org.apache.pig.backend.hadoop.executionengine.mapreduceExec
Class PigCombine
java.lang.Object
org.apache.pig.backend.hadoop.executionengine.mapreduceExec.PigCombine
- All Implemented Interfaces:
- Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>
public class PigCombine
- extends Object
- implements org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>
Method Summary |
void |
close()
Nothing happens here. |
void |
configure(org.apache.hadoop.mapred.JobConf job)
Just save off the PigJobConf for later use. |
void |
reduce(Tuple key,
Iterator<IndexedTuple> values,
org.apache.hadoop.mapred.OutputCollector<Tuple,IndexedTuple> output,
org.apache.hadoop.mapred.Reporter reporter)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PigCombine
public PigCombine()
reduce
public void reduce(Tuple key,
Iterator<IndexedTuple> values,
org.apache.hadoop.mapred.OutputCollector<Tuple,IndexedTuple> output,
org.apache.hadoop.mapred.Reporter reporter)
throws IOException
- Specified by:
reduce
in interface org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>
- Throws:
IOException
configure
public void configure(org.apache.hadoop.mapred.JobConf job)
- Just save off the PigJobConf for later use.
- Specified by:
configure
in interface org.apache.hadoop.mapred.JobConfigurable
close
public void close()
throws IOException
- Nothing happens here.
- Specified by:
close
in interface Closeable
- Throws:
IOException
Copyright © ${year} The Apache Software Foundation