| 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 |
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