public static class DistinctCombiner.Combine extends org.apache.hadoop.mapreduce.Reducer<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>
| Constructor and Description |
|---|
Combine() |
| Modifier and Type | Method and Description |
|---|---|
protected void |
reduce(PigNullableWritable key,
Iterable<NullableTuple> tupIter,
org.apache.hadoop.mapreduce.Reducer.Context context)
The reduce function which removes values.
|
protected void |
setup(org.apache.hadoop.mapreduce.Reducer.Context context) |
static void |
staticDataCleanup() |
public static void staticDataCleanup()
protected void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
setup in class org.apache.hadoop.mapreduce.Reducer<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>IOExceptionInterruptedExceptionprotected void reduce(PigNullableWritable key, Iterable<NullableTuple> tupIter, org.apache.hadoop.mapreduce.Reducer.Context context) throws IOException, InterruptedException
reduce in class org.apache.hadoop.mapreduce.Reducer<PigNullableWritable,NullableTuple,PigNullableWritable,org.apache.hadoop.io.Writable>IOExceptionInterruptedExceptionCopyright © 2007-2017 The Apache Software Foundation