 50000.

This is the fastest getKeys method

Returns:: a list of Object keys
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

remove

boolean remove(Serializable key)
               throws IllegalStateException

Removes an Element from the Cache. This also removes it from any stores it may be in.

Also notifies the CacheEventListener after the element was removed.

Parameters:: key -
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

remove

boolean remove(Object key)
               throws IllegalStateException

Removes an Element from the Cache. This also removes it from any stores it may be in.

Also notifies the CacheEventListener after the element was removed, but only if an Element with the key actually existed.

Parameters:: key -
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE
Since:: 1.2

removeAll

void removeAll(Collection<?> keys)
               throws IllegalStateException,
                      NullPointerException

Removes given set of Element from the Cache. This also removes them from any stores it may be in. Throws a NullPointerException if any key in the collection is null

Also notifies the CacheEventListener after the elements were removed. Notification is sent for every key irrespective of whether the key was present in the cache or not This operation is partially completed if any element or any key is null

Parameters:: keys - a collection of keys to operate on
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; NullPointerException - if any key is null in the collection

removeAll

void removeAll(Collection<?> keys,
               boolean doNotNotifyCacheReplicators)
               throws IllegalStateException,
                      NullPointerException

Removes all cached items.

When using Terracotta clustered caches with nonstop enabled, the timeout used by this method is NonstopConfiguration.getBulkOpsTimeoutMultiplyFactor() times the timeout value in the nonstop config.

Parameters:: doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; NullPointerException

remove

boolean remove(Serializable key,
               boolean doNotNotifyCacheReplicators)
               throws IllegalStateException

Removes an Element from the Cache. This also removes it from any stores it may be in.

Also notifies the CacheEventListener after the element was removed, but only if an Element with the key actually existed.

Parameters:: key -; doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

remove

boolean remove(Object key,
               boolean doNotNotifyCacheReplicators)
               throws IllegalStateException

Removes an Element from the Cache. This also removes it from any stores it may be in.

Also notifies the CacheEventListener after the element was removed, but only if an Element with the key actually existed.

Parameters:: key -; doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

removeQuiet

boolean removeQuiet(Serializable key)
                    throws IllegalStateException

Removes an Element from the Cache, without notifying listeners. This also removes it from any stores it may be in.

Parameters:: key -
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

removeQuiet

boolean removeQuiet(Object key)
                    throws IllegalStateException

Removes an Element from the Cache, without notifying listeners. This also removes it from any stores it may be in.

Parameters:: key -
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE
Since:: 1.2

removeWithWriter

boolean removeWithWriter(Object key)
                         throws IllegalStateException,
                                CacheException

Removes an Element from the Cache and any stores it might be in. This also removes through to a CacheWriter. If no CacheWriter has been registered for the cache, then this method throws an exception.

Also notifies the CacheEventListener after the element was removed, but only if an Element with the key actually existed.

Parameters:: key -
Returns:: true if the element was removed, false if it was not found in the cache
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException - if no CacheWriter was registered
Since:: 2.0

removeAll

void removeAll()
               throws IllegalStateException,
                      CacheException

Removes all cached items.

When using Terracotta clustered caches with nonstop enabled, the timeout used by this method is NonstopConfiguration.getBulkOpsTimeoutMultiplyFactor() times the timeout value in the nonstop config.

Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

removeAll

void removeAll(boolean doNotNotifyCacheReplicators)
               throws IllegalStateException,
                      CacheException

Removes all cached items.

When using Terracotta clustered caches with nonstop enabled, the timeout used by this method is NonstopConfiguration.getBulkOpsTimeoutMultiplyFactor() times the timeout value in the nonstop config.

Parameters:: doNotNotifyCacheReplicators - whether the put is coming from a doNotNotifyCacheReplicators cache peer, in which case this put should not initiate a further notification to doNotNotifyCacheReplicators cache peers
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

flush

void flush()
           throws IllegalStateException,
                  CacheException

Flushes all cache items from memory to the disk store, and from the DiskStore to disk.

Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

getSize

int getSize()
            throws IllegalStateException,
                   CacheException

Gets the size of the cache. This is a subtle concept. See below.

The size is the number of Elements in the MemoryStore plus the number of Elements in the DiskStore.

This number is the actual number of elements, including expired elements that have not been removed.

Expired elements are removed from the the memory store when getting an expired element, or when attempting to spool an expired element to disk.

Expired elements are removed from the disk store when getting an expired element, or when the expiry thread runs, which is once every five minutes.

To get an exact size, which would exclude expired elements, use getKeysWithExpiryCheck().size(), although see that method for the approximate time that would take.

To get a very fast result, use getKeysNoDuplicateCheck().size(). If the disk store is being used, there will be some duplicates.

Note:getSize() is a very expensive operation in off-heap, disk and Terracotta implementations.

Returns:: The size value
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; CacheException

calculateInMemorySize

@Deprecated
long calculateInMemorySize()
                           throws IllegalStateException,
                                  CacheException

Deprecated.

Gets the size of the memory store for this cache

Warning: This method can be very expensive to run. Allow approximately 1 second per 1MB of entries. Running this method could create liveness problems because the object lock is held for a long period

Returns:: the approximate size of the memory store in bytes
Throws:: IllegalStateException; CacheException

calculateOffHeapSize

@Deprecated
long calculateOffHeapSize()
                          throws IllegalStateException,
                                 CacheException

Deprecated.

Gets the size of the off-heap store for this cache

Returns:: the size of the off-heap store in bytes
Throws:: IllegalStateException; CacheException

calculateOnDiskSize

@Deprecated
long calculateOnDiskSize()
                         throws IllegalStateException,
                                CacheException

Deprecated.

Gets the size of the on-disk store for this cache

Returns:: the size of the on-disk store in bytes
Throws:: IllegalStateException; CacheException

hasAbortedSizeOf

boolean hasAbortedSizeOf()

Check if the cache may contain elements which the SizeOf engine could not fully size.

Returns:: true if the cache may contain partially sized objects

getMemoryStoreSize

@Deprecated
long getMemoryStoreSize()
                        throws IllegalStateException

Deprecated.

Returns the number of elements in the memory store.

Returns:: the number of elements in the memory store
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

getOffHeapStoreSize

@Deprecated
long getOffHeapStoreSize()
                         throws IllegalStateException

Deprecated.

Returns the number of elements in the off-heap store.

Returns:: the number of elements in the off-heap store
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

getDiskStoreSize

@Deprecated
int getDiskStoreSize()
                     throws IllegalStateException

Deprecated.

Returns the number of elements in the disk store.

Returns:: the number of elements in the disk store.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

getStatus

Status getStatus()

Gets the status attribute of the Cache.

Returns:: The status value from the Status enum class

getName

String getName()

Gets the cache name.

setName

void setName(String name)

Sets the cache name which will name.

Parameters:: name - the name of the cache. Should not be null.

toString

String toString()

Returns a String representation of Cache.

Overrides:: toString in class Object

isExpired

boolean isExpired(Element element)
                  throws IllegalStateException,
                         NullPointerException

Checks whether this cache element has expired.

The element is expired if:

the idle time is non-zero and has elapsed, unless the cache is eternal; or
the time to live is non-zero and has elapsed, unless the cache is eternal; or
the value of the element is null.

Parameters:: element - the element to check
Returns:: true if it has expired
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE; NullPointerException - if the element is null

clone

Object clone()
             throws CloneNotSupportedException

Clones a cache. This is only legal if the cache has not been initialized. At that point only primitives have been set and no MemoryStore or DiskStore has been created.

A new, empty, RegisteredEventListeners is created on clone.

Returns:: an object of type Cache
Throws:: CloneNotSupportedException

getCacheEventNotificationService

RegisteredEventListeners getCacheEventNotificationService()

Use this to access the service in order to register and unregister listeners

Returns:: the RegisteredEventListeners instance for this cache.

isElementInMemory

boolean isElementInMemory(Serializable key)

Whether an Element is stored in the cache in Memory, indicating a very low cost of retrieval.

Since no assertions are made about the state of the Element it is possible that the Element is expired, but this method still returns true.

Returns:: true if an element matching the key is found in memory

isElementInMemory

boolean isElementInMemory(Object key)

Whether an Element is stored in the cache in Memory, indicating a very low cost of retrieval.

Since no assertions are made about the state of the Element it is possible that the Element is expired, but this method still returns true.

Returns:: true if an element matching the key is found in memory
Since:: 1.2

isElementOnDisk

boolean isElementOnDisk(Serializable key)

Whether an Element is stored in the cache on Disk, indicating a higher cost of retrieval.

Since no assertions are made about the state of the Element it is possible that the Element is expired, but this method still returns true.

Returns:: true if an element matching the key is found in the diskStore

isElementOnDisk

boolean isElementOnDisk(Object key)

Whether an Element is stored in the cache on Disk, indicating a higher cost of retrieval.

Since no assertions are made about the state of the Element it is possible that the Element is expired, but this method still returns true.

Returns:: true if an element matching the key is found in the diskStore
Since:: 1.2

getGuid

String getGuid()

The GUID for this cache instance can be used to determine whether two cache instance references are pointing to the same cache.

Returns:: the globally unique identifier for this cache instance. This is guaranteed to be unique.
Since:: 1.2

getCacheManager

CacheManager getCacheManager()

Gets the CacheManager managing this cache. For a newly created cache this will be null until it has been added to a CacheManager.

Returns:: the manager or null if there is none

evictExpiredElements

void evictExpiredElements()

Causes all elements stored in the Cache to be synchronously checked for expiry, and if expired, evicted.

For large caches - or caches with high-latency storage this method can take a very long time to complete. You should seriously consider relying on some form of capacity eviction to control cache capacity over calling this method. As this method can take a long time the cache may not be fully purged of expired elements on return, since more elements may have expired during the call.

isKeyInCache

boolean isKeyInCache(Object key)

An inexpensive check to see if the key exists in the cache.

Since no assertions are made about the state of the Element it is possible that the Element is expired, but this method still returns true.

Parameters:: key - the key to check for
Returns:: true if an Element matching the key is found in the cache. No assertions are made about the state of the Element.

isValueInCache

boolean isValueInCache(Object value)

An extremely expensive check to see if the value exists in the cache.

Parameters:: value - to check for
Returns:: true if an Element matching the key is found in the cache. No assertions are made about the state of the Element.

getStatistics

StatisticsGateway getStatistics()
                                throws IllegalStateException

Gets an immutable Statistics object representing the Cache statistics at the time. How the statistics are calculated depends on the statistics accuracy setting. The only aspect of statistics sensitive to the accuracy setting is object size. How that is calculated is discussed below.

Best Effort Size

This result is returned when the statistics accuracy setting is Statistics#STATISTICS_ACCURACY_BEST_EFFORT.

The size is the number of Elements in the MemoryStore plus the number of Elements in the DiskStore.

This number is the actual number of elements, including expired elements that have not been removed. Any duplicates between stores are accounted for.

Expired elements are removed from the the memory store when getting an expired element, or when attempting to spool an expired element to disk.

Expired elements are removed from the disk store when getting an expired element, or when the expiry thread runs, which is once every five minutes.

Guaranteed Accuracy Size

This result is returned when the statistics accuracy setting is Statistics#STATISTICS_ACCURACY_GUARANTEED.

This method accounts for elements which might be expired or duplicated between stores. It take approximately 200ms per 1000 elements to execute.

Fast but non-accurate Size

This result is returned when the statistics accuracy setting is Statistics#STATISTICS_ACCURACY_NONE.

The number given may contain expired elements. In addition if the DiskStore is used it may contain some double counting of elements. It takes 6ms for 1000 elements to execute. Time to execute is O(log n). 50,000 elements take 36ms.

Returns:: the number of elements in the ehcache, with a varying degree of accuracy, depending on accuracy setting.
Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

setCacheManager

void setCacheManager(CacheManager cacheManager)

Sets the CacheManager

Parameters:: cacheManager - the CacheManager for this cache to use.

getBootstrapCacheLoader

BootstrapCacheLoader getBootstrapCacheLoader()

Accessor for the BootstrapCacheLoader associated with this cache. For testing purposes.

Returns:: the BootstrapCacheLoader to use

setBootstrapCacheLoader

void setBootstrapCacheLoader(BootstrapCacheLoader bootstrapCacheLoader)
                             throws CacheException

Sets the bootstrap cache loader.

Parameters:: bootstrapCacheLoader - the loader to be used
Throws:: CacheException - if this method is called after the cache is initialized

initialise

void initialise()

Newly created caches do not have a MemoryStore or a DiskStore.

This method creates those and makes the cache ready to accept elements

bootstrap

void bootstrap()

Bootstrap command. This must be called after the Cache is intialised, during CacheManager initialisation. If loads are synchronous, they will complete before the CacheManager initialise completes, otherwise they will happen in the background.

dispose

void dispose()
             throws IllegalStateException

Flushes all cache items from memory to auxilliary caches and close the auxilliary caches.

Should be invoked only by CacheManager.

Throws:: IllegalStateException - if the cache is not Status.STATUS_ALIVE

getCacheConfiguration

CacheConfiguration getCacheConfiguration()

Gets the cache configuration this cache was created with.

Things like listeners that are added dynamically are excluded.

registerCacheExtension

void registerCacheExtension(CacheExtension cacheExtension)

If the CacheExtension is not initialised, initialise it.

unregisterCacheExtension

void unregisterCacheExtension(CacheExtension cacheExtension)

Unregister a CacheExtension with the cache. It will then be detached from the cache lifecycle.

getRegisteredCacheExtensions

List<CacheExtension> getRegisteredCacheExtensions()

Returns:: the cache extensions as a live list

setCacheExceptionHandler

void setCacheExceptionHandler(CacheExceptionHandler cacheExceptionHandler)

Sets an ExceptionHandler on the Cache. If one is already set, it is overwritten.

getCacheExceptionHandler

CacheExceptionHandler getCacheExceptionHandler()

Sets an ExceptionHandler on the Cache. If one is already set, it is overwritten.

registerCacheLoader

void registerCacheLoader(CacheLoader cacheLoader)

The CacheLoader instance will be initialized when the cache itself is being initialized. Should the cache already be initialized, CacheLoader.init() will not be invoked. If the loader requires initialization, the user will have to call it manually before registering it with a Cache instance that's already alive

Parameters:: cacheLoader - A Cache Loader to register
Since:: While the javadoc has changed in 2.5.2, the behavior has not.

unregisterCacheLoader

void unregisterCacheLoader(CacheLoader cacheLoader)

Unregister a CacheLoader with the cache. It will then be detached from the cache lifecycle.

Parameters:: cacheLoader - A Cache Loader to unregister

getRegisteredCacheLoaders

List<CacheLoader> getRegisteredCacheLoaders()

Returns:: the cache loaders as a live list

registerDynamicAttributesExtractor

void registerDynamicAttributesExtractor(DynamicAttributesExtractor extractor)

Allows user to register a dynamic attribute extractor with a searchable cache that is dynamically indexable, as indicated by its configuration. Calling this method on such a cache is optional, but doing so more than once replaces previously registered extractor with the given one; i.e., there can be at most one extractor instance configured for each such cache. If the cache was not configured for dynamic indexing, an exception will be thrown

Parameters:: extractor -

registerCacheWriter

void registerCacheWriter(CacheWriter cacheWriter)

If the CacheWriter is not initialised, initialise it.

Parameters:: cacheWriter - A CacheWriter to register

unregisterCacheWriter

void unregisterCacheWriter()

Unregister the CacheWriter from the cache. It will then be detached from the cache lifecycle.

If not CacheWriter was registered beforehand this operation has no effect.

getRegisteredCacheWriter

CacheWriter getRegisteredCacheWriter()

Retrieves the CacheWriter that was registered for this cache.

Returns:: the registered CacheWriter; or null if none was registered before

getWithLoader

Element getWithLoader(Object key,
                      CacheLoader loader,
                      Object loaderArgument)
                      throws CacheException

This method will return, from the cache, the object associated with the argument "key".

If the object is not in the cache, the associated cache loader will be called. That is either the CacheLoader passed in, or if null, the one associated with the cache. If both are null, no load is performed and null is returned.

Because this method may take a long time to complete, it is not synchronized. The underlying cache operations are synchronized.

Parameters:: key - key whose associated value is to be returned.; loader - the override loader to use. If null, the cache's default loader will be used; loaderArgument - an argument to pass to the CacheLoader.
Returns:: an element if it existed or could be loaded, otherwise null
Throws:: CacheException

getAllWithLoader

Map getAllWithLoader(Collection keys,
                     Object loaderArgument)
                     throws CacheException

The getAll method will return, from the cache, a Map of the objects associated with the Collection of keys in argument "keys". If the objects are not in the cache, the associated cache loader will be called. If no loader is associated with an object, a null is returned. If a problem is encountered during the retrieving or loading of the objects, an exception will be thrown. If the "arg" argument is set, the arg object will be passed to the CacheLoader.loadAll method. The cache will not dereference the object. If no "arg" value is provided a null will be passed to the loadAll method. The storing of null values in the cache is permitted, however, the get method will not distinguish returning a null stored in the cache and not finding the object in the cache. In both cases a null is returned.

Note. If the getAll exceeds the maximum cache size, the returned map will necessarily be less than the number specified.

Because this method may take a long time to complete, it is not synchronized. The underlying cache operations are synchronized.

The constructs package provides similar functionality using the decorator SelfPopulatingCache

Parameters:: keys - a collection of keys to be returned/loaded; loaderArgument - an argument to pass to the CacheLoader.
Returns:: a Map populated from the Cache. If there are no elements, an empty Map is returned.
Throws:: CacheException

load

void load(Object key)
          throws CacheException

The load method provides a means to "pre load" the cache. This method will, asynchronously, load the specified object into the cache using the associated cacheloader. If the object already exists in the cache, no action is taken. If no loader is associated with the object, no object will be loaded into the cache. If a problem is encountered during the retrieving or loading of the object, an exception should be logged. If the "arg" argument is set, the arg object will be passed to the CacheLoader.load method. The cache will not dereference the object. If no "arg" value is provided a null will be passed to the load method. The storing of null values in the cache is permitted, however, the get method will not distinguish returning a null stored in the cache and not finding the object in the cache. In both cases a null is returned.

The Ehcache native API provides similar functionality to loaders using the decorator SelfPopulatingCache

Parameters:: key - key whose associated value to be loaded using the associated cacheloader if this cache doesn't contain it.
Throws:: CacheException

loadAll

void loadAll(Collection keys,
             Object argument)
             throws CacheException

The loadAll method provides a means to "pre load" objects into the cache. This method will, asynchronously, load the specified objects into the cache using the associated cache loader. If the an object already exists in the cache, no action is taken. If no loader is associated with the object, no object will be loaded into the cache. If a problem is encountered during the retrieving or loading of the objects, an exception (to be defined) should be logged. The getAll method will return, from the cache, a Map of the objects associated with the Collection of keys in argument "keys". If the objects are not in the cache, the associated cache loader will be called. If no loader is associated with an object, a null is returned. If a problem is encountered during the retrieving or loading of the objects, an exception (to be defined) will be thrown. If the "arg" argument is set, the arg object will be passed to the CacheLoader.loadAll method. The cache will not dereference the object. If no "arg" value is provided a null will be passed to the loadAll method.

keys - collection of the keys whose associated values to be loaded into this cache by using the associated cacheloader if this cache doesn't contain them.

The Ehcache native API provides similar functionality to loaders using the decorator SelfPopulatingCache

Throws:: CacheException

isDisabled

boolean isDisabled()

Whether this cache is disabled. "Disabled" means:

bootstrap is disabled
puts are discarded
putQuites are discarded

In all other respects the cache continues as it is.

You can disable and enable a cache programmatically through the setDisabled(boolean) method.

Returns:: true if the cache is disabled.

setDisabled

void setDisabled(boolean disabled)

Disables or enables this cache. This call overrides the previous value of disabled.

Parameters:: disabled - true if you wish to disable, false to enable
See Also:: isDisabled()

getInternalContext

Object getInternalContext()

This should not be used return some internal context (generally will be null)

disableDynamicFeatures

void disableDynamicFeatures()

Disables dynamic configuration and disable/enable for this cache.

This is a one time operation. Once an Ehcache instance has had its dynamic operations disabled they cannot be re-enabled.

getWriterManager

CacheWriterManager getWriterManager()

Obtain the writer manager that's used by this cache instance.

Returns:: the writer manager that's set up for this cache

isClusterCoherent

@Deprecated
boolean isClusterCoherent()
                          throws TerracottaNotRunningException

Deprecated. Use isClusterBulkLoadEnabled() instead

Returns true if the cache is in coherent mode cluster-wide. Returns false otherwise.

It applies to coherent clustering mechanisms only e.g. Terracotta

Returns:: true if the cache is in coherent mode cluster-wide, false otherwise
Throws:: TerracottaNotRunningException

isNodeCoherent

@Deprecated
boolean isNodeCoherent()
                       throws TerracottaNotRunningException

Deprecated. Use isNodeBulkLoadEnabled() instead

Returns true if the cache is in coherent mode for the current node. Returns false otherwise.

It applies to coherent clustering mechanisms only e.g. Terracotta

Returns:: true if the cache is in coherent mode cluster-wide, false otherwise
Throws:: TerracottaNotRunningException

setNodeCoherent

@Deprecated
void setNodeCoherent(boolean coherent)
                     throws UnsupportedOperationException,
                            TerracottaNotRunningException

Deprecated. Use setNodeBulkLoadEnabled(boolean) instead

Sets the cache in coherent or incoherent mode depending on the parameter on this node. Calling setNodeCoherent(true) when the cache is already in coherent mode or calling setNodeCoherent(false) when already in incoherent mode will be a no-op.

It applies to coherent clustering mechanisms only e.g. Terracotta

When using Terracotta clustered caches with nonstop enabled, the timeout used by this method is NonstopConfiguration.getBulkOpsTimeoutMultiplyFactor() times the timeout value in the config.

Parameters:: coherent - true transitions to coherent mode, false to incoherent mode
Throws:: UnsupportedOperationException - if this cache does not support coherence, like RMI replication; TerracottaNotRunningException

waitUntilClusterCoherent

@Deprecated
void waitUntilClusterCoherent()
                              throws UnsupportedOperationException,
                                     TerracottaNotRunningException

Deprecated. Use waitUntilClusterBulkLoadComplete() instead

This method waits until the cache is in coherent mode in all the connected nodes. If the cache is already in coherent mode it returns immediately

It applies to coherent clustering mechanisms only e.g. Terracotta

Throws:: UnsupportedOperationException - if this cache does not support coherence, like RMI replication; TerracottaNotRunningException

setTransactionManagerLookup

void setTransactionManagerLookup(TransactionManagerLookup transactionManagerLookup)

This class is used to access the transaction manager used during XA.

Parameters:: transactionManagerLookup -

addPropertyChangeListener

void addPropertyChangeListener(PropertyChangeListener listener)

Add a PropertyChangeListener.

Parameters:: listener -

removePropertyChangeListener

void removePropertyChangeListener(PropertyChangeListener listener)

Remove a PropertyChangeListener.

Parameters:: listener -

getSearchAttribute

<T> Attribute<T> getSearchAttribute(String attributeName)
                                throws CacheException

Retrieve the given named search attribute

Type Parameters:: T - type of the attribute
Parameters:: attributeName - the name of the attribute to retrieve
Returns:: the search attribute
Throws:: CacheException - if no such attribute is defined for the given name

getSearchAttributes

Set<Attribute> getSearchAttributes()
                                   throws CacheException

Returns:: set of all search attributes in effect at the time of calling this method
Throws:: CacheException

createQuery

Query createQuery()

Create a new query builder for this cache

Returns:: a new query builder

isSearchable

boolean isSearchable()

Is this cache searchable?

Returns:: true if this cache is searchable

acquireReadLockOnKey

void acquireReadLockOnKey(Object key)

Acquires the proper read lock for a given cache key

Parameters:: key - - The key that retrieves a value that you want to protect via locking

acquireWriteLockOnKey

void acquireWriteLockOnKey(Object key)

Acquires the proper write lock for a given cache key

Parameters:: key - - The key that retrieves a value that you want to protect via locking

tryReadLockOnKey

boolean tryReadLockOnKey(Object key,
                         long timeout)
                         throws InterruptedException

Try to get a read lock on a given key. If can't get it in timeout millis then return a boolean telling that it didn't get the lock

Parameters:: key - - The key that retrieves a value that you want to protect via locking; timeout - - millis until giveup on getting the lock
Returns:: whether the lock was awarded
Throws:: InterruptedException

tryWriteLockOnKey

boolean tryWriteLockOnKey(Object key,
                          long timeout)
                          throws InterruptedException

Try to get a write lock on a given key. If can't get it in timeout millis then return a boolean telling that it didn't get the lock

Parameters:: key - - The key that retrieves a value that you want to protect via locking; timeout - - millis until giveup on getting the lock
Returns:: whether the lock was awarded
Throws:: InterruptedException

releaseReadLockOnKey

void releaseReadLockOnKey(Object key)

Release a held read lock for the passed in key

Parameters:: key - - The key that retrieves a value that you want to protect via locking

releaseWriteLockOnKey

void releaseWriteLockOnKey(Object key)

Release a held write lock for the passed in key

Parameters:: key - - The key that retrieves a value that you want to protect via locking

isReadLockedByCurrentThread

boolean isReadLockedByCurrentThread(Object key)
                                    throws UnsupportedOperationException

Returns true if a read lock for the key is held by the current thread

Parameters:: key -
Returns:: true if a read lock for the key is held by the current thread
Throws:: UnsupportedOperationException - if querying the read lock state is not supported

isWriteLockedByCurrentThread

boolean isWriteLockedByCurrentThread(Object key)
                                     throws UnsupportedOperationException

Returns true if a write lock for the key is held by the current thread

Parameters:: key -
Returns:: true if a write lock for the key is held by the current thread
Throws:: UnsupportedOperationException - if querying the write lock state is not supported

isClusterBulkLoadEnabled

boolean isClusterBulkLoadEnabled()
                                 throws UnsupportedOperationException,
                                        TerracottaNotRunningException

Returns true if at least one node in the cluster is in bulk-load mode. Returns false otherwise.

NOTE: if isNodeBulkLoadEnabled() returns true, this method will always return true. Applies to caches clustered with Terracotta only.

Returns:: true if the cache is in bulk-load mode cluster-wide, false otherwise
Throws:: UnsupportedOperationException - if the cache is not clustered with Terracotta; TerracottaNotRunningException

isNodeBulkLoadEnabled

boolean isNodeBulkLoadEnabled()
                              throws UnsupportedOperationException,
                                     TerracottaNotRunningException

Returns true if the current node is in bulk-load mode. Returns false otherwise.

NOTE: if this method returns true, isClusterBulkLoadEnabled() method will always return true. Applies to caches clustered with Terracotta only.

Returns:: true if the cache is in coherent mode cluster-wide, false otherwise
Throws:: UnsupportedOperationException - if the cache is not clustered with Terracotta; TerracottaNotRunningException

setNodeBulkLoadEnabled

void setNodeBulkLoadEnabled(boolean enabledBulkLoad)
                            throws UnsupportedOperationException,
                                   TerracottaNotRunningException

Enable/disable bulk-load mode in this node for this cache. Calling setBulkLoadEnabled(true) when the cache is already in bulk-load mode or calling setBulkLoadEnabled(false) when already NOT in bulk-load mode will be a no-op.

Applies to caches clustered with Terracotta only.

When using Terracotta clustered caches with nonstop enabled, the timeout used by this method is NonstopConfiguration.getBulkOpsTimeoutMultiplyFactor() times the timeout value in the nonstop config.

Parameters:: enabledBulkLoad - true enables bulk-load, false disables it if not already disabled
Throws:: UnsupportedOperationException - if the cache is not clustered with Terracotta; TerracottaNotRunningException

waitUntilClusterBulkLoadComplete

void waitUntilClusterBulkLoadComplete()
                                      throws UnsupportedOperationException,
                                             TerracottaNotRunningException

This method waits until all the connected nodes have disabled bulk-load. Or in other words, calling this method will block until all connected nodes in the cluster disables bulk-load. If none of the nodes did not enable bulk-load this method will return immediately

Applies to caches clustered with Terracotta only.

Throws:: UnsupportedOperationException - if the cache is not clustered with Terracotta; TerracottaNotRunningException

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net.sf.ehcache Interface Ehcache

put

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put

putQuiet

putWithWriter

putIfAbsent

putIfAbsent

removeElement

replace

replace

get

get

getAll

getQuiet

getQuiet

getKeys

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remove

remove

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remove

removeQuiet

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removeAll

flush

getSize

calculateInMemorySize

calculateOffHeapSize

calculateOnDiskSize

hasAbortedSizeOf

getMemoryStoreSize

getOffHeapStoreSize

getDiskStoreSize

getStatus

getName

setName

toString

isExpired

clone

getCacheEventNotificationService

isElementInMemory

isElementInMemory

isElementOnDisk

isElementOnDisk

getGuid

getCacheManager

evictExpiredElements

isKeyInCache

isValueInCache

getStatistics

Best Effort Size

Guaranteed Accuracy Size

Fast but non-accurate Size

setCacheManager

getBootstrapCacheLoader

setBootstrapCacheLoader

initialise

bootstrap

dispose

getCacheConfiguration

registerCacheExtension

unregisterCacheExtension

getRegisteredCacheExtensions

setCacheExceptionHandler

getCacheExceptionHandler

registerCacheLoader

unregisterCacheLoader

getRegisteredCacheLoaders

registerDynamicAttributesExtractor

registerCacheWriter

unregisterCacheWriter

getRegisteredCacheWriter

getWithLoader

getAllWithLoader

net.sf.ehcache
Interface Ehcache