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java.lang.Objectorg.apache.hadoop.mapred.MapRunner<K1,V1,K2,V2>
org.apache.hadoop.streaming.PipeMapRunner<K1,V1,K2,V2>
public class PipeMapRunner<K1,V1,K2,V2>
Constructor Summary | |
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PipeMapRunner()
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Method Summary | |
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void |
run(RecordReader<K1,V1> input,
OutputCollector<K2,V2> output,
Reporter reporter)
Start mapping input <key, value> pairs. |
Methods inherited from class org.apache.hadoop.mapred.MapRunner |
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configure, getMapper |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PipeMapRunner()
Method Detail |
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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
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