org.apache.phoenix.hive.mapreduce

Class PhoenixRecordReader<T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

java.lang.Object

org.apache.phoenix.hive.mapreduce.PhoenixRecordReader<T>

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T>

public class PhoenixRecordReader<T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>
extends java.lang.Object
implements org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T>

RecordReader implementation that iterates over the the records.

Constructor Summary

Constructors

Constructor and Description
PhoenixRecordReader(java.lang.Class<T> inputClass, org.apache.hadoop.conf.Configuration configuration, org.apache.phoenix.compile.QueryPlan queryPlan)

Method Summary

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.WritableComparable	createKey()
T	createValue()
long	getPos()
float	getProgress()
void	initialize(org.apache.hadoop.mapred.InputSplit split)
boolean	next(org.apache.hadoop.io.WritableComparable key, T value)

Methods inherited from class java.lang.Object

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

Constructor Detail

PhoenixRecordReader

public PhoenixRecordReader(java.lang.Class<T> inputClass,
                           org.apache.hadoop.conf.Configuration configuration,
                           org.apache.phoenix.compile.QueryPlan queryPlan)
                    throws java.io.IOException

Throws:

java.io.IOException

Method Detail

initialize

public void initialize(org.apache.hadoop.mapred.InputSplit split)
                throws java.io.IOException

Throws:

java.io.IOException

next

public boolean next(org.apache.hadoop.io.WritableComparable key,
                    T value)
             throws java.io.IOException

Specified by:

next in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

Throws:

java.io.IOException

createKey

public org.apache.hadoop.io.WritableComparable createKey()

Specified by:

createKey in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

createValue

public T createValue()

Specified by:

createValue in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

getPos

public long getPos()
            throws java.io.IOException

Specified by:

getPos in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

Throws:

java.io.IOException

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 interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

Throws:

java.io.IOException

getProgress

public float getProgress()
                  throws java.io.IOException

Specified by:

getProgress in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.WritableComparable,T extends org.apache.hadoop.mapreduce.lib.db.DBWritable>

Throws:

java.io.IOException