Package io.deephaven.engine.table.impl.sources

Class UnboxedTimeBackedColumnSource<TIME_TYPE>

java.lang.Object

io.deephaven.engine.table.impl.AbstractColumnSource<Long>

io.deephaven.engine.table.impl.sources.UnboxedTimeBackedColumnSource<TIME_TYPE>

All Implemented Interfaces:

ChunkSource<Values>, ChunkSource.WithPrev<Values>, ColumnSource<Long>, ElementSource<Long>, FillContextMaker, GetContextMaker, ColumnSourceGetDefaults.ForLong, ColumnSourceGetDefaults.LongBacked<Long>, DefaultChunkSource<Values>, DefaultChunkSource.WithPrev<Values>, MutableColumnSource<Long>, MutableColumnSourceGetDefaults.ForLong, MutableColumnSourceGetDefaults.LongBacked<Long>, Releasable, TupleExporter<Long>, TupleSource<Long>

Direct Known Subclasses:

InstantAsLongColumnSource, ZonedDateTimeAsLongSource

public abstract class UnboxedTimeBackedColumnSource<TIME_TYPE>
extends AbstractColumnSource<Long>
implements MutableColumnSourceGetDefaults.ForLong

Reinterpret result ColumnSource implementations that translates various Time sources to long values.

Nested Class Summary

Nested classes/interfaces inherited from class io.deephaven.engine.table.impl.AbstractColumnSource

AbstractColumnSource.DefaultedImmutable<DATA_TYPE>, AbstractColumnSource.DefaultedMutable<DATA_TYPE>

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

ChunkSource.FillContext, ChunkSource.GetContext, ChunkSource.WithPrev<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.table.TupleExporter

TupleExporter.ExportElementFunction<TUPLE_TYPE>

Field Summary

Fields inherited from class io.deephaven.engine.table.impl.AbstractColumnSource

componentType, type, updateGraph, USE_RANGES_AVERAGE_RUN_LENGTH

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

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

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

ZERO_LENGTH_CHUNK_SOURCE_WITH_PREV_ARRAY

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

ZERO_LENGTH_COLUMN_SOURCE_ARRAY

Constructor Summary

Constructors

Constructor	Description
UnboxedTimeBackedColumnSource(ColumnSource<TIME_TYPE> alternateColumnSource)

Method Summary

Modifier and Type	Method	Description
<ALTERNATE_DATA_TYPE> boolean	allowsReinterpret(@NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)	Test if a reinterpret call will succeed.
<ALTERNATE_DATA_TYPE> ColumnSource<ALTERNATE_DATA_TYPE>	doReinterpret(@NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)	Supply allowed reinterpret results.
void	fillChunk(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super Values> destination, @NotNull RowSequence rowSequence)	Populates the given destination chunk with data corresponding to the keys from the given RowSequence.
void	fillPrevChunk(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super Values> destination, @NotNull RowSequence rowSequence)	Populates the given destination chunk with data corresponding to the keys from the given RowSequence.
long	getLong(long rowKey)	Get the value at the rowKey as a long.
long	getPrevLong(long rowKey)	Get the previous value at the rowKey as a long.
boolean	isImmutable()	Determine if this column source is immutable, meaning that the values at a given row key never change.
ChunkSource.FillContext	makeFillContext(int chunkCapacity, SharedContext sharedContext)	Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.
protected abstract long	toEpochNano(TIME_TYPE val)

Methods inherited from class io.deephaven.engine.table.impl.AbstractColumnSource

defaultFillChunk, defaultFillPrevChunk, getComponentType, getPrevSource, getType, match, reinterpret

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.ColumnSource

cast, cast, createPreviousTuple, createTuple, createTupleFromValues, exportAllTo, exportElement, exportElement, getChunkType, getComponentType, getPrevSource, getType, isStateless, match, reinterpret, releaseCachedResources, startTrackingPrevValues, tupleLength

Methods inherited from interface io.deephaven.engine.table.impl.ColumnSourceGetDefaults.ForLong

get

Methods inherited from interface io.deephaven.engine.table.impl.ColumnSourceGetDefaults.LongBacked

getBoolean, getByte, getChar, getDouble, getFloat, getInt, getShort

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

getChunk, getChunk, getChunkByFilling, makeGetContext

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

getPrevChunk, getPrevChunk, getPrevChunkByFilling

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.table.impl.MutableColumnSourceGetDefaults.ForLong

getPrev

Methods inherited from interface io.deephaven.engine.table.impl.MutableColumnSourceGetDefaults.LongBacked

getPrevBoolean, getPrevByte, getPrevChar, getPrevDouble, getPrevFloat, getPrevInt, getPrevShort

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

exportAllReinterpretedTo, exportAllReinterpretedTo, exportAllTo, exportElementReinterpreted

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

createTupleFromReinterpretedValues

Constructor Details

UnboxedTimeBackedColumnSource

public UnboxedTimeBackedColumnSource(ColumnSource<TIME_TYPE> alternateColumnSource)

Method Details

toEpochNano

protected abstract long toEpochNano(TIME_TYPE val)

getLong

public long getLong(long rowKey)

Description copied from interface: ElementSource

Get the value at the rowKey as a long. RowKeys that are not present are undefined.

Specified by:

getLong in interface ElementSource<TIME_TYPE>

Parameters:

rowKey - the location in key space to get the value from.

Returns:

the long at the rowKey, null values are represented by QueryConstants.NULL_LONG

getPrevLong

public long getPrevLong(long rowKey)

Description copied from interface: ElementSource

Get the previous value at the rowKey as a long. See ElementSource.getPrev(long) for more details.

Specified by:

getPrevLong in interface ElementSource<TIME_TYPE>

Parameters:

rowKey - the location in key space to get the previous value from.

Returns:

the previous long at the rowKey, null values are represented by QueryConstants.NULL_LONG

isImmutable

public boolean isImmutable()

Description copied from interface: ColumnSource

Determine if this column source is immutable, meaning that the values at a given row key never change.

Specified by:

isImmutable in interface ColumnSource<TIME_TYPE>

Specified by:

isImmutable in interface MutableColumnSource<TIME_TYPE>

Returns:

true if the values at a given row key of the column source never change, false otherwise

allowsReinterpret

public <ALTERNATE_DATA_TYPE> boolean allowsReinterpret(@NotNull
 @NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)

Description copied from interface: ColumnSource

Test if a reinterpret call will succeed.

Specified by:

allowsReinterpret in interface ColumnSource<TIME_TYPE>

Overrides:

allowsReinterpret in class AbstractColumnSource<Long>

Parameters:

alternateDataType - The alternative type to consider

Returns:

If a reinterpret on this column source with the supplied alternateDataType will succeed.

doReinterpret

public <ALTERNATE_DATA_TYPE>
ColumnSource<ALTERNATE_DATA_TYPE> doReinterpret(@NotNull
 @NotNull Class<ALTERNATE_DATA_TYPE> alternateDataType)
                                         throws IllegalArgumentException

Description copied from class: AbstractColumnSource

Supply allowed reinterpret results. The default implementation handles the most common case to avoid code duplication.

Overrides:

doReinterpret in class AbstractColumnSource<Long>

Parameters:

alternateDataType - The alternate data type

Returns:

The resulting ColumnSource

Throws:

IllegalArgumentException

makeFillContext

public ChunkSource.FillContext makeFillContext(int chunkCapacity,
 SharedContext sharedContext)

Description copied from interface: FillContextMaker

Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.

Specified by:

makeFillContext in interface DefaultChunkSource<TIME_TYPE>

Specified by:

makeFillContext in interface FillContextMaker

Parameters:

chunkCapacity - The maximum size of any WritableChunk that will be filled with this context

sharedContext - Shared store of intermediate results.

Returns:

A context for use with fill operations

fillChunk

public void fillChunk(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super Values> destination,
 @NotNull
 @NotNull RowSequence rowSequence)

Description copied from interface: ChunkSource

Populates the given destination chunk with data corresponding to the keys from the given RowSequence.

Specified by:

fillChunk in interface ChunkSource<TIME_TYPE>

Overrides:

fillChunk in class AbstractColumnSource<Long>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk.

destination - The chunk to be populated according to rowSequence. No assumptions shall be made about the size of the chunk shall be made. The chunk will be populated from position [0,rowSequence.size()).

rowSequence - An RowSequence representing the keys to be fetched

fillPrevChunk

public void fillPrevChunk(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super Values> destination,
 @NotNull
 @NotNull RowSequence rowSequence)

Description copied from interface: ChunkSource.WithPrev

Populates the given destination chunk with data corresponding to the keys from the given RowSequence.

Specified by:

fillPrevChunk in interface ChunkSource.WithPrev<TIME_TYPE>

Overrides:

fillPrevChunk in class AbstractColumnSource<Long>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk.

destination - The chunk to be populated according to rowSequence. No assumptions shall be made about the size of the chunk shall be made. The chunk will be populated from position [0,rowSequence.size()).

rowSequence - An RowSequence representing the keys to be fetched