- Type Parameters:
INPUT_KEY
- The key format of the input to the map taskINPUT_VALUE
- The value format of the input to the map taskMAP_OUTPUT_KEY
- The key format of the output of the map task (and therefore the input of the reduce)MAP_OUTPUT_VALUE
- The value format of the output of the map task (and therefore the input of the reduce)OUTPUT_KEY
- The key format of the output of the reduce taskOUTPUT_VALUE
- The valueformat of the output of the reduce task
- Direct Known Subclasses:
- SimpleSequenceFileStage
public abstract class SequenceFileStage<INPUT_KEY,INPUT_VALUE,MAP_OUTPUT_KEY,MAP_OUTPUT_VALUE,OUTPUT_KEY,OUTPUT_VALUE>
extends Stage<org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat<INPUT_KEY,INPUT_VALUE>,org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat<OUTPUT_KEY,OUTPUT_VALUE>,INPUT_KEY,INPUT_VALUE,MAP_OUTPUT_KEY,MAP_OUTPUT_VALUE,OUTPUT_KEY,OUTPUT_VALUE>
A helper class for a common stage type. In this case, a stage that goes from a sequence file to a sequence file with types
- Author:
- Sina Samangooei (ss@ecs.soton.ac.uk)