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java.lang.Objectorg.apache.hadoop.mapred.MapReduceBase
@Deprecated public class MapReduceBase
Base class for Mapper
and Reducer
implementations.
Provides default no-op implementations for a few methods, most non-trivial applications need to override some of them.
Constructor Summary | |
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MapReduceBase()
Deprecated. |
Method Summary | |
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void |
close()
Deprecated. Default implementation that does nothing. |
void |
configure(JobConf job)
Deprecated. Default implementation that does nothing. |
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 MapReduceBase()
Method Detail |
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public void close() throws IOException
close
in interface Closeable
IOException
public void configure(JobConf job)
configure
in interface JobConfigurable
job
- the configuration
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