Package com.j_spaces.core.cache

Class EvictableEntryCacheInfo

java.lang.Object

com.j_spaces.core.cache.MemoryBasedEntryCacheInfo

com.j_spaces.core.cache.EvictableEntryCacheInfo

All Implemented Interfaces:

IHashEntry<Object,IStoredList<IEntryCacheInfo>>, EvictableServerEntry, ServerEntry, IEntryCacheInfo, ILeasedEntryCacheInfo, ICollection<IEntryCacheInfo>, IObjectInfo<IEntryCacheInfo>, IStoredList<IEntryCacheInfo>, IStoredListIterator<IEntryCacheInfo>, IObjectsList, IScanListIterator<IEntryCacheInfo>

public class EvictableEntryCacheInfo
extends MemoryBasedEntryCacheInfo
implements EvictableServerEntry

Since:

5.0

Version:

1.0

Author:

Yechiel Fefer

Field Summary

Fields inherited from class com.j_spaces.core.cache.MemoryBasedEntryCacheInfo

UID_HASH_INDICATOR

Constructor Summary

Constructors

Constructor	Description
EvictableEntryCacheInfo(IEntryHolder entryHolder)
EvictableEntryCacheInfo(IEntryHolder entryHolder, int backRefsSize)
EvictableEntryCacheInfo(IEntryHolder entryHolder, int backRefsSize, boolean pinned)

Method Summary

Modifier and Type	Method	Description
void	afterCallingEvictionStrategy()	returned from call to E.S., notify remover if waiting
Object	getEvictionPayLoad()	in order to avoid searching the eviction handler data structures when an existing entry is rendered to it by the space cache manager, the eviction-handler may store a backref to the entry in it data structure and retrieve it later
boolean	isInCache()
boolean	isInEvictionStrategy()
boolean	isInserted()
boolean	isPinned()
boolean	isRecentDelete()
boolean	isRemoved()
boolean	isRemovedFromEvictionStrategy()
boolean	isRemoving()
boolean	isRemovingOrRemoved()
void	notifyWaitersOnFailure()
boolean	permitCallingEvictionStrategy()	can eviction strategy be called ?
void	setEvictionPayLoad(Object evictionBackRef)	in order to avoid searching the eviction handler data structures when an existing entry is rendered to it by the space cache manager, the eviction-handler may store a backref to the entry in it data structure and retrieve it later
void	setInCache(boolean checkPendingPin)
void	setInEvictionStrategy()
boolean	setPinned(boolean value)
boolean	setPinned(boolean value, boolean waitIfPendingInsertion)
void	setRecentDelete()
void	setRemoved()
void	setRemovedFromEvictionStrategy(boolean checkWaiters)
boolean	setRemoving(boolean isPinned)
void	verifyBeforeEntryRemoval()
void	verifyEntryRemovedFromStrategy()
boolean	wasInserted()

Methods inherited from class com.j_spaces.core.cache.MemoryBasedEntryCacheInfo

add, addUnlocked, contains, dump, establishListScan, freeSLHolder, getAlreadyMatchedFixedPropertyIndexPos, getBackRefs, getClassName, getEntryHolder, getEntryHolder, getEntryHolder, getExpirationTime, getFixedPropertyValue, getHashCode, getHead, getKey, getLatestIndexCreationNumber, getLeaseManagerListRef, getLeaseManagerPosition, getMainListBackRef, getObjectFromHead, getObjectStoredInLeaseManager, getPathValue, getPropertyValue, getServerTypeDesc, getSpaceTypeDescriptor, getSubject, getUID, getValue, getVersion, hasNext, indexesBackRefsKept, invalidate, isAlreadyMatched, isBlobStoreEntry, isConnectedToLeaseManager, isDeleted, isEmpty, isIterator, isMultiObjectCollection, isNativeHashEntry, isSameLeaseManagerRef, isTransient, next, next, optimizeScanForSingleObject, preMatch, release, releaseScan, remove, removeByObject, removeUnlocked, setBackRefs, setLatestIndexCreationNumber, setLeaseManagerListRefAndPosition, setMainListBackRef, setSubject

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.gigaspaces.server.eviction.EvictableServerEntry

getUID

Methods inherited from interface com.j_spaces.kernel.ICollection

establishListScan

Methods inherited from interface com.j_spaces.core.cache.IEntryCacheInfo

hasSize, size

Methods inherited from interface com.j_spaces.kernel.list.IScanListIterator

createCopyForAlternatingThread, getAlreadyMatchedIndexPath, isExtensionIndex, isMultiListsIterator, noRematchNeeded

Methods inherited from interface com.gigaspaces.server.ServerEntry

getExpirationTime, getFixedPropertyValue, getPathValue, getPropertyValue, getSpaceTypeDescriptor, getVersion

Constructor Details

EvictableEntryCacheInfo

public EvictableEntryCacheInfo(IEntryHolder entryHolder)

EvictableEntryCacheInfo

public EvictableEntryCacheInfo(IEntryHolder entryHolder,
 int backRefsSize)

EvictableEntryCacheInfo

public EvictableEntryCacheInfo(IEntryHolder entryHolder,
 int backRefsSize,
 boolean pinned)

Method Details

setEvictionPayLoad

public void setEvictionPayLoad(Object evictionBackRef)

in order to avoid searching the eviction handler data structures when an existing entry is rendered to it by the space cache manager, the eviction-handler may store a backref to the entry in it data structure and retrieve it later

Specified by:

setEvictionPayLoad in interface EvictableServerEntry

Overrides:

setEvictionPayLoad in class MemoryBasedEntryCacheInfo

getEvictionPayLoad

public Object getEvictionPayLoad()

in order to avoid searching the eviction handler data structures when an existing entry is rendered to it by the space cache manager, the eviction-handler may store a backref to the entry in it data structure and retrieve it later

Specified by:

getEvictionPayLoad in interface EvictableServerEntry

Overrides:

getEvictionPayLoad in class MemoryBasedEntryCacheInfo

Returns:

the eviction back-ref to the entry, or null if not stored

setPinned

public boolean setPinned(boolean value,
 boolean waitIfPendingInsertion)

Specified by:

setPinned in interface IEntryCacheInfo

Overrides:

setPinned in class MemoryBasedEntryCacheInfo

setPinned

public boolean setPinned(boolean value)

Specified by:

setPinned in interface IEntryCacheInfo

Overrides:

setPinned in class MemoryBasedEntryCacheInfo

isPinned

public boolean isPinned()

Specified by:

isPinned in interface IEntryCacheInfo

Overrides:

isPinned in class MemoryBasedEntryCacheInfo

isRemoving

public boolean isRemoving()

Specified by:

isRemoving in interface IEntryCacheInfo

Overrides:

isRemoving in class MemoryBasedEntryCacheInfo

setRemoving

public boolean setRemoving(boolean isPinned)

Specified by:

setRemoving in interface IEntryCacheInfo

Overrides:

setRemoving in class MemoryBasedEntryCacheInfo

setRemoved

public void setRemoved()

Specified by:

setRemoved in interface IEntryCacheInfo

Overrides:

setRemoved in class MemoryBasedEntryCacheInfo

isRemoved

public boolean isRemoved()

Specified by:

isRemoved in interface IEntryCacheInfo

Overrides:

isRemoved in class MemoryBasedEntryCacheInfo

isRemovingOrRemoved

public boolean isRemovingOrRemoved()

Specified by:

isRemovingOrRemoved in interface IEntryCacheInfo

Overrides:

isRemovingOrRemoved in class MemoryBasedEntryCacheInfo

notifyWaitersOnFailure

public void notifyWaitersOnFailure()

verifyEntryRemovedFromStrategy

public void verifyEntryRemovedFromStrategy()

setInCache

public void setInCache(boolean checkPendingPin)

Specified by:

setInCache in interface IEntryCacheInfo

Overrides:

setInCache in class MemoryBasedEntryCacheInfo

isInCache

public boolean isInCache()

Overrides:

isInCache in class MemoryBasedEntryCacheInfo

isInserted

public boolean isInserted()

Overrides:

isInserted in class MemoryBasedEntryCacheInfo

wasInserted

public boolean wasInserted()

Specified by:

wasInserted in interface IEntryCacheInfo

Overrides:

wasInserted in class MemoryBasedEntryCacheInfo

isRecentDelete

public boolean isRecentDelete()

Specified by:

isRecentDelete in interface IEntryCacheInfo

Overrides:

isRecentDelete in class MemoryBasedEntryCacheInfo

setRecentDelete

public void setRecentDelete()

Specified by:

setRecentDelete in interface IEntryCacheInfo

Overrides:

setRecentDelete in class MemoryBasedEntryCacheInfo

isRemovedFromEvictionStrategy

public boolean isRemovedFromEvictionStrategy()

setRemovedFromEvictionStrategy

public void setRemovedFromEvictionStrategy(boolean checkWaiters)

isInEvictionStrategy

public boolean isInEvictionStrategy()

setInEvictionStrategy

public void setInEvictionStrategy()

verifyBeforeEntryRemoval

public void verifyBeforeEntryRemoval()

permitCallingEvictionStrategy

public boolean permitCallingEvictionStrategy()

can eviction strategy be called ?

Returns:

true if E.S. can be called

afterCallingEvictionStrategy

public void afterCallingEvictionStrategy()

returned from call to E.S., notify remover if waiting