com.hazelcast.internal.nearcache.impl.record

Class AbstractNearCacheRecord<V>

java.lang.Object

com.hazelcast.internal.nearcache.impl.record.AbstractNearCacheRecord<V>

Type Parameters:

V - the type of the value stored by this AbstractNearCacheRecord

All Implemented Interfaces:

Evictable<V>, Expirable, NearCacheRecord<V>

Direct Known Subclasses:

NearCacheDataRecord, NearCacheObjectRecord

public abstract class AbstractNearCacheRecord<V>
extends Object
implements NearCacheRecord<V>

Abstract implementation of NearCacheRecord with value and expiration time as internal state.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	accessHit
protected long	accessTime
protected long	creationTime
protected long	expirationTime
static int	NUMBER_OF_INTEGER_FIELD_TYPES
static int	NUMBER_OF_LONG_FIELD_TYPES
protected long	recordState
protected long	sequence
protected UUID	uuid
protected V	value

Fields inherited from interface com.hazelcast.internal.nearcache.NearCacheRecord

NOT_RESERVED, READ_PERMITTED, RESERVED, TIME_NOT_SET, UPDATE_STARTED

Constructor Summary

Constructors

Constructor and Description
AbstractNearCacheRecord(V value, long creationTime, long expirationTime)

Method Summary

Modifier and Type	Method and Description
boolean	casRecordState(long expect, long update)
int	getAccessHit() Gets the access hit count of this Evictable.
long	getCreationTime() Gets the creation time of this Evictable in milliseconds.
long	getExpirationTime() Gets the expiration time in milliseconds.
long	getInvalidationSequence()
long	getLastAccessTime() Gets the latest access time difference of this Evictable in milliseconds.
long	getRecordState()
V	getValue() Gets the value of this Evictable.
boolean	hasSameUuid(UUID thatUuid)
void	incrementAccessHit() Increases the access hit count of this Evictable by 1.
boolean	isExpiredAt(long now) Checks whether the expiration time is passed with respect to the provided time.
boolean	isIdleAt(long maxIdleMilliSeconds, long now) Checks whether the maximum idle time is passed with respect to the provided time without any access during this time period as maxIdleSeconds.
void	resetAccessHit() Resets the access hit count of this Evictable to 0.
void	setAccessHit(int accessHit) Sets the access hit count of this Evictable.
void	setAccessTime(long accessTime) Sets the access time of this Evictable in milliseconds.
void	setCreationTime(long creationTime) Sets the creation time of this Evictable in milliseconds.
void	setExpirationTime(long expirationTime) Sets the expiration time in milliseconds.
void	setInvalidationSequence(long sequence)
void	setUuid(UUID uuid)
void	setValue(V value) Sets the value of this NearCacheRecord.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NUMBER_OF_LONG_FIELD_TYPES

public static final int NUMBER_OF_LONG_FIELD_TYPES

See Also:

Constant Field Values

NUMBER_OF_INTEGER_FIELD_TYPES

public static final int NUMBER_OF_INTEGER_FIELD_TYPES

See Also:

Constant Field Values

creationTime

protected long creationTime

sequence

protected long sequence

uuid

protected UUID uuid

value

protected volatile V value

expirationTime

protected volatile long expirationTime

accessTime

protected volatile long accessTime

recordState

protected volatile long recordState

accessHit

protected volatile int accessHit

Constructor Detail

AbstractNearCacheRecord

public AbstractNearCacheRecord(V value,
                               long creationTime,
                               long expirationTime)

Method Detail

getValue

public V getValue()

Description copied from interface: Evictable

Gets the value of this Evictable.

Specified by:

getValue in interface Evictable<V>

Returns:

the value of this Evictable

setValue

public void setValue(V value)

Description copied from interface: NearCacheRecord

Sets the value of this NearCacheRecord.

Specified by:

setValue in interface NearCacheRecord<V>

Parameters:

value - the value for this NearCacheRecord

getExpirationTime

public long getExpirationTime()

Description copied from interface: Expirable

Gets the expiration time in milliseconds.

Specified by:

getExpirationTime in interface Expirable

Returns:

expiration time.

See Also:

System.currentTimeMillis()

setExpirationTime

public void setExpirationTime(long expirationTime)

Description copied from interface: Expirable

Sets the expiration time in milliseconds.

Specified by:

setExpirationTime in interface Expirable

See Also:

System.currentTimeMillis()

getCreationTime

public long getCreationTime()

Description copied from interface: Evictable

Gets the creation time of this Evictable in milliseconds.

Specified by:

getCreationTime in interface Evictable<V>

Returns:

the creation time of this Evictable in milliseconds

setCreationTime

public void setCreationTime(long creationTime)

Description copied from interface: NearCacheRecord

Sets the creation time of this Evictable in milliseconds.

Specified by:

setCreationTime in interface NearCacheRecord<V>

Parameters:

creationTime - the creation time for this Evictable in milliseconds

getLastAccessTime

public long getLastAccessTime()

Description copied from interface: Evictable

Gets the latest access time difference of this Evictable in milliseconds.

Specified by:

getLastAccessTime in interface Evictable<V>

Returns:

the latest access time of this Evictable in milliseconds

setAccessTime

public void setAccessTime(long accessTime)

Description copied from interface: NearCacheRecord

Sets the access time of this Evictable in milliseconds.

Specified by:

setAccessTime in interface NearCacheRecord<V>

Parameters:

accessTime - the latest access time of this Evictable in milliseconds

getAccessHit

public int getAccessHit()

Description copied from interface: Evictable

Gets the access hit count of this Evictable.

Specified by:

getAccessHit in interface Evictable<V>

Returns:

the access hit count of this Evictable

setAccessHit

public void setAccessHit(int accessHit)

Description copied from interface: NearCacheRecord

Sets the access hit count of this Evictable.

Specified by:

setAccessHit in interface NearCacheRecord<V>

Parameters:

accessHit - the access hit count for this Evictable

incrementAccessHit

public void incrementAccessHit()

Description copied from interface: NearCacheRecord

Increases the access hit count of this Evictable by 1.

Specified by:

incrementAccessHit in interface NearCacheRecord<V>

resetAccessHit

public void resetAccessHit()

Description copied from interface: NearCacheRecord

Resets the access hit count of this Evictable to 0.

Specified by:

resetAccessHit in interface NearCacheRecord<V>

isExpiredAt

public boolean isExpiredAt(long now)

Description copied from interface: Expirable

Checks whether the expiration time is passed with respect to the provided time.

Returns true if and only if now > getExpirationTime()

.

Specified by:

isExpiredAt in interface Expirable

Parameters:

now - time in milliseconds.

Returns:

true if expired.

getInvalidationSequence

public long getInvalidationSequence()

Specified by:

getInvalidationSequence in interface NearCacheRecord<V>

Returns:

last known invalidation sequence at time of this records' creation

setInvalidationSequence

public void setInvalidationSequence(long sequence)

Specified by:

setInvalidationSequence in interface NearCacheRecord<V>

Parameters:

sequence - last known invalidation sequence at time of this records' creation

hasSameUuid

public boolean hasSameUuid(UUID thatUuid)

Specified by:

hasSameUuid in interface NearCacheRecord<V>

Returns:

true if supplied uuid equals existing one, otherwise and when one of supplied or existing is null returns false

setUuid

public void setUuid(UUID uuid)

Specified by:

setUuid in interface NearCacheRecord<V>

Parameters:

uuid - last known uuid of invalidation source at time of this records' creation

isIdleAt

public boolean isIdleAt(long maxIdleMilliSeconds,
                        long now)

Description copied from interface: NearCacheRecord

Checks whether the maximum idle time is passed with respect to the provided time without any access during this time period as maxIdleSeconds.

Specified by:

isIdleAt in interface NearCacheRecord<V>

Parameters:

maxIdleMilliSeconds - maximum idle time in milliseconds

now - current time in milliseconds

Returns:

true if exceeds max idle seconds, otherwise false

getRecordState

public long getRecordState()

Specified by:

getRecordState in interface NearCacheRecord<V>

Returns:

current state of this record.

casRecordState

public boolean casRecordState(long expect,
                              long update)

Specified by:

casRecordState in interface NearCacheRecord<V>

Parameters:

expect - expected value

update - updated value

Returns:

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

toString

public String toString()

Overrides:

toString in class Object