Module org.elasticsearch.server

Package org.elasticsearch.index.mapper

Class TimeSeriesMetadataFieldBlockLoader

java.lang.Object

org.elasticsearch.index.mapper.TimeSeriesMetadataFieldBlockLoader

All Implemented Interfaces:

BlockLoader

public final class TimeSeriesMetadataFieldBlockLoader
extends Object
implements BlockLoader

Load _timeseries into blocks.

Nested Class Summary

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

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

Field Summary

Fields inherited from interface org.elasticsearch.index.mapper.BlockLoader

CONSTANT_NULLS

Constructor Summary

Constructors

Constructor	Description
TimeSeriesMetadataFieldBlockLoader(MappedFieldType.BlockLoaderContext context)

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	columnAtATimeReader(org.apache.lucene.index.LeafReaderContext context)	Build a column-at-a-time reader.
org.apache.lucene.index.SortedSetDocValues	ordinals(org.apache.lucene.index.LeafReaderContext context)	Load ordinals for the provided context.
BlockLoader.RowStrideReader	rowStrideReader(org.apache.lucene.index.LeafReaderContext context)	Build a row-by-row reader.
StoredFieldsSpec	rowStrideStoredFieldSpec()	What stored fields are needed by this reader.
boolean	supportsOrdinals()	Does this loader support loading bytes via calling BlockLoader.ordinals(org.apache.lucene.index.LeafReaderContext).

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.index.mapper.BlockLoader

convert

Constructor Details

TimeSeriesMetadataFieldBlockLoader

public TimeSeriesMetadataFieldBlockLoader(MappedFieldType.BlockLoaderContext context)

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.

Specified by:

builder in interface BlockLoader

columnAtATimeReader

public BlockLoader.ColumnAtATimeReader columnAtATimeReader(org.apache.lucene.index.LeafReaderContext context)

Description copied from interface: BlockLoader

Build a column-at-a-time reader. May return null if the underlying storage needs to be loaded row-by-row. Callers should try this first, only falling back to BlockLoader.rowStrideReader(org.apache.lucene.index.LeafReaderContext) if this returns null or if they can't load column-at-a-time themselves.

Specified by:

columnAtATimeReader in interface BlockLoader

rowStrideReader

public BlockLoader.RowStrideReader rowStrideReader(org.apache.lucene.index.LeafReaderContext context)
                                            throws IOException

Description copied from interface: BlockLoader

Build a row-by-row reader. Must never return null, evan if the underlying storage prefers to be loaded column-at-a-time. Some callers simply can't load column-at-a-time so all implementations must support this method.

Specified by:

rowStrideReader in interface BlockLoader

Throws:

IOException

rowStrideStoredFieldSpec

public StoredFieldsSpec rowStrideStoredFieldSpec()

Description copied from interface: BlockLoader

What stored fields are needed by this reader.

Specified by:

rowStrideStoredFieldSpec in interface BlockLoader

supportsOrdinals

public boolean supportsOrdinals()

Description copied from interface: BlockLoader

Does this loader support loading bytes via calling BlockLoader.ordinals(org.apache.lucene.index.LeafReaderContext).

Specified by:

supportsOrdinals in interface BlockLoader

ordinals

public org.apache.lucene.index.SortedSetDocValues ordinals(org.apache.lucene.index.LeafReaderContext context)

Description copied from interface: BlockLoader

Load ordinals for the provided context.

Specified by:

ordinals in interface BlockLoader