org.apache.hadoop.mapred
Class SequenceFileOutputFormat

java.lang.Object
  org.apache.hadoop.mapred.OutputFormatBase
      org.apache.hadoop.mapred.SequenceFileOutputFormat

All Implemented Interfaces:

OutputFormat

public class SequenceFileOutputFormat
extends OutputFormatBase

An OutputFormat that writes SequenceFiles.

Constructor Summary

SequenceFileOutputFormat()

Method Summary

static SequenceFile.Reader[]	getReaders(Configuration conf, Path dir) Open the output generated by this format.
RecordWriter	getRecordWriter(FileSystem ignored, JobConf job, String name, Progressable progress) Construct a RecordWriter with Progressable.

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

checkOutputSpecs, getCompressOutput, getOutputCompressorClass, setCompressOutput, setOutputCompressorClass

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceFileOutputFormat

public SequenceFileOutputFormat()

Method Detail

getRecordWriter

public RecordWriter getRecordWriter(FileSystem ignored,
                                    JobConf job,
                                    String name,
                                    Progressable progress)
                             throws IOException

Description copied from interface: OutputFormat

Construct a RecordWriter with Progressable.

Specified by:

getRecordWriter in interface OutputFormat

Specified by:

getRecordWriter in class OutputFormatBase

job - 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

Throws:

IOException

getReaders

public static SequenceFile.Reader[] getReaders(Configuration conf,
                                               Path dir)
                                        throws IOException

Open the output generated by this format.

Throws:

IOException