com.hazelcast.cardinality.impl

Class CardinalityEstimatorContainer

java.lang.Object

com.hazelcast.cardinality.impl.CardinalityEstimatorContainer

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class CardinalityEstimatorContainer
extends Object
implements IdentifiedDataSerializable

Constructor Summary

Constructors

Constructor and Description
CardinalityEstimatorContainer()
CardinalityEstimatorContainer(int backupCount, int asyncBackupCount)

Method Summary

Modifier and Type	Method and Description
void	add(long hash)
boolean	equals(Object o)
long	estimate()
int	getAsyncBackupCount()
int	getBackupCount()
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
int	getTotalBackupCount()
int	hashCode()
HyperLogLog	merge(SplitBrainMergeTypes.CardinalityEstimatorMergeTypes mergingEntry, SplitBrainMergePolicy<HyperLogLog,SplitBrainMergeTypes.CardinalityEstimatorMergeTypes> mergePolicy, SerializationService serializationService) Merges the given SplitBrainMergeTypes.CardinalityEstimatorMergeTypes via the given SplitBrainMergePolicy.
void	readData(ObjectDataInput in) Reads fields from the input stream
void	setValue(HyperLogLog hll)
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class java.lang.Object

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

Constructor Detail

CardinalityEstimatorContainer

public CardinalityEstimatorContainer()

CardinalityEstimatorContainer

public CardinalityEstimatorContainer(int backupCount,
                                     int asyncBackupCount)

Method Detail

add

public void add(long hash)

estimate

public long estimate()

getBackupCount

public int getBackupCount()

getAsyncBackupCount

public int getAsyncBackupCount()

getTotalBackupCount

public int getTotalBackupCount()

merge

public HyperLogLog merge(SplitBrainMergeTypes.CardinalityEstimatorMergeTypes mergingEntry,
                         SplitBrainMergePolicy<HyperLogLog,SplitBrainMergeTypes.CardinalityEstimatorMergeTypes> mergePolicy,
                         SerializationService serializationService)

Merges the given SplitBrainMergeTypes.CardinalityEstimatorMergeTypes via the given SplitBrainMergePolicy.

Parameters:

mergingEntry - the SplitBrainMergeTypes.CardinalityEstimatorMergeTypes instance to merge

mergePolicy - the SplitBrainMergePolicy instance to apply

serializationService - the SerializationService to inject dependencies

Returns:

the used HyperLogLog if merge is applied, otherwise null

setValue

public void setValue(HyperLogLog hll)

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

Parameters:

out - output

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

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

Parameters:

in - input

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the input stream has been closed.

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory ID for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory ID

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

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

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type ID

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object