com.facebook.presto.hive.util

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

java.lang.Object

com.facebook.presto.hive.util.FooterAwareRecordReader<K,V>

All Implemented Interfaces:

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

public class FooterAwareRecordReader<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>
extends Object
implements org.apache.hadoop.mapred.RecordReader<K,V>

Constructor Summary

Constructors

Constructor and Description
FooterAwareRecordReader(org.apache.hadoop.mapred.RecordReader<K,V> delegate, int footerCount, org.apache.hadoop.mapred.JobConf job)

Method Summary

Modifier and Type	Method and Description
void	close()
K	createKey()
V	createValue()
long	getPos()
float	getProgress()
boolean	next(K key, V value)

Methods inherited from class java.lang.Object

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

Constructor Detail

FooterAwareRecordReader

public FooterAwareRecordReader(org.apache.hadoop.mapred.RecordReader<K,V> delegate,
                               int footerCount,
                               org.apache.hadoop.mapred.JobConf job)
                        throws IOException

Throws:

IOException

Method Detail

next

public boolean next(K key,
                    V value)
             throws IOException

Specified by:

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

Throws:

IOException

createKey

public K createKey()

Specified by:

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

createValue

public V createValue()

Specified by:

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

getPos

public long getPos()
            throws IOException

Specified by:

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

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

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

Throws:

IOException

getProgress

public float getProgress()
                  throws IOException

Specified by:

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

Throws:

IOException