com.hazelcast.mapreduce.aggregation.impl

Class AvgTuple<F,S>

java.lang.Object

com.hazelcast.mapreduce.aggregation.impl.AvgTuple<F,S>

Type Parameters:

F - first value type

S - second value type

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class AvgTuple<F,S>
extends Object
implements IdentifiedDataSerializable

Internal tuple type for average calculations, used to transmit data between Combiner and Reducer implementations.

Constructor Summary

Constructors

Constructor and Description
AvgTuple(F first, S second)

Method Summary

Modifier and Type	Method and Description
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
F	getFirst()
int	getId() Returns type identifier for this class.
S	getSecond()
void	readData(ObjectDataInput in) Reads fields from the input stream
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class java.lang.Object

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

Constructor Detail

AvgTuple

public AvgTuple(F first,
                S second)

Method Detail

getFirst

public F getFirst()

getSecond

public S getSecond()

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

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.