Package io.deephaven.parquet.table.region

Class ParquetColumnRegionChar<ATTR extends Any>

java.lang.Object

io.deephaven.engine.table.impl.sources.regioned.GenericColumnRegionBase<ATTR>

io.deephaven.parquet.table.region.ParquetColumnRegionBase<ATTR>

io.deephaven.parquet.table.region.ParquetColumnRegionChar<ATTR>

All Implemented Interfaces:

Page<ATTR>, PagingChunkSource<ATTR>, ChunkSource<ATTR>, FillContextMaker, GetContextMaker, DefaultChunkSource<ATTR>, PushdownFilterMatcher, ColumnRegion<ATTR>, ColumnRegionChar<ATTR>, RegionedPushdownFilterMatcher, Releasable

public final class ParquetColumnRegionChar<ATTR extends Any>
extends ParquetColumnRegionBase<ATTR>
implements ColumnRegionChar<ATTR>

ColumnRegionChar implementation for regions that support fetching primitive chars from column chunk page stores.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.engine.table.ChunkSource

ChunkSource.FillContext, ChunkSource.GetContext

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegion

ColumnRegion.Null<ATTR extends Any>

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegionChar

ColumnRegionChar.Constant<ATTR extends Any>, ColumnRegionChar.Null<ATTR extends Any>, ColumnRegionChar.StaticPageStore<ATTR extends Any>

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.DefaultChunkSource

DefaultChunkSource.SupportsContiguousGet<ATTR extends Any>, DefaultChunkSource.WithPrev<ATTR extends Any>

Nested classes/interfaces inherited from interface io.deephaven.engine.page.Page

Page.WithDefaults<ATTR extends Any>, Page.WithDefaultsForRepeatingValues<ATTR extends Any>

Field Summary

Fields inherited from interface io.deephaven.engine.table.ChunkSource

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Constructor Summary

Constructors

Constructor	Description
ParquetColumnRegionChar(@NotNull ColumnChunkPageStore<ATTR> columnChunkPageStore, @NotNull ColumnLocation columnLocation)

Method Summary

Modifier and Type	Method	Description
long	estimatePushdownAction(RegionedPushdownAction action, WhereFilter filter, RowSet selection, boolean usePrev, PushdownFilterContext filterContext, RegionedPushdownAction.EstimateContext estimateContext)	Estimate the cost of the given pushdown action.
char	getChar(long rowKey)	Get a single char from this region.
ChunkPage<ATTR>	getChunkPageContaining(long elementIndex)
PushdownResult	performPushdownAction(RegionedPushdownAction action, WhereFilter filter, RowSet selection, PushdownResult input, boolean usePrev, PushdownFilterContext filterContext, RegionedPushdownAction.ActionContext actionContext)	Perform the pushdown action for the given filter and filter context.
List<RegionedPushdownAction>	supportedActions()	Get the list of pushdown actions supported by this matcher.

Methods inherited from class io.deephaven.parquet.table.region.ParquetColumnRegionBase

fillChunk, fillChunkAppend, getChunk, getChunk, getChunkPageContaining, getColumnLocation, releaseCachedResources

Methods inherited from class io.deephaven.engine.table.impl.sources.regioned.GenericColumnRegionBase

invalidate, mask, throwIfInvalidated

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.engine.table.ChunkSource

fillChunk

Methods inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegion

estimatePushdownFilterCost, firstRowOffset, getColumnLocation, invalidate, pushdownFilter

Methods inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegionChar

getChar, getChunkType

Methods inherited from interface io.deephaven.engine.table.impl.DefaultChunkSource

getChunk, getChunk, getChunkByFilling, makeGetContext

Methods inherited from interface io.deephaven.engine.table.FillContextMaker

makeFillContext

Methods inherited from interface io.deephaven.engine.table.GetContextMaker

makeGetContext

Methods inherited from interface io.deephaven.engine.page.Page

advanceToNextPage, advanceToNextPage, advanceToNextPageAndGetPositionDistance, firstRow, getRowOffset

Methods inherited from interface io.deephaven.engine.page.PagingChunkSource

fillChunkAppend, makeFillContext, mask, maxRow

Methods inherited from interface io.deephaven.engine.table.impl.PushdownFilterMatcher

makePushdownFilterContext

Methods inherited from interface io.deephaven.engine.table.impl.sources.regioned.RegionedPushdownFilterMatcher

makeActionContext, makeEstimateContext

Methods inherited from interface io.deephaven.engine.table.Releasable

releaseCachedResources

Constructor Details

ParquetColumnRegionChar

public ParquetColumnRegionChar(@NotNull
 @NotNull ColumnChunkPageStore<ATTR> columnChunkPageStore,
 @NotNull
 @NotNull ColumnLocation columnLocation)

Method Details

getChar

public char getChar(long rowKey)

Description copied from interface: ColumnRegionChar

Get a single char from this region.

Specified by:

getChar in interface ColumnRegionChar<ATTR extends Any>

Parameters:

rowKey - Element row key in the table's address space

Returns:

The char value at the specified element row key

supportedActions

public List<RegionedPushdownAction> supportedActions()

Description copied from interface: RegionedPushdownFilterMatcher

Get the list of pushdown actions supported by this matcher. Defaults to an empty list.

Specified by:

supportedActions in interface RegionedPushdownFilterMatcher

estimatePushdownAction

public long estimatePushdownAction(RegionedPushdownAction action,
 WhereFilter filter,
 RowSet selection,
 boolean usePrev,
 PushdownFilterContext filterContext,
 RegionedPushdownAction.EstimateContext estimateContext)

Description copied from interface: RegionedPushdownFilterMatcher

Estimate the cost of the given pushdown action. Returns Long.MAX_VALUE if the action is not supported by this matcher.

Specified by:

estimatePushdownAction in interface RegionedPushdownFilterMatcher

performPushdownAction

public PushdownResult performPushdownAction(RegionedPushdownAction action,
 WhereFilter filter,
 RowSet selection,
 PushdownResult input,
 boolean usePrev,
 PushdownFilterContext filterContext,
 RegionedPushdownAction.ActionContext actionContext)

Description copied from interface: RegionedPushdownFilterMatcher

Perform the pushdown action for the given filter and filter context.

Specified by:

performPushdownAction in interface RegionedPushdownFilterMatcher

getChunkPageContaining

ChunkPage<ATTR> getChunkPageContaining(long elementIndex)