Module org.elasticsearch.server

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

Class GeoBytesRefFromLongsBlockLoader

java.lang.Object

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

org.elasticsearch.index.mapper.blockloader.docvalues.GeoBytesRefFromLongsBlockLoader

All Implemented Interfaces:

BlockLoader

public final class GeoBytesRefFromLongsBlockLoader
extends BlockDocValuesReader.DocValuesBlockLoader

This is a GeoPoint-specific block loader that helps deal with an edge case where doc_values are available, yet FieldExtractPreference = NONE. When this happens, the BlockLoader sanity checker (see PlannerUtils.toElementType) expects a BytesRef. This implies that we need to load the value from _source. This however is very slow, especially when synthetic source is enabled. We're better off reading from doc_values and converting to BytesRef to satisfy the checker. This is what this block loader is for.

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.index.mapper.BlockLoader

BlockLoader.AggregateMetricDoubleBuilder, BlockLoader.Block, BlockLoader.BlockFactory, BlockLoader.BooleanBuilder, BlockLoader.Builder, BlockLoader.BytesRefBuilder, BlockLoader.ColumnAtATimeReader, BlockLoader.ConditionalBlockLoader, BlockLoader.Docs, BlockLoader.DoubleBuilder, BlockLoader.ExponentialHistogramBuilder, BlockLoader.FloatBuilder, BlockLoader.IntBuilder, BlockLoader.LongBuilder, BlockLoader.LongRangeBuilder, BlockLoader.OptionalColumnAtATimeReader, BlockLoader.OptionalLengthReader, BlockLoader.Reader, BlockLoader.RowStrideReader, BlockLoader.SingletonBytesRefBuilder, BlockLoader.SingletonDoubleBuilder, BlockLoader.SingletonIntBuilder, BlockLoader.SingletonLongBuilder, BlockLoader.SingletonOrdinalsBuilder, BlockLoader.SortedSetOrdinalsBuilder, BlockLoader.StoredFields, BlockLoader.TDigestBuilder

Constructor Summary

Constructors

Constructor	Description
GeoBytesRefFromLongsBlockLoader(String fieldName)

Method Summary

Modifier and Type	Method	Description
BlockLoader.Builder	builder(BlockLoader.BlockFactory factory, int expectedCount)	The BlockLoader.Builder for data of this type.
BlockLoader.ColumnAtATimeReader	reader(CircuitBreaker breaker, org.apache.lucene.index.LeafReaderContext context)

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

columnAtATimeReader, ordinals, rowStrideReader, rowStrideStoredFieldSpec, supportsOrdinals

Methods inherited from class java.lang.Object

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

Constructor Details

GeoBytesRefFromLongsBlockLoader

public GeoBytesRefFromLongsBlockLoader(String fieldName)

Method Details

builder

public BlockLoader.Builder builder(BlockLoader.BlockFactory factory,
 int expectedCount)

Description copied from interface: BlockLoader

The BlockLoader.Builder for data of this type. Called when loading from a multi-segment or unsorted block.

reader

public BlockLoader.ColumnAtATimeReader reader(CircuitBreaker breaker,
 org.apache.lucene.index.LeafReaderContext context)
                                       throws IOException

Specified by:

reader in class BlockDocValuesReader.DocValuesBlockLoader

Throws:

IOException