org.apache.giraph.aggregators.matrix.sparse

Class IntSparseVectorSumAggregator

java.lang.Object

org.apache.giraph.aggregators.BasicAggregator<IntSparseVector>

org.apache.giraph.aggregators.matrix.sparse.IntSparseVectorSumAggregator

All Implemented Interfaces:

Aggregator<IntSparseVector>

public class IntSparseVectorSumAggregator
extends BasicAggregator<IntSparseVector>

The float vector aggregator is used to aggregate float vectors.

Constructor Summary

Constructors

Constructor and Description
IntSparseVectorSumAggregator()

Method Summary

Modifier and Type	Method and Description
void	aggregate(IntSparseVector vector) Add a new value.
IntSparseVector	createInitialValue() Return new aggregated value which is neutral to aggregate operation.

Methods inherited from class org.apache.giraph.aggregators.BasicAggregator

getAggregatedValue, reset, setAggregatedValue

Methods inherited from class java.lang.Object

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

Constructor Detail

IntSparseVectorSumAggregator

public IntSparseVectorSumAggregator()

Method Detail

createInitialValue

public IntSparseVector createInitialValue()

Description copied from interface: Aggregator

Return new aggregated value which is neutral to aggregate operation. Must be changeable without affecting internals of Aggregator

Returns:

Neutral value

aggregate

public void aggregate(IntSparseVector vector)

Description copied from interface: Aggregator

Add a new value. Needs to be commutative and associative

Parameters:

vector - Value to be aggregated.