org.apache.hadoop.hive.druid.serde

Class DruidScanQueryRecordReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>

org.apache.hadoop.hive.druid.serde.DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

org.apache.hadoop.hive.druid.serde.DruidScanQueryRecordReader

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>

public class DruidScanQueryRecordReader
extends DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

Record reader for results for Druid ScanQuery.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.druid.serde.DruidQueryRecordReader

DruidQueryRecordReader.JsonParserIterator<R extends Comparable<R>>

Field Summary

Fields inherited from class org.apache.hadoop.hive.druid.serde.DruidQueryRecordReader

query

Constructor Summary

Constructors

Constructor and Description
DruidScanQueryRecordReader()

Method Summary

Modifier and Type	Method and Description
DruidWritable	createValue()
org.apache.hadoop.io.NullWritable	getCurrentKey()
DruidWritable	getCurrentValue()
float	getProgress()
protected com.fasterxml.jackson.databind.JavaType	getResultTypeDef()
boolean	next(org.apache.hadoop.io.NullWritable key, DruidWritable value)
boolean	nextKeyValue()

Methods inherited from class org.apache.hadoop.hive.druid.serde.DruidQueryRecordReader

close, createKey, createQueryResultsIterator, getPos, getQueryResultsIterator, initialize, initialize, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

DruidScanQueryRecordReader

public DruidScanQueryRecordReader()

Method Detail

getResultTypeDef

protected com.fasterxml.jackson.databind.JavaType getResultTypeDef()

Specified by:

getResultTypeDef in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

nextKeyValue

public boolean nextKeyValue()
                     throws IOException

Specified by:

nextKeyValue in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

Throws:

IOException

getCurrentKey

public org.apache.hadoop.io.NullWritable getCurrentKey()
                                                throws IOException,
                                                       InterruptedException

Specified by:

getCurrentKey in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

Throws:

IOException

InterruptedException

createValue

public DruidWritable createValue()

Specified by:

createValue in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>

Overrides:

createValue in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

getCurrentValue

public DruidWritable getCurrentValue()
                              throws IOException,
                                     InterruptedException

Specified by:

getCurrentValue in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

Throws:

IOException

InterruptedException

next

public boolean next(org.apache.hadoop.io.NullWritable key,
                    DruidWritable value)
             throws IOException

Specified by:

next in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>

Specified by:

next in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>

Throws:

IOException

getProgress

public float getProgress()

Specified by:

getProgress in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.NullWritable,DruidWritable>

Specified by:

getProgress in class DruidQueryRecordReader<org.apache.druid.query.scan.ScanResultValue>