Package com.illumon.iris.db.v2.locations

Interface ParquetFormatColumnLocation<ATTR extends Attributes.Any,TLT extends TableLocation>

All Superinterfaces:

ColumnLocation<TLT>, com.fishlib.base.log.LogOutputAppendable, NamedImplementation, StringUtils.StringKeyedObject

public interface ParquetFormatColumnLocation<ATTR extends Attributes.Any,TLT extends TableLocation>
extends ColumnLocation<TLT>

ColumnLocation sub-interface for column locations stored in the Apache Parquet columnar format.

Method Summary

Modifier and Type	Method	Description
Chunk<ATTR>	getDictionary(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)	Get the Dictionary backing this column location.
ColumnChunkPageStore<Attributes.DictionaryKeys>[]	getDictionaryKeysPageStores(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)	Get the ColumnChunkPageStore backing the indices for this column location.
ColumnChunkPageStore<ATTR>[]	getPageStores(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)	Get the ColumnChunkPageStore backing this column location.

Methods inherited from interface com.illumon.iris.db.v2.locations.ColumnLocation

append, asDeephavenFormat, asParquetFormat, exists, getFormat, getMetadata, getName, getStringRepresentation, getTableLocation, makeColumnRegionByte, makeColumnRegionChar, makeColumnRegionDouble, makeColumnRegionFloat, makeColumnRegionInt, makeColumnRegionLong, makeColumnRegionObject, makeColumnRegionShort, toStringHelper

Methods inherited from interface com.illumon.util.type.NamedImplementation

getImplementationName

Method Details

getPageStores

@NotNull ColumnChunkPageStore<ATTR>[] getPageStores(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)

Get the ColumnChunkPageStore backing this column location.

Returns:

The page store

getDictionary

@Nullable Chunk<ATTR> getDictionary(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)

Get the Dictionary backing this column location.

Returns:

The dictionary, or null if it doesn't exist

getDictionaryKeysPageStores

@Nullable ColumnChunkPageStore<Attributes.DictionaryKeys>[] getDictionaryKeysPageStores(com.illumon.dataobjects.ColumnDefinition<?> columnDefinition)

Get the ColumnChunkPageStore backing the indices for this column location. Only usable when there's a dictionary.

Returns:

The page store