K
- The type of the input keys as read by the internal input formatV
- The type of the input values as read by the internal input format
public class JoinMapper<K,V>
extends MapReduceBase
MultipleInputsFileSplitInputFormat
needs to be set as the job's input format in order to read two different data sets.ConfigParams.PARTITIONING_RESULT
.Partitioning
.Constructor and Description |
---|
JoinMapper() |
Modifier and Type | Method and Description |
---|---|
void |
configure(JobConf jobConf) |
void |
map(NullWritable key, InputSplit value, <any> output, Reporter reporter) |
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