com.hazelcast.map.impl.record

Class AbstractRecord<V>

java.lang.Object

com.hazelcast.map.impl.record.AbstractRecord<V>

Type Parameters:

V - the type of the value of Record.

All Implemented Interfaces:

Record<V>

public abstract class AbstractRecord<V>
extends Object
implements Record<V>

Field Summary

Fields

Modifier and Type	Field and Description
static long	EPOCH_TIME Base time to be used for storing time values as diffs (int) rather than full blown epoch based vals (long) This allows for a space in seconds, of roughly 68 years.
protected long	hits
protected Data	key
protected int	maxIdle
protected int	ttl
protected long	version

Fields inherited from interface com.hazelcast.map.impl.record.Record

NOT_AVAILABLE, NOT_CACHED

Method Summary

Modifier and Type	Method and Description
boolean	casCachedValue(Object expectedValue, Object newValue) Atomically sets the cached value to the given new value if the current cached value == the expected value.
boolean	equals(Object o)
Object	getCachedValueUnsafe() Get current cache value or null.
long	getCost() Returns heap cost of this record in bytes.
long	getCreationTime()
long	getExpirationTime()
long	getHits()
Data	getKey()
long	getLastAccessTime()
long	getLastStoredTime()
long	getLastUpdateTime()
long	getMaxIdle()
Metadata	getMetadata()
long	getSequence() Only used for Hot Restart, HDRecord
long	getTtl()
long	getVersion()
int	hashCode()
void	onAccess(long now)
void	onStore()
void	onUpdate(long now)
protected long	recomputeWithBaseTime(int value)
void	setCreationTime(long creationTime)
void	setExpirationTime(long expirationTime)
void	setHits(long hits)
void	setKey(Data key)
void	setLastAccessTime(long lastAccessTime)
void	setLastStoredTime(long lastStoredTime)
void	setLastUpdateTime(long lastUpdateTime)
void	setMaxIdle(long maxIdle)
void	setMetadata(Metadata metadata)
void	setSequence(long sequence) Only used for Hot Restart, HDRecord
void	setTtl(long ttl)
void	setVersion(long version)
protected int	stripBaseTime(long value)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hazelcast.map.impl.record.Record

getValue, setValue

Field Detail

EPOCH_TIME

public static final long EPOCH_TIME

Base time to be used for storing time values as diffs (int) rather than full blown epoch based vals (long) This allows for a space in seconds, of roughly 68 years. Reference value (1514764800000) - Monday, January 1, 2018 12:00:00 AM The fixed time in the past (instead of System.currentTimeMillis() prevents any time discrepancies among nodes, mis-translated as diffs of -1 ie. Record.NOT_AVAILABLE values. (see. https://github.com/hazelcast/hazelcast-enterprise/issues/2527)

key

protected Data key

version

protected long version

ttl

protected int ttl

maxIdle

protected int maxIdle

hits

protected volatile long hits

Method Detail

setMetadata

public void setMetadata(Metadata metadata)

Specified by:

setMetadata in interface Record<V>

getMetadata

public Metadata getMetadata()

Specified by:

getMetadata in interface Record<V>

getVersion

public final long getVersion()

Specified by:

getVersion in interface Record<V>

setVersion

public final void setVersion(long version)

Specified by:

setVersion in interface Record<V>

getTtl

public long getTtl()

Specified by:

getTtl in interface Record<V>

setTtl

public void setTtl(long ttl)

Specified by:

setTtl in interface Record<V>

getMaxIdle

public long getMaxIdle()

Specified by:

getMaxIdle in interface Record<V>

setMaxIdle

public void setMaxIdle(long maxIdle)

Specified by:

setMaxIdle in interface Record<V>

getLastAccessTime

public long getLastAccessTime()

Specified by:

getLastAccessTime in interface Record<V>

setLastAccessTime

public void setLastAccessTime(long lastAccessTime)

Specified by:

setLastAccessTime in interface Record<V>

getLastUpdateTime

public long getLastUpdateTime()

Specified by:

getLastUpdateTime in interface Record<V>

setLastUpdateTime

public void setLastUpdateTime(long lastUpdateTime)

Specified by:

setLastUpdateTime in interface Record<V>

getCreationTime

public long getCreationTime()

Specified by:

getCreationTime in interface Record<V>

setCreationTime

public void setCreationTime(long creationTime)

Specified by:

setCreationTime in interface Record<V>

getHits

public long getHits()

Specified by:

getHits in interface Record<V>

setHits

public void setHits(long hits)

Specified by:

setHits in interface Record<V>

getCost

public long getCost()

Description copied from interface: Record

Returns heap cost of this record in bytes.

Specified by:

getCost in interface Record<V>

Returns:

heap cost of this record in bytes.

onUpdate

public void onUpdate(long now)

Specified by:

onUpdate in interface Record<V>

getCachedValueUnsafe

public Object getCachedValueUnsafe()

Description copied from interface: Record

Get current cache value or null.

Warning: Do not use this method directly as it might expose arbitrary objects acting as a lock. Use Records.getCachedValue(Record) instead.

Specified by:

getCachedValueUnsafe in interface Record<V>

Returns:

current cached value or null or cached record mutex.

onAccess

public void onAccess(long now)

Specified by:

onAccess in interface Record<V>

onStore

public void onStore()

Specified by:

onStore in interface Record<V>

casCachedValue

public boolean casCachedValue(Object expectedValue,
                              Object newValue)

Description copied from interface: Record

Atomically sets the cached value to the given new value if the current cached value == the expected value.

Specified by:

casCachedValue in interface Record<V>

Parameters:

expectedValue - the expected cached value

newValue - the new cached value

Returns:

true if successful. False return indicates that the actual cached value was not equal to the expected cached value.

getKey

public Data getKey()

Specified by:

getKey in interface Record<V>

setKey

public void setKey(Data key)

Specified by:

setKey in interface Record<V>

getSequence

public final long getSequence()

Description copied from interface: Record

Only used for Hot Restart, HDRecord

Specified by:

getSequence in interface Record<V>

Returns:

setSequence

public final void setSequence(long sequence)

Description copied from interface: Record

Only used for Hot Restart, HDRecord

Specified by:

setSequence in interface Record<V>

getExpirationTime

public long getExpirationTime()

Specified by:

getExpirationTime in interface Record<V>

setExpirationTime

public void setExpirationTime(long expirationTime)

Specified by:

setExpirationTime in interface Record<V>

getLastStoredTime

public long getLastStoredTime()

Specified by:

getLastStoredTime in interface Record<V>

setLastStoredTime

public void setLastStoredTime(long lastStoredTime)

Specified by:

setLastStoredTime in interface Record<V>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

recomputeWithBaseTime

protected long recomputeWithBaseTime(int value)

stripBaseTime

protected int stripBaseTime(long value)