org.apache.hadoop.hive.ql.io

Class HiveBinaryOutputFormat<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

java.lang.Object

org.apache.hadoop.mapred.FileOutputFormat<K,V>

org.apache.hadoop.mapred.TextOutputFormat<K,V>

org.apache.hadoop.hive.ql.io.HiveBinaryOutputFormat<K,V>

All Implemented Interfaces:

HiveOutputFormat<K,V>, org.apache.hadoop.mapred.OutputFormat<K,V>

public class HiveBinaryOutputFormat<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>
extends org.apache.hadoop.mapred.TextOutputFormat<K,V>
implements HiveOutputFormat<K,V>

HiveBinaryOutputFormat writes out the values consecutively without any separators. It can be used to create a binary data file.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapred.TextOutputFormat

org.apache.hadoop.mapred.TextOutputFormat.LineRecordWriter<K,V>

Nested classes/interfaces inherited from class org.apache.hadoop.mapred.FileOutputFormat

org.apache.hadoop.mapred.FileOutputFormat.Counter

Constructor Summary

Constructors

Constructor and Description
HiveBinaryOutputFormat()

Method Summary

Methods

Modifier and Type	Method and Description
FileSinkOperator.RecordWriter	getHiveRecordWriter(org.apache.hadoop.mapred.JobConf jc, org.apache.hadoop.fs.Path outPath, Class<? extends org.apache.hadoop.io.Writable> valueClass, boolean isCompressed, Properties tableProperties, org.apache.hadoop.util.Progressable progress) create the final out file, and output row by row.

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

getRecordWriter

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.mapred.OutputFormat

checkOutputSpecs, getRecordWriter

Constructor Detail

HiveBinaryOutputFormat

public HiveBinaryOutputFormat()

Method Detail

getHiveRecordWriter

public FileSinkOperator.RecordWriter getHiveRecordWriter(org.apache.hadoop.mapred.JobConf jc,
                                                org.apache.hadoop.fs.Path outPath,
                                                Class<? extends org.apache.hadoop.io.Writable> valueClass,
                                                boolean isCompressed,
                                                Properties tableProperties,
                                                org.apache.hadoop.util.Progressable progress)
                                                  throws IOException

create the final out file, and output row by row. After one row is appended, a configured row separator is appended

Specified by:

getHiveRecordWriter in interface HiveOutputFormat<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

Parameters:

jc - the job configuration file

outPath - the final output file to be created

valueClass - the value class used for create

isCompressed - ignored. Currently we don't support compression.

tableProperties - the tableProperties of this file's corresponding table

progress - progress used for status report

Returns:

the RecordWriter

Throws:

IOException