| Package | Description | 
|---|---|
| org.apache.hadoop.mapred.lib.aggregate | |
| org.apache.hadoop.mapreduce.lib.aggregate | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | ValueAggregatorDescriptorThis interface defines the contract a value aggregator descriptor must
 support. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | UserDefinedValueAggregatorDescriptorThis class implements a wrapper for a user defined value 
 aggregator descriptor. | 
| class  | ValueAggregatorBaseDescriptorThis class implements the common functionalities of 
 the subclasses of ValueAggregatorDescriptor class. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected ValueAggregatorDescriptor | UserDefinedValueAggregatorDescriptor. theAggregatorDescriptor | 
| Modifier and Type | Field and Description | 
|---|---|
| protected static ArrayList<ValueAggregatorDescriptor> | ValueAggregatorJobBase. aggregatorDescriptorList | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static ValueAggregatorDescriptor | ValueAggregatorJobBase. getValueAggregatorDescriptor(String spec,
                            Configuration conf) | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static ArrayList<ValueAggregatorDescriptor> | ValueAggregatorJobBase. getAggregatorDescriptors(Configuration conf) | 
Copyright © 2023 Apache Software Foundation. All rights reserved.