org.apache.pig.piggybank.storage.hiverc

Class HiveRCRecordReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

org.apache.pig.piggybank.storage.hiverc.HiveRCRecordReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class HiveRCRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

This class delegates the work to the RCFileRecordReader

Constructor Summary

Constructors

Constructor and Description
HiveRCRecordReader()

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.LongWritable	getCurrentKey()
org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable	getCurrentValue()
float	getProgress()
org.apache.hadoop.fs.Path	getSplitPath()
void	initialize(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext ctx)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveRCRecordReader

public HiveRCRecordReader()

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

getCurrentKey

public org.apache.hadoop.io.LongWritable getCurrentKey()
                                                throws java.io.IOException,
                                                       java.lang.InterruptedException

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

java.lang.InterruptedException

getCurrentValue

public org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable getCurrentValue()
                                                                             throws java.io.IOException,
                                                                                    java.lang.InterruptedException

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

java.lang.InterruptedException

getProgress

public float getProgress()
                  throws java.io.IOException,
                         java.lang.InterruptedException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

java.lang.InterruptedException

getSplitPath

public org.apache.hadoop.fs.Path getSplitPath()

initialize

public void initialize(org.apache.hadoop.mapreduce.InputSplit split,
              org.apache.hadoop.mapreduce.TaskAttemptContext ctx)
                throws java.io.IOException,
                       java.lang.InterruptedException

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

java.lang.InterruptedException

nextKeyValue

public boolean nextKeyValue()
                     throws java.io.IOException,
                            java.lang.InterruptedException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.hive.serde2.columnar.BytesRefArrayWritable>

Throws:

java.io.IOException

java.lang.InterruptedException