cascading.flow.hadoop
Class FlowReducer
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
cascading.flow.hadoop.FlowReducer
- All Implemented Interfaces:
- Closeable, JobConfigurable, Reducer
public class FlowReducer
- extends MapReduceBase
- implements Reducer
Class FlowReducer is the Hadoop Reducer implementation.
Constructor Summary |
FlowReducer()
Constructor FlowReducer creates a new FlowReducer instance. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FlowReducer
public FlowReducer()
- Constructor FlowReducer creates a new FlowReducer instance.
configure
public void configure(JobConf jobConf)
- Specified by:
configure
in interface JobConfigurable
- Overrides:
configure
in class MapReduceBase
reduce
public void reduce(Object key,
Iterator values,
OutputCollector output,
Reporter reporter)
throws IOException
- Specified by:
reduce
in interface Reducer
- Throws:
IOException
close
public void close()
throws IOException
- Specified by:
close
in interface Closeable
- Overrides:
close
in class MapReduceBase
- Throws:
IOException
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