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

Class LongAsTimeSource<TIME_TYPE>

java.lang.Object

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

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

All Implemented Interfaces:

ChunkSource<Values>, ChunkSource.WithPrev<Values>, ColumnSource<TIME_TYPE>, ElementSource<TIME_TYPE>, FillContextMaker, GetContextMaker, ColumnSourceGetDefaults.ForObject<TIME_TYPE>, DefaultChunkSource<Values>, DefaultChunkSource.WithPrev<Values>, MutableColumnSource<TIME_TYPE>, MutableColumnSourceGetDefaults.ForObject<TIME_TYPE>, ConvertibleTimeSource, Releasable, TupleExporter<TIME_TYPE>, TupleSource<TIME_TYPE>

Direct Known Subclasses:

LongAsInstantColumnSource, LongAsLocalDateColumnSource, LongAsLocalTimeColumnSource, LongAsZonedDateTimeColumnSource

public abstract class LongAsTimeSource<TIME_TYPE>
extends AbstractColumnSource<TIME_TYPE>
implements MutableColumnSourceGetDefaults.ForObject<TIME_TYPE>, ConvertibleTimeSource

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

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.sources.ConvertibleTimeSource

ConvertibleTimeSource.Zoned

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
LongAsTimeSource(Class<TIME_TYPE> type, ColumnSource<Long> 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.
TIME_TYPE	get(long index)	Get the value from the source.
TIME_TYPE	getPrev(long index)	Get the previous value at the rowKey.
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 TIME_TYPE	makeValue(long val)
boolean	supportsTimeConversion()	Check if this class supports time conversion.
ColumnSource<Long>	toEpochNano()	Convert this source to a long source of nanoseconds of epoch.
ColumnSource<Instant>	toInstant()	Convert this source to an Instant source.
ColumnSource<LocalDate>	toLocalDate(@NotNull ZoneId zone)	Convert this source to a LocalDate source at the specified zone.
ColumnSource<LocalTime>	toLocalTime(@NotNull ZoneId zone)	Convert this source to a LocalTime source at the specified zone.
ColumnSource<ZonedDateTime>	toZonedDateTime(@NotNull ZoneId zone)	Convert this source to a ZonedDateTime source at the specified zone.

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.ForObject

getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, 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.ForObject

getPrevBoolean, getPrevByte, getPrevChar, getPrevDouble, getPrevFloat, getPrevInt, getPrevLong, 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

LongAsTimeSource

public LongAsTimeSource(Class<TIME_TYPE> type,
 ColumnSource<Long> alternateColumnSource)

Method Details

makeValue

protected abstract TIME_TYPE makeValue(long val)

get

public TIME_TYPE get(long index)

Description copied from interface: ElementSource

Get the value from the source. This may return boxed values for basic types. RowKeys that are not present are undefined.

Specified by:

get in interface ElementSource<TIME_TYPE>

Parameters:

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

Returns:

the value at the rowKey, potentially null.

getPrev

public TIME_TYPE getPrev(long index)

Description copied from interface: ElementSource

Get the previous value at the rowKey. Previous values are used during an UG update cycle to process changes in data. During normal operation previous values will be identical to current values. RowKeys that were not present are undefined.

Specified by:

getPrev in interface ElementSource<TIME_TYPE>

Parameters:

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

Returns:

the previous value at the rowKey, potentially null.

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<TIME_TYPE>

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<TIME_TYPE>

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<TIME_TYPE>

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<TIME_TYPE>

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

toZonedDateTime

public ColumnSource<ZonedDateTime> toZonedDateTime(@NotNull
 @NotNull ZoneId zone)

Description copied from interface: ConvertibleTimeSource

Convert this source to a ZonedDateTime source at the specified zone.

Specified by:

toZonedDateTime in interface ConvertibleTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a ZonedDateTime

toLocalDate

public ColumnSource<LocalDate> toLocalDate(@NotNull
 @NotNull ZoneId zone)

Description copied from interface: ConvertibleTimeSource

Convert this source to a LocalDate source at the specified zone.

Specified by:

toLocalDate in interface ConvertibleTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a LocalDate

toLocalTime

public ColumnSource<LocalTime> toLocalTime(@NotNull
 @NotNull ZoneId zone)

Description copied from interface: ConvertibleTimeSource

Convert this source to a LocalTime source at the specified zone.

Specified by:

toLocalTime in interface ConvertibleTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a LocalTime

toInstant

public ColumnSource<Instant> toInstant()

Description copied from interface: ConvertibleTimeSource

Convert this source to an Instant source.

Specified by:

toInstant in interface ConvertibleTimeSource

Returns:

a view of this source asan Instant

toEpochNano

public ColumnSource<Long> toEpochNano()

Description copied from interface: ConvertibleTimeSource

Convert this source to a long source of nanoseconds of epoch.

Specified by:

toEpochNano in interface ConvertibleTimeSource

Returns:

a view of this source as a ZonedDateTime

supportsTimeConversion

public boolean supportsTimeConversion()

Description copied from interface: ConvertibleTimeSource

Check if this class supports time conversion. If false, all other methods will fail.

Specified by:

supportsTimeConversion in interface ConvertibleTimeSource

Returns:

true if time conversion is supported.