@InterfaceAudience.Public @InterfaceStability.Stable public class InverseMapper<K,V> extends MapReduceBase implements Mapper<K,V,V,K>
Mapper
that swaps keys and values.Constructor and Description |
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InverseMapper() |
Modifier and Type | Method and Description |
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void |
map(K key,
V value,
OutputCollector<V,K> output,
Reporter reporter)
The inverse function.
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close, configure
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
configure
public void map(K key, V value, OutputCollector<V,K> output, Reporter reporter) throws IOException
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