org.apache.hadoop.hive.druid.serde

Class DruidTopNQueryRecordReader

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.Result<org.apache.druid.query.topn.TopNResultValue>>

org.apache.hadoop.hive.druid.serde.DruidTopNQueryRecordReader

All Implemented Interfaces:

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

public class DruidTopNQueryRecordReader
extends DruidQueryRecordReader<org.apache.druid.query.Result<org.apache.druid.query.topn.TopNResultValue>>

Record reader for results for Druid TopNQuery.

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
DruidTopNQueryRecordReader()

Method Summary

Modifier and Type	Method and Description
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, createValue, 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

DruidTopNQueryRecordReader

public DruidTopNQueryRecordReader()

Method Detail

getResultTypeDef

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

Specified by:

getResultTypeDef in class DruidQueryRecordReader<org.apache.druid.query.Result<org.apache.druid.query.topn.TopNResultValue>>

nextKeyValue

public boolean nextKeyValue()

Specified by:

nextKeyValue in class DruidQueryRecordReader<org.apache.druid.query.Result<org.apache.druid.query.topn.TopNResultValue>>

getCurrentKey

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

Specified by:

getCurrentKey in class DruidQueryRecordReader<org.apache.druid.query.Result<org.apache.druid.query.topn.TopNResultValue>>

Throws:

IOException

InterruptedException

getCurrentValue

public DruidWritable getCurrentValue()
                              throws IOException,
                                     InterruptedException

Specified by:

getCurrentValue in class DruidQueryRecordReader<org.apache.druid.query.Result<org.apache.druid.query.topn.TopNResultValue>>

Throws:

IOException

InterruptedException

next

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

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.Result<org.apache.druid.query.topn.TopNResultValue>>

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.Result<org.apache.druid.query.topn.TopNResultValue>>