@InterfaceAudience.Public @InterfaceStability.Stable public class ValueAggregatorBaseDescriptor extends ValueAggregatorBaseDescriptor implements ValueAggregatorDescriptor
| Modifier and Type | Field and Description | 
|---|---|
| static String | DOUBLE_VALUE_SUM | 
| static String | LONG_VALUE_MAX | 
| static String | LONG_VALUE_MIN | 
| static String | LONG_VALUE_SUM | 
| static String | STRING_VALUE_MAX | 
| static String | STRING_VALUE_MIN | 
| static String | UNIQ_VALUE_COUNT | 
| static String | VALUE_HISTOGRAM | 
inputFileONE, TYPE_SEPARATOR| Constructor and Description | 
|---|
| ValueAggregatorBaseDescriptor() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | configure(JobConf job)get the input file name. | 
| static Map.Entry<Text,Text> | generateEntry(String type,
             String id,
             Text val) | 
| static ValueAggregator | generateValueAggregator(String type) | 
configure, generateKeyValPairs, generateValueAggregatorclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitconfigure, generateKeyValPairspublic static final String UNIQ_VALUE_COUNT
public static final String LONG_VALUE_SUM
public static final String DOUBLE_VALUE_SUM
public static final String VALUE_HISTOGRAM
public static final String LONG_VALUE_MAX
public static final String LONG_VALUE_MIN
public static final String STRING_VALUE_MAX
public static final String STRING_VALUE_MIN
public static Map.Entry<Text,Text> generateEntry(String type, String id, Text val)
type - the aggregation typeid - the aggregation idval - the val associated with the id to be aggregatedpublic static ValueAggregator generateValueAggregator(String type)
type - the aggregation typepublic void configure(JobConf job)
job - a job configuration objectCopyright © 2023 Apache Software Foundation. All rights reserved.