public class PipeMapRunner<K1,V1,K2,V2> extends MapRunner<K1,V1,K2,V2>
Constructor and Description |
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PipeMapRunner() |
Modifier and Type | Method and Description |
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void |
run(RecordReader<K1,V1> input,
OutputCollector<K2,V2> output,
Reporter reporter)
Start mapping input <key, value> pairs.
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public void run(RecordReader<K1,V1> input, OutputCollector<K2,V2> output, Reporter reporter) throws java.io.IOException
MapRunnable
Mapping of input records to output records is complete when this method returns.
run
in interface MapRunnable<K1,V1,K2,V2>
run
in class MapRunner<K1,V1,K2,V2>
input
- the RecordReader
to read the input records.output
- the OutputCollector
to collect the outputrecords.reporter
- Reporter
to report progress, status-updates etc.java.io.IOException
Copyright © 2009 The Apache Software Foundation