org.apache.hadoop.hive.ql.io

Class HiveIgnoreKeyTextOutputFormat<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.HiveIgnoreKeyTextOutputFormat<K,V>

All Implemented Interfaces:

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

Direct Known Subclasses:

Base64TextOutputFormat

public class HiveIgnoreKeyTextOutputFormat<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>

HiveIgnoreKeyTextOutputFormat replaces key with null before feeding the to TextOutputFormat.RecordWriter.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	HiveIgnoreKeyTextOutputFormat.IgnoreKeyWriter<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

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
HiveIgnoreKeyTextOutputFormat()

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.
org.apache.hadoop.mapred.RecordWriter<K,V>	getRecordWriter(org.apache.hadoop.fs.FileSystem ignored, org.apache.hadoop.mapred.JobConf job, String name, org.apache.hadoop.util.Progressable progress)

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

Constructor Detail

HiveIgnoreKeyTextOutputFormat

public HiveIgnoreKeyTextOutputFormat()

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 - whether the content is compressed or not

tableProperties - the tableProperties of this file's corresponding table

progress - progress used for status report

Returns:

the RecordWriter

Throws:

IOException

getRecordWriter

public org.apache.hadoop.mapred.RecordWriter<K,V> getRecordWriter(org.apache.hadoop.fs.FileSystem ignored,
                                                         org.apache.hadoop.mapred.JobConf job,
                                                         String name,
                                                         org.apache.hadoop.util.Progressable progress)
                                                                                                                                                 throws IOException

Specified by:

getRecordWriter in interface org.apache.hadoop.mapred.OutputFormat<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

Overrides:

getRecordWriter in class org.apache.hadoop.mapred.TextOutputFormat<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

Throws:

IOException