Uses of Interface
org.apache.hadoop.mapreduce.lib.aggregate.ValueAggregator

Packages that use ValueAggregator

Package	Description
org.apache.hadoop.mapred.lib.aggregate
org.apache.hadoop.mapreduce.lib.aggregate

Uses of ValueAggregator in org.apache.hadoop.mapred.lib.aggregate

Subinterfaces of ValueAggregator in org.apache.hadoop.mapred.lib.aggregate

Modifier and Type	Interface and Description
interface	ValueAggregator<E> This interface defines the minimal protocol for value aggregators.

Uses of ValueAggregator in org.apache.hadoop.mapreduce.lib.aggregate

Classes in org.apache.hadoop.mapreduce.lib.aggregate that implement ValueAggregator

Modifier and Type	Class and Description
class	DoubleValueSum This class implements a value aggregator that sums up a sequence of double values.
class	LongValueMax This class implements a value aggregator that maintain the maximum of a sequence of long values.
class	LongValueMin This class implements a value aggregator that maintain the minimum of a sequence of long values.
class	LongValueSum This class implements a value aggregator that sums up a sequence of long values.
class	StringValueMax This class implements a value aggregator that maintain the biggest of a sequence of strings.
class	StringValueMin This class implements a value aggregator that maintain the smallest of a sequence of strings.
class	UniqValueCount This class implements a value aggregator that dedupes a sequence of objects.
class	ValueHistogram This class implements a value aggregator that computes the histogram of a sequence of strings.

Methods in org.apache.hadoop.mapreduce.lib.aggregate that return ValueAggregator

Modifier and Type	Method and Description
static ValueAggregator	ValueAggregatorBaseDescriptor.generateValueAggregator(String type, long uniqCount)