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#Org.apache.hadoop.mapreduce.lib.aggregate Classes and Interfaces - 17 results found.
| Name | Description | Type | Package | Framework |
| DoubleValueSum | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop | |
| LongValueMax | This class implements a value aggregator that maintain the maximum of a sequence of long values. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| LongValueMin | This class implements a value aggregator that maintain the minimum of a sequence of long values. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| LongValueSum | This class implements a value aggregator that sums up a sequence of long values. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| StringValueMax | This class implements a value aggregator that maintain the biggest of a sequence of strings. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| StringValueMin | This class implements a value aggregator that maintain the smallest of a sequence of strings. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| UniqValueCount | This class implements a value aggregator that dedupes a sequence of objects. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| UserDefinedValueAggregatorDescriptor | This class implements a wrapper for a user defined value aggregator descriptor. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregator | This interface defines the minimal protocol for value aggregators. | Interface | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorBaseDescriptor | This class implements the common functionalities of the subclasses of ValueAggregatorDescriptor class. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorCombiner | This class implements the generic combiner of Aggregate. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorDescriptor | This interface defines the contract a value aggregator descriptor must support. | Interface | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorJob | This is the main class for creating a map/reduce job using Aggregate framework. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorJobBase | This abstract class implements some common functionalities of the the generic mapper, reducer and combiner classes of Aggregate. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorMapper | This class implements the generic mapper of Aggregate. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueAggregatorReducer | This class implements the generic reducer of Aggregate. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |
| ValueHistogram | This class implements a value aggregator that computes the histogram of a sequence of strings. | Class | org.apache.hadoop.mapreduce.lib.aggregate | Apache Hadoop |