Module org.elasticsearch.server

Package org.elasticsearch.index.mapper.blockloader.docvalues

Class AbstractDoublesFromDocValuesBlockLoader.Singleton

java.lang.Object

org.elasticsearch.index.mapper.blockloader.docvalues.BlockDocValuesReader

org.elasticsearch.index.mapper.blockloader.docvalues.AbstractDoublesFromDocValuesBlockLoader.Singleton

All Implemented Interfaces:

BlockLoader.AllReader, BlockLoader.ColumnAtATimeReader, BlockDocValuesReader.NumericDocValuesAccessor, BlockLoader.Reader, BlockLoader.RowStrideReader

Enclosing class:

AbstractDoublesFromDocValuesBlockLoader

public static class AbstractDoublesFromDocValuesBlockLoader.Singleton
extends BlockDocValuesReader
implements BlockDocValuesReader.NumericDocValuesAccessor

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.index.mapper.blockloader.docvalues.BlockDocValuesReader

BlockDocValuesReader.DocValuesBlockLoader, BlockDocValuesReader.NumericDocValuesAccessor, BlockDocValuesReader.ToDouble

Constructor Summary

Constructors

Constructor	Description
Singleton(org.apache.lucene.index.NumericDocValues docValues, BlockDocValuesReader.ToDouble toDouble)

Method Summary

Modifier and Type	Method	Description
int	docId()
org.apache.lucene.index.NumericDocValues	numericDocValues()
void	read(int docId, BlockLoader.StoredFields storedFields, BlockLoader.Builder builder)	Reads the values of the given document into the builder.
BlockLoader.Block	read(BlockLoader.BlockFactory factory, BlockLoader.Docs docs, int offset, boolean nullsFiltered)	Reads the values of all documents in docs.
String	toString()

Methods inherited from class org.elasticsearch.index.mapper.blockloader.docvalues.BlockDocValuesReader

canReuse

Methods inherited from class java.lang.Object

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

Constructor Details

Singleton

public Singleton(org.apache.lucene.index.NumericDocValues docValues,
 BlockDocValuesReader.ToDouble toDouble)

Method Details

read

public BlockLoader.Block read(BlockLoader.BlockFactory factory,
 BlockLoader.Docs docs,
 int offset,
 boolean nullsFiltered)
                       throws IOException

Description copied from interface: BlockLoader.ColumnAtATimeReader

Reads the values of all documents in docs.

Specified by:

read in interface BlockLoader.ColumnAtATimeReader

Parameters:

nullsFiltered - if true, then target docs are guaranteed to have a value for the field; otherwise, the guarantee is unknown. This enables optimizations for block loaders, treating the field as dense (every document has value) even if it is sparse in the index. For example, "FROM index | WHERE x != null | STATS sum(x)", after filtering out documents without value for field x, all target documents returned from the source operator will have a value for field x whether x is dense or sparse in the index.

Throws:

IOException

read

public void read(int docId,
 BlockLoader.StoredFields storedFields,
 BlockLoader.Builder builder)
          throws IOException

Description copied from interface: BlockLoader.RowStrideReader

Reads the values of the given document into the builder.

Specified by:

read in interface BlockLoader.RowStrideReader

Throws:

IOException

docId

public int docId()

Specified by:

docId in class BlockDocValuesReader

toString

public String toString()

Specified by:

toString in class BlockDocValuesReader

numericDocValues

public org.apache.lucene.index.NumericDocValues numericDocValues()

Specified by:

numericDocValues in interface BlockDocValuesReader.NumericDocValuesAccessor