Package org.infinispan.container.entries

Interface CacheEntry<K,V>

All Superinterfaces:

java.lang.Cloneable, java.util.Map.Entry<K,V>, MetadataAware

All Known Subinterfaces:

InternalCacheEntry<K,V>, MVCCEntry<K,V>

All Known Implementing Classes:

AbstractInternalCacheEntry, ClearCacheEntry, EntryWrapper, ForwardingCacheEntry, ImmortalCacheEntry, L1InternalCacheEntry, L1MetadataInternalCacheEntry, MetadataImmortalCacheEntry, MetadataMortalCacheEntry, MetadataTransientCacheEntry, MetadataTransientMortalCacheEntry, MortalCacheEntry, NullCacheEntry, ReadCommittedEntry, RepeatableReadEntry, TransientCacheEntry, TransientMortalCacheEntry, VersionedRepeatableReadEntry

public interface CacheEntry<K,V>
extends java.lang.Cloneable, java.util.Map.Entry<K,V>, MetadataAware

An entry that is stored in the data container

Since:

4.0

Author:

Manik Surtani, Galder Zamarreño

Method Summary

Modifier and Type	Method	Description
CacheEntry<K,V>	clone()
void	commit(DataContainer<K,V> container)	Commits changes
default long	getCreated()
K	getKey()	Retrieves the key to this entry
default long	getLastUsed()
long	getLifespan()
long	getMaxIdle()
V	getValue()	Retrieves the value of this entry
boolean	isChanged()
boolean	isCreated()
boolean	isEvicted()
boolean	isNull()	Tests whether the entry represents a null value, typically used for repeatable read.
boolean	isRemoved()
void	setChanged(boolean changed)
void	setCreated(boolean created)
default void	setCreated(long created)
void	setEvicted(boolean evicted)
default void	setLastUsed(long lastUsed)
void	setRemoved(boolean removed)
void	setSkipLookup(boolean skipLookup)	See skipLookup().
V	setValue(V value)	Sets the value of the entry, returning the previous value
boolean	skipLookup()

Methods inherited from interface java.util.Map.Entry

equals, hashCode

Methods inherited from interface org.infinispan.container.entries.metadata.MetadataAware

getMetadata, setMetadata

Method Detail

isNull

boolean isNull()

Tests whether the entry represents a null value, typically used for repeatable read.

Returns:

true if this represents a null, false otherwise.

isChanged

boolean isChanged()

Returns:

true if this entry has changed since being read from the container, false otherwise.

isCreated

boolean isCreated()

Returns:

true if this entry has been newly created, false otherwise.

isRemoved

boolean isRemoved()

Returns:

true if this entry has been removed since being read from the container, false otherwise.

isEvicted

boolean isEvicted()

Returns:

true if this entry has been evicted since being read from the container, false otherwise.

getKey

K getKey()

Retrieves the key to this entry

Specified by:

getKey in interface java.util.Map.Entry<K,V>

Returns:

a key

getValue

V getValue()

Retrieves the value of this entry

Specified by:

getValue in interface java.util.Map.Entry<K,V>

Returns:

the value of the entry

getLifespan

long getLifespan()

Returns:

retrieves the lifespan of this entry. -1 means an unlimited lifespan.

getMaxIdle

long getMaxIdle()

Returns:

the maximum allowed time for which this entry can be idle, after which it is considered expired.

skipLookup

boolean skipLookup()

Returns:

true if the value must not be fetch from an external source

getCreated

default long getCreated()

Returns:

timestamp when the entry was created

getLastUsed

default long getLastUsed()

Returns:

timestamp when the entry was last used

setValue

V setValue(V value)

Sets the value of the entry, returning the previous value

Specified by:

setValue in interface java.util.Map.Entry<K,V>

Parameters:

value - value to set

Returns:

previous value

commit

void commit(DataContainer<K,V> container)

Commits changes

Parameters:

container - data container to commit to

setChanged

void setChanged(boolean changed)

setCreated

void setCreated(boolean created)

setRemoved

void setRemoved(boolean removed)

setEvicted

void setEvicted(boolean evicted)

setSkipLookup

void setSkipLookup(boolean skipLookup)

See skipLookup().

Parameters:

skipLookup -

clone

CacheEntry<K,V> clone()

setCreated

default void setCreated(long created)

setLastUsed

default void setLastUsed(long lastUsed)