com.hazelcast.hibernate.serialization

Class Value

java.lang.Object

com.hazelcast.hibernate.serialization.Expirable

com.hazelcast.hibernate.serialization.Value

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class Value
extends Expirable

A value within a region cache

Field Summary

Fields inherited from class com.hazelcast.hibernate.serialization.Expirable

version

Constructor Summary

Constructors

Constructor and Description
Value()
Value(Object version, long timestamp, Object value)

Method Summary

Methods

Modifier and Type	Method and Description
int	getFactoryId() Returns DataSerializableFactory factory id for this class.
int	getId() Returns type identifier for this class.
long	getTimestamp()
Object	getValue()
Object	getValue(long txTimestamp)
boolean	isReplaceableBy(long txTimestamp, Object newVersion, Comparator versionComparator) Determine if the current entry can be overridden with a value corresponding to the given new version and the transaction timestamp.
ExpiryMarker	markForExpiration(long timeout, String nextMarkerId) Mark the entry for expiration with the given timeout and marker id.
boolean	matches(ExpiryMarker lock)
void	readData(ObjectDataInput in) Reads fields from the input stream
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class com.hazelcast.hibernate.serialization.Expirable

getVersion

Methods inherited from class java.lang.Object

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

Constructor Detail

Value

public Value()

Value

public Value(Object version,
     long timestamp,
     Object value)

Method Detail

isReplaceableBy

public boolean isReplaceableBy(long txTimestamp,
                      Object newVersion,
                      Comparator versionComparator)

Description copied from class: Expirable

Determine if the current entry can be overridden with a value corresponding to the given new version and the transaction timestamp.

Specified by:

isReplaceableBy in class Expirable

Parameters:

txTimestamp - the timestamp of the transaction

newVersion - the new version for the replacement value

versionComparator - the comparator to use for the version

Returns:

true if the value can be replaced, false otherwise

getTimestamp

public long getTimestamp()

getValue

public Object getValue()

Specified by:

getValue in class Expirable

Returns:

the value contained, or null if none exists

getValue

public Object getValue(long txTimestamp)

Specified by:

getValue in class Expirable

Parameters:

txTimestamp - the timestamp of the transaction

Returns:

the value contained if it was created before the transaction timestamp or null

matches

public boolean matches(ExpiryMarker lock)

Specified by:

matches in class Expirable

Returns:

true if the Expirable matches using the specified lock, false otherwise

See Also:

ExpiryMarker.expire(long)

markForExpiration

public ExpiryMarker markForExpiration(long timeout,
                             String nextMarkerId)

Description copied from class: Expirable

Mark the entry for expiration with the given timeout and marker id.

For every invocation a corresponding call to ExpiryMarker.expire(long) should be made, provided that the returned marker matches

Specified by:

markForExpiration in class Expirable

Parameters:

timeout - the timestamp in which the lock times out

nextMarkerId - the next lock id to use if creating a new lock

Returns:

the newly created marker, or the current marker with a higher multiplicity

See Also:

ExpiryMarker.expire(long)

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Specified by:

readData in interface DataSerializable

Overrides:

readData in class Expirable

Parameters:

in - input

Throws:

IOException

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Specified by:

writeData in interface DataSerializable

Overrides:

writeData in class Expirable

Parameters:

out - output

Throws:

IOException

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory id for this class.

Returns:

factory id

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. Id should be unique per DataSerializableFactory.

Returns:

type id