org.apache.hadoop.contrib.index.mapred

Class IndexUpdateOutputFormat

java.lang.Object

org.apache.hadoop.mapred.FileOutputFormat<Shard,org.apache.hadoop.io.Text>

org.apache.hadoop.contrib.index.mapred.IndexUpdateOutputFormat

All Implemented Interfaces:

OutputFormat<Shard,org.apache.hadoop.io.Text>

public class IndexUpdateOutputFormat
extends FileOutputFormat<Shard,org.apache.hadoop.io.Text>

The record writer of this output format simply puts a message in an output path when a shard update is done.

Constructor Summary

Constructors

Constructor and Description
IndexUpdateOutputFormat()

Method Summary

Methods

Modifier and Type	Method and Description
RecordWriter<Shard,org.apache.hadoop.io.Text>	getRecordWriter(org.apache.hadoop.fs.FileSystem fs, JobConf job, java.lang.String name, org.apache.hadoop.util.Progressable progress) Get the RecordWriter for the given job.

Methods inherited from class org.apache.hadoop.mapred.FileOutputFormat

checkOutputSpecs, getCompressOutput, getOutputCompressorClass, getOutputPath, getPathForCustomFile, getTaskOutputPath, getUniqueName, getWorkOutputPath, setCompressOutput, setOutputCompressorClass, setOutputPath

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IndexUpdateOutputFormat

public IndexUpdateOutputFormat()

Method Detail

getRecordWriter

public RecordWriter<Shard,org.apache.hadoop.io.Text> getRecordWriter(org.apache.hadoop.fs.FileSystem fs,
                                                            JobConf job,
                                                            java.lang.String name,
                                                            org.apache.hadoop.util.Progressable progress)
                                                              throws java.io.IOException

Description copied from interface: OutputFormat

Get the RecordWriter for the given job.

Specified by:

getRecordWriter in interface OutputFormat<Shard,org.apache.hadoop.io.Text>

Specified by:

getRecordWriter in class FileOutputFormat<Shard,org.apache.hadoop.io.Text>

job - configuration for the job whose output is being written.

name - the unique name for this part of the output.

progress - mechanism for reporting progress while writing to file.

Returns:

a RecordWriter to write the output for the job.

Throws:

java.io.IOException