Package com.illumon.iris.db.v2.sources

Class ShiftedColumnSource<T>

java.lang.Object

com.illumon.iris.db.v2.sources.AbstractColumnSource<T>

com.illumon.iris.db.v2.sources.ShiftedColumnSource<T>

Type Parameters:

T -

All Implemented Interfaces:

ChunkSource<Attributes.Values>, ChunkSource.WithPrev<Attributes.Values>, DefaultChunkSource<Attributes.Values>, DefaultChunkSource.WithPrev<Attributes.Values>, FillContextMaker, GetContextMaker, ColumnSource<T>, ConvertableTimeSource, ElementSource<T>, Releasable, UngroupableColumnSource, TupleExporter<T>, TupleSource<T>, Serializable

public class ShiftedColumnSource<T>
extends AbstractColumnSource<T>
implements UngroupableColumnSource, ConvertableTimeSource

A ColumnSource that provides internal shifted redirectionIndex logic to access into an underlying wrapped ColumnSource. This is used, in a ShiftedColumnOperation.addShiftedColumns(Table, long, String...)}.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.illumon.iris.db.v2.sources.AbstractColumnSource

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

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

ChunkSource.WithPrev<ATTR extends Attributes.Any>

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.ConvertableTimeSource

ConvertableTimeSource.Zoned

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.chunk.DefaultChunkSource

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

Field Summary

Fields

Modifier and Type	Field	Description
protected final ReadOnlyIndex	index
protected final ColumnSource<T>	innerSource
protected final long	shift

Fields inherited from class com.illumon.iris.db.v2.sources.AbstractColumnSource

componentType, type

Fields inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Fields inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource.WithPrev

ZERO_LENGTH_CHUNK_SOURCE_WITH_PREV_ARRAY

Fields inherited from interface com.illumon.iris.db.v2.sources.ColumnSource

ZERO_LENGTH_COLUMN_SOURCE_ARRAY

Constructor Summary

Constructors

Constructor	Description
ShiftedColumnSource(ReadOnlyIndex index, ColumnSource<T> innerSource, long shift)

Method Summary

Modifier and Type	Method	Description
Index	buildRedirectedKeys(boolean usePrev, OrderedKeys toRedirect, org.apache.commons.lang3.mutable.MutableInt nullAtBeginningOrEnd)	Returns the appropriate Redirected Index for the passed in ordered keys based on current or prev Index.
protected <ALTERNATE_DATA_TYPE> ColumnSource<ALTERNATE_DATA_TYPE>	doReinterpret(Class<ALTERNATE_DATA_TYPE> alternateDataType)	Supply allowed reinterpret results.
void	fillChunk(ChunkSource.FillContext context, WritableChunk<? super Attributes.Values> destination, OrderedKeys orderedKeys)	Populates the given destination chunk with data corresponding to the keys from the given OrderedKeys.
void	fillPrevChunk(ChunkSource.FillContext context, WritableChunk<? super Attributes.Values> destination, OrderedKeys orderedKeys)	Populates the given destination chunk with data corresponding to the keys from the given OrderedKeys.
T	get(long index)	Get the value from the source.
Boolean	getBoolean(long index)	Get the value at the index as a Boolean.
byte	getByte(long index)	Get the value at the index as a byte.
char	getChar(long index)	Get the value at the index as a char.
Chunk<? extends Attributes.Values>	getChunk(ChunkSource.GetContext context, OrderedKeys orderedKeys)	Returns a chunk of data corresponding to the keys from the given OrderedKeys.
double	getDouble(long index)	Get the value at the index as a double.
float	getFloat(long index)	Get the value at the index as a float.
int	getInt(long index)	Get the value at the index as an int.
long	getLong(long index)	Get the value at the index as a long.
T	getPrev(long index)	Get the previous value at the index.
Boolean	getPrevBoolean(long index)	Get the previous value at the index as a Boolean.
byte	getPrevByte(long index)	Get the previous value at the index as a byte.
char	getPrevChar(long index)	Get the previous value at the index as a char.
Chunk<? extends Attributes.Values>	getPrevChunk(ChunkSource.GetContext context, OrderedKeys orderedKeys)	Returns a chunk of previous data corresponding to the keys from the given OrderedKeys.
double	getPrevDouble(long index)	Get the previous value at the index as a double.
float	getPrevFloat(long index)	Get the previous value at the index as a float.
int	getPrevInt(long index)	Get the previous value at the index as an int.
long	getPrevLong(long index)	Get the previous value at the index as a long.
short	getPrevShort(long index)	Get the previous value at the index as a short.
short	getShort(long index)	Get the value at the index as a short.
T	getUngrouped(long columnIndex, int arrayIndex)	Reach into a grouped column source and pull one element out of the array.
Boolean	getUngroupedBoolean(long columnIndex, int arrayIndex)
byte	getUngroupedByte(long columnIndex, int arrayIndex)
char	getUngroupedChar(long columnIndex, int arrayIndex)
double	getUngroupedDouble(long columnIndex, int arrayIndex)
float	getUngroupedFloat(long columnIndex, int arrayIndex)
int	getUngroupedInt(long columnIndex, int arrayIndex)
long	getUngroupedLong(long columnIndex, int arrayIndex)
T	getUngroupedPrev(long columnIndex, int arrayIndex)
Boolean	getUngroupedPrevBoolean(long columnIndex, int arrayIndex)
byte	getUngroupedPrevByte(long columnIndex, int arrayIndex)
char	getUngroupedPrevChar(long columnIndex, int arrayIndex)
double	getUngroupedPrevDouble(long columnIndex, int arrayIndex)
float	getUngroupedPrevFloat(long columnIndex, int arrayIndex)
int	getUngroupedPrevInt(long columnIndex, int arrayIndex)
long	getUngroupedPrevLong(long columnIndex, int arrayIndex)
short	getUngroupedPrevShort(long columnIndex, int arrayIndex)
long	getUngroupedPrevSize(long columnIndex)
short	getUngroupedShort(long columnIndex, int arrayIndex)
long	getUngroupedSize(long columnIndex)
boolean	isImmutable()	Determine if this column source is immutable, meaning that the values at a given index key never change.
boolean	isUngroupable()	Does this particular instance of the column source support ungrouping?
com.illumon.iris.db.v2.sources.ShiftedColumnSource.FillContext	makeFillContext(int chunkCapacity, SharedContext sharedContext)	Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.
ChunkSource.GetContext	makeGetContext(int chunkCapacity, SharedContext sharedContext)	Allocate a new ChunkSource.GetContext for retrieving chunks from this GetContextMaker, typically a ChunkSource.
void	releaseCachedResources()	Release any resources held for caching purposes.
boolean	supportsTimeConversion()	Check if this class supports time conversion.
ColumnSource<DBDateTime>	toDBDateTime()	Convert this source to a DBDateTime source.
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(ZoneId zone)	Convert this source to a LocalDate source at the specified zone.
ColumnSource<LocalTime>	toLocalTime(ZoneId zone)	Convert this source to a LocalTime source at the specified zone.
ColumnSource<ZonedDateTime>	toZonedDateTime(ZoneId zone)	Convert this source to a ZonedDateTime source at the specified zone.

Methods inherited from class com.illumon.iris.db.v2.sources.AbstractColumnSource

allowsReinterpret, canUseGrouping, defaultFillChunk, getComponentType, getGroupingBuilder, getGroupingProvider, getNativeType, getType, hasGrouping, hasGrouping, isSerializable, match, matchWithGrouping, reinterpret, setGroupingProvider

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

getChunkType

Methods inherited from interface com.illumon.iris.db.v2.sources.ColumnSource

cast, createPreviousTuple, createTuple, createTupleFromValues, exportElement, exportElement, exportToExternalKey, getColumnSources, getPrevSource, startTrackingPrevValues

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.DefaultChunkSource

getChunk, getChunkByFilling

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.DefaultChunkSource.WithPrev

getPrevChunk, getPrevChunkByFilling

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.FillContextMaker

makeFillContext

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.GetContextMaker

makeGetContext

Methods inherited from interface com.illumon.iris.db.v2.tuples.TupleExporter

exportElementReinterpreted

Methods inherited from interface com.illumon.iris.db.v2.tuples.TupleSource

createTupleFromReinterpretedValues

Field Details

innerSource

protected final ColumnSource<T> innerSource

index

protected final ReadOnlyIndex index

shift

protected final long shift

Constructor Details

ShiftedColumnSource

public ShiftedColumnSource(@NotNull
 ReadOnlyIndex index,
 @NotNull
 ColumnSource<T> innerSource,
 long shift)

Method Details

buildRedirectedKeys

@NotNull
public Index buildRedirectedKeys(boolean usePrev,
 @NotNull
 OrderedKeys toRedirect,
 @NotNull
 org.apache.commons.lang3.mutable.MutableInt nullAtBeginningOrEnd)

Returns the appropriate Redirected Index for the passed in ordered keys based on current or prev Index.

Parameters:

usePrev - indicates if redirection is needed in pre-shift or post-shift space

toRedirect - keys to Redirect

nullAtBeginningOrEnd - holds the calculated count of null at beginning or end when processing is complete

Returns:

returns the appropriate Redirected Index for the passed in ordered keys

isImmutable

public boolean isImmutable()

Description copied from interface: ColumnSource

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

Specified by:

isImmutable in interface ColumnSource<T>

Returns:

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

get

@Nullable
public T get(long index)

Description copied from interface: ElementSource

Get the value from the source. This may return boxed values for basic types.

Specified by:

get in interface ElementSource<T>

Parameters:

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

Returns:

the value at the index, potentially null.

getBoolean

@Nullable
public Boolean getBoolean(long index)

Description copied from interface: ElementSource

Get the value at the index as a Boolean.

Specified by:

getBoolean in interface ElementSource<T>

Parameters:

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

Returns:

the boolean at the index, potentially null.

getByte

public byte getByte(long index)

Description copied from interface: ElementSource

Get the value at the index as a byte.

Specified by:

getByte in interface ElementSource<T>

Parameters:

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

Returns:

the boolean at the index, null values are represented by QueryConstants.NULL_BYTE

getChar

public char getChar(long index)

Description copied from interface: ElementSource

Get the value at the index as a char.

Specified by:

getChar in interface ElementSource<T>

Parameters:

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

Returns:

the char at the index, null values are represented by QueryConstants.NULL_CHAR

getDouble

public double getDouble(long index)

Description copied from interface: ElementSource

Get the value at the index as a double.

Specified by:

getDouble in interface ElementSource<T>

Parameters:

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

Returns:

the double at the index, null values are represented by QueryConstants.NULL_DOUBLE

getFloat

public float getFloat(long index)

Description copied from interface: ElementSource

Get the value at the index as a float.

Specified by:

getFloat in interface ElementSource<T>

Parameters:

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

Returns:

the float at the index, null values are represented by QueryConstants.NULL_FLOAT

getInt

public int getInt(long index)

Description copied from interface: ElementSource

Get the value at the index as an int.

Specified by:

getInt in interface ElementSource<T>

Parameters:

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

Returns:

the int at the index, null values are represented by QueryConstants.NULL_INT

getLong

public long getLong(long index)

Description copied from interface: ElementSource

Get the value at the index as a long.

Specified by:

getLong in interface ElementSource<T>

Parameters:

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

Returns:

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

getShort

public short getShort(long index)

Description copied from interface: ElementSource

Get the value at the index as a short.

Specified by:

getShort in interface ElementSource<T>

Parameters:

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

Returns:

the short at the index, null values are represented by QueryConstants.NULL_SHORT

getPrev

@Nullable
public T getPrev(long index)

Description copied from interface: ElementSource

Get the previous value at the index. Previous values are used during an LTM update cycle to process changes in data. During normal operation previous values will be identical to current values.

Specified by:

getPrev in interface ElementSource<T>

Parameters:

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

Returns:

the previous value at the index, or null.

getPrevBoolean

@Nullable
public Boolean getPrevBoolean(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevBoolean in interface ElementSource<T>

Parameters:

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

Returns:

the previous boolean at the index, or null.

getPrevByte

public byte getPrevByte(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevByte in interface ElementSource<T>

Parameters:

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

Returns:

the previous boolean at the index, null values are represented by QueryConstants.NULL_BYTE

getPrevChar

public char getPrevChar(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevChar in interface ElementSource<T>

Parameters:

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

Returns:

the previous char at the index, null values are represented by QueryConstants.NULL_CHAR

getPrevDouble

public double getPrevDouble(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevDouble in interface ElementSource<T>

Parameters:

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

Returns:

the previous double at the index, null values are represented by QueryConstants.NULL_DOUBLE

getPrevFloat

public float getPrevFloat(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevFloat in interface ElementSource<T>

Parameters:

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

Returns:

the previous float at the index, null values are represented by QueryConstants.NULL_FLOAT

getPrevInt

public int getPrevInt(long index)

Description copied from interface: ElementSource

Get the previous value at the index as an int. See ElementSource.getPrev(long) for more details.

Specified by:

getPrevInt in interface ElementSource<T>

Parameters:

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

Returns:

the previous int at the index, null values are represented by QueryConstants.NULL_INT

getPrevLong

public long getPrevLong(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevLong in interface ElementSource<T>

Parameters:

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

Returns:

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

getPrevShort

public short getPrevShort(long index)

Description copied from interface: ElementSource

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

Specified by:

getPrevShort in interface ElementSource<T>

Parameters:

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

Returns:

the previous short at the index, null values are represented by QueryConstants.NULL_SHORT

isUngroupable

public boolean isUngroupable()

Description copied from interface: UngroupableColumnSource

Does this particular instance of the column source support ungrouping?

Specified by:

isUngroupable in interface UngroupableColumnSource

Returns:

true if you can call the getUngrouped family of methods and get a valid answer.

getUngroupedSize

public long getUngroupedSize(long columnIndex)

Specified by:

getUngroupedSize in interface UngroupableColumnSource

Parameters:

columnIndex - the index within this column to interrogate

Returns:

the size of the DbArray at columnIndex.

getUngroupedPrevSize

public long getUngroupedPrevSize(long columnIndex)

Specified by:

getUngroupedPrevSize in interface UngroupableColumnSource

getUngrouped

public T getUngrouped(long columnIndex,
 int arrayIndex)

Description copied from interface: UngroupableColumnSource

Reach into a grouped column source and pull one element out of the array.

Specified by:

getUngrouped in interface UngroupableColumnSource

Parameters:

columnIndex - the index within the column of the cell to get

arrayIndex - the index within the array at the specified cell

Returns:

Equivalent to ((DbArray)columnSource.get(columnIndex)).get(arrayIndex)

getUngroupedPrev

public T getUngroupedPrev(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrev in interface UngroupableColumnSource

getUngroupedBoolean

public Boolean getUngroupedBoolean(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedBoolean in interface UngroupableColumnSource

getUngroupedPrevBoolean

public Boolean getUngroupedPrevBoolean(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevBoolean in interface UngroupableColumnSource

getUngroupedDouble

public double getUngroupedDouble(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedDouble in interface UngroupableColumnSource

getUngroupedPrevDouble

public double getUngroupedPrevDouble(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevDouble in interface UngroupableColumnSource

getUngroupedFloat

public float getUngroupedFloat(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedFloat in interface UngroupableColumnSource

getUngroupedPrevFloat

public float getUngroupedPrevFloat(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevFloat in interface UngroupableColumnSource

getUngroupedByte

public byte getUngroupedByte(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedByte in interface UngroupableColumnSource

getUngroupedPrevByte

public byte getUngroupedPrevByte(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevByte in interface UngroupableColumnSource

getUngroupedChar

public char getUngroupedChar(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedChar in interface UngroupableColumnSource

getUngroupedPrevChar

public char getUngroupedPrevChar(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevChar in interface UngroupableColumnSource

getUngroupedShort

public short getUngroupedShort(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedShort in interface UngroupableColumnSource

getUngroupedPrevShort

public short getUngroupedPrevShort(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevShort in interface UngroupableColumnSource

getUngroupedInt

public int getUngroupedInt(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedInt in interface UngroupableColumnSource

getUngroupedPrevInt

public int getUngroupedPrevInt(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevInt in interface UngroupableColumnSource

getUngroupedLong

public long getUngroupedLong(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedLong in interface UngroupableColumnSource

getUngroupedPrevLong

public long getUngroupedPrevLong(long columnIndex,
 int arrayIndex)

Specified by:

getUngroupedPrevLong in interface UngroupableColumnSource

releaseCachedResources

public void releaseCachedResources()

Description copied from interface: ColumnSource

Release any resources held for caching purposes. Implementations need not guarantee that concurrent accesses are correct, as the purpose of this method is to ensure cleanup for column sources that will no longer be used.

Specified by:

releaseCachedResources in interface ColumnSource<T>

Specified by:

releaseCachedResources in interface Releasable

toZonedDateTime

public ColumnSource<ZonedDateTime> toZonedDateTime(ZoneId zone)

Description copied from interface: ConvertableTimeSource

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

Specified by:

toZonedDateTime in interface ConvertableTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a ZonedDateTime

toLocalDate

public ColumnSource<LocalDate> toLocalDate(ZoneId zone)

Description copied from interface: ConvertableTimeSource

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

Specified by:

toLocalDate in interface ConvertableTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a LocalDate

toLocalTime

public ColumnSource<LocalTime> toLocalTime(ZoneId zone)

Description copied from interface: ConvertableTimeSource

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

Specified by:

toLocalTime in interface ConvertableTimeSource

Parameters:

zone - the time zone

Returns:

a view of this source as a LocalTime

toInstant

public ColumnSource<Instant> toInstant()

Description copied from interface: ConvertableTimeSource

Convert this source to an Instant source.

Specified by:

toInstant in interface ConvertableTimeSource

Returns:

a view of this source as a Instant

toDBDateTime

public ColumnSource<DBDateTime> toDBDateTime()

Description copied from interface: ConvertableTimeSource

Convert this source to a DBDateTime source.

Specified by:

toDBDateTime in interface ConvertableTimeSource

Returns:

a view of this source as a DBDateTime

toEpochNano

public ColumnSource<Long> toEpochNano()

Description copied from interface: ConvertableTimeSource

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

Specified by:

toEpochNano in interface ConvertableTimeSource

Returns:

a view of this source as a ZonedDateTime

supportsTimeConversion

public boolean supportsTimeConversion()

Description copied from interface: ConvertableTimeSource

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

Specified by:

supportsTimeConversion in interface ConvertableTimeSource

Returns:

true if time conversion is supported.

doReinterpret

protected <ALTERNATE_DATA_TYPE>
ColumnSource<ALTERNATE_DATA_TYPE> doReinterpret(@NotNull
 Class<ALTERNATE_DATA_TYPE> alternateDataType)

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<T>

Type Parameters:

ALTERNATE_DATA_TYPE - the dataType to reinterpret to

Parameters:

alternateDataType - The alternate data type

Returns:

The resulting ColumnSource

makeFillContext

public com.illumon.iris.db.v2.sources.ShiftedColumnSource.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<T>

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
 ChunkSource.FillContext context,
 @NotNull
 WritableChunk<? super Attributes.Values> destination,
 @NotNull
 OrderedKeys orderedKeys)

Description copied from interface: ChunkSource

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

Specified by:

fillChunk in interface ChunkSource<T>

Overrides:

fillChunk in class AbstractColumnSource<T>

Parameters:

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

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

orderedKeys - An OrderedKeys representing the keys to be fetched

fillPrevChunk

public void fillPrevChunk(@NotNull
 ChunkSource.FillContext context,
 @NotNull
 WritableChunk<? super Attributes.Values> destination,
 @NotNull
 OrderedKeys orderedKeys)

Description copied from interface: ChunkSource.WithPrev

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

Specified by:

fillPrevChunk in interface ChunkSource.WithPrev<T>

Overrides:

fillPrevChunk in class AbstractColumnSource<T>

Parameters:

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

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

orderedKeys - An OrderedKeys representing the keys to be fetched

getChunk

public Chunk<? extends Attributes.Values> getChunk(@NotNull
 ChunkSource.GetContext context,
 @NotNull
 OrderedKeys orderedKeys)

Description copied from interface: ChunkSource

Returns a chunk of data corresponding to the keys from the given OrderedKeys.

Specified by:

getChunk in interface ChunkSource<T>

Specified by:

getChunk in interface DefaultChunkSource<T>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk. In particular, the Context may be used to provide a Chunk data pool

orderedKeys - An OrderedKeys representing the keys to be fetched

Returns:

A chunk of data corresponding to the keys from the given OrderedKeys

getPrevChunk

public Chunk<? extends Attributes.Values> getPrevChunk(@NotNull
 ChunkSource.GetContext context,
 @NotNull
 OrderedKeys orderedKeys)

Description copied from interface: ChunkSource.WithPrev

Returns a chunk of previous data corresponding to the keys from the given OrderedKeys.

Specified by:

getPrevChunk in interface ChunkSource.WithPrev<T>

Specified by:

getPrevChunk in interface DefaultChunkSource.WithPrev<T>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk. In particular, the Context may be used to provide a Chunk data pool

orderedKeys - An OrderedKeys representing the keys to be fetched

Returns:

A chunk of data corresponding to the keys from the given OrderedKeys.

makeGetContext

public ChunkSource.GetContext makeGetContext(int chunkCapacity,
 SharedContext sharedContext)

Description copied from interface: GetContextMaker

Allocate a new ChunkSource.GetContext for retrieving chunks from this GetContextMaker, typically a ChunkSource.

Specified by:

makeGetContext in interface DefaultChunkSource<T>

Specified by:

makeGetContext in interface GetContextMaker

Parameters:

chunkCapacity - The maximum size required for any WritableChunk allocated as part of the result.

sharedContext - Shared store of intermediate results.

Returns:

A context for use with get operations