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	Description
interface	ValueAggregator<E>	This interface defines the minimal protocol for value aggregators.

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

Modifier and Type	Class	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.

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	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	Description
static ValueAggregator	ValueAggregatorBaseDescriptor.generateValueAggregator(String type, long uniqCount)