Interface | Description |
---|---|
Aggregator<A extends org.apache.hadoop.io.Writable> |
Interface for Aggregator.
|
AggregatorUsage |
Master and workers can access aggregators through this interface.
|
AggregatorWriter |
An AggregatorWriter is used to export Aggregators during or at the end of
each computation.
|
Class | Description |
---|---|
BasicAggregator<A extends org.apache.hadoop.io.Writable> |
Abstract class for
Aggregator . |
BooleanAndAggregator |
Aggregator for calculating the AND function over boolean values.
|
BooleanOrAggregator |
Aggregator for calculating the OR function over boolean values.
|
BooleanOverwriteAggregator |
Aggregator that stores a value that is overwritten once another value is
aggregated.
|
DoubleMaxAggregator |
Aggregator for getting max double value.
|
DoubleMinAggregator |
Aggregator for getting min double value.
|
DoubleOverwriteAggregator |
Aggregator that stores a value that is overwritten once another value is
aggregated.
|
DoubleProductAggregator |
Aggregator for calculating products of double values.
|
DoubleSumAggregator |
Aggregator for summing up double values.
|
FloatMaxAggregator |
Aggregator for getting max float value.
|
FloatMinAggregator |
Aggregator for getting min float value.
|
FloatOverwriteAggregator |
Aggregator that stores a value that is overwritten once another value is
aggregated.
|
FloatProductAggregator |
Aggregator for calculating products of float values.
|
FloatSumAggregator |
Aggregator for summing up float values.
|
IntMaxAggregator |
Aggregator for getting max integer value.
|
IntMinAggregator |
Aggregator for getting min integer value.
|
IntOverwriteAggregator |
Aggregator that stores a value that is overwritten once another value is
aggregated.
|
IntProductAggregator |
Aggregator for calculating products of long and integer values.
|
IntSumAggregator |
Aggregator for summing up integer values.
|
LongMaxAggregator |
Aggregator for getting max long value.
|
LongMinAggregator |
Aggregator for getting min long value.
|
LongOverwriteAggregator |
Aggregator that stores a value that is overwritten once another value is
aggregated.
|
LongProductAggregator |
Aggregator for calculating products of long values.
|
LongSumAggregator |
Aggregator for summing up long values.
|
TextAggregatorWriter |
Default implementation of
AggregatorWriter . |
TextAppendAggregator |
Aggregator with
Text as its value which keeps appending text to it |
Copyright © 2011-2020 The Apache Software Foundation. All Rights Reserved.