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

Class SingleValueColumnSource<T>

java.lang.Object

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

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

All Implemented Interfaces:

ChunkSource<Attributes.Values>, ChunkSource.WithPrev<Attributes.Values>, DefaultChunkSource<Attributes.Values>, DefaultChunkSource.WithPrev<Attributes.Values>, FillContextMaker, GetContextMaker, ColumnSource<T>, ElementSource<T>, Releasable, WritableChunkSink<Attributes.Values>, WritableSource<T>, TupleExporter<T>, TupleSource<T>, ShiftData.ShiftCallback, Serializable

Direct Known Subclasses:

BooleanSingleValueSource, ByteSingleValueSource, CharacterSingleValueSource, DoubleSingleValueSource, FloatSingleValueSource, IntegerSingleValueSource, LongSingleValueSource, ObjectSingleValueSource, ShortSingleValueSource

public abstract class SingleValueColumnSource<T>
extends AbstractColumnSource<T>
implements WritableSource<T>, WritableChunkSink<Attributes.Values>, ShiftData.ShiftCallback, Serializable

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.FillContext, ChunkSource.GetContext, ChunkSource.WithPrev<ATTR extends Attributes.Any>

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>

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

WritableChunkSink.FillFromContext

Field Summary

Fields

Modifier and Type	Field	Description
protected long	changeTime
protected boolean	isTrackingPrevValues

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

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

DEFAULT_FILL_FROM_INSTANCE

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

ZERO_LENGTH_WRITABLE_SOURCE_ARRAY

Method Summary

Modifier and Type	Method	Description
void	ensureCapacity(long capacity)
static <T> SingleValueColumnSource	getSingleValueColumnSource(Class<T> type)
boolean	isImmutable()	Determine if this column source is immutable, meaning that the values at a given index key never change.
WritableChunkSink.FillFromContext	makeFillFromContext(int chunkCapacity)	Provide a default, empty WritableChunkSink.FillFromContext for use with our default WritableSource.fillFromChunk(com.illumon.iris.db.v2.sources.WritableChunkSink.FillFromContext, com.illumon.iris.db.v2.sources.chunk.Chunk<? extends com.illumon.iris.db.v2.sources.chunk.Attributes.Values>, com.illumon.iris.db.v2.utils.OrderedKeys).
void	set(byte value)
void	set(char value)
void	set(double value)
void	set(float value)
void	set(int value)
void	set(long value)
void	set(short value)
void	set(T value)
void	shift(long start, long end, long offset)
void	startTrackingPrevValues()	ColumnSource implementations that track previous values have the option to not actually start tracking previous values until this method is called.

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

allowsReinterpret, defaultFillChunk, doReinterpret, fillChunk, fillPrevChunk, getComponentType, getGroupingBuilder, getGroupingProvider, getNativeType, getType, hasGrouping, isSerializable, match, 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

fillChunk, getChunkType

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

fillPrevChunk

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

allowsReinterpret, cast, createPreviousTuple, createTuple, createTupleFromValues, exportElement, exportElement, exportToExternalKey, getColumnSources, getComponentType, getGroupingBuilder, getGroupingProvider, getNativeType, getPrevSource, getType, hasGrouping, match, reinterpret, releaseCachedResources, setGroupingProvider

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

getChunk, getChunk, getChunkByFilling, makeFillContext, makeGetContext

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

getPrevChunk, getPrevChunk, getPrevChunkByFilling

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

get, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, getPrev, getPrevBoolean, getPrevByte, getPrevChar, getPrevDouble, getPrevFloat, getPrevInt, getPrevLong, getPrevShort, getShort

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

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

copy, fillFromChunk, fillFromChunkUnordered, set, set, set, set, set, set, set, set, setNull, setNull

Field Details

changeTime

protected transient long changeTime

isTrackingPrevValues

protected boolean isTrackingPrevValues

Method Details

startTrackingPrevValues

public final void startTrackingPrevValues()

Description copied from interface: ColumnSource

ColumnSource implementations that track previous values have the option to not actually start tracking previous values until this method is called. This is an option, not an obligation: some simple ColumnSource implementations (like TSingleValueSource for various T) always track previous values; other implementations (like PrevColumnSource) never do; some (like TArrayColumnSource) only start tracking once this method is called. An immutable column source can not have distinct prev values; therefore it is implemented as a no-op.

Specified by:

startTrackingPrevValues in interface ColumnSource<T>

shift

public void shift(long start, long end, long offset)

Specified by:

shift in interface ShiftData.ShiftCallback

getSingleValueColumnSource

public static <T> SingleValueColumnSource getSingleValueColumnSource(Class<T> type)

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

set

public void set(char value)

set

public void set(byte value)

set

public void set(double value)

set

public void set(float value)

set

public void set(short value)

set

public void set(long value)

set

public void set(int value)

set

public void set(T value)

ensureCapacity

public final void ensureCapacity(long capacity)

Specified by:

ensureCapacity in interface WritableSource<T>

makeFillFromContext

public WritableChunkSink.FillFromContext makeFillFromContext(int chunkCapacity)

Description copied from interface: WritableSource

Provide a default, empty WritableChunkSink.FillFromContext for use with our default WritableSource.fillFromChunk(com.illumon.iris.db.v2.sources.WritableChunkSink.FillFromContext, com.illumon.iris.db.v2.sources.chunk.Chunk<? extends com.illumon.iris.db.v2.sources.chunk.Attributes.Values>, com.illumon.iris.db.v2.utils.OrderedKeys).

Specified by:

makeFillFromContext in interface WritableChunkSink<T>

Specified by:

makeFillFromContext in interface WritableSource<T>