Module org.apache.arrow.vector

Package org.apache.arrow.vector.complex.impl

Class UuidReaderImpl

java.lang.Object

org.apache.arrow.vector.complex.impl.AbstractFieldReader

org.apache.arrow.vector.complex.impl.UuidReaderImpl

All Implemented Interfaces:

Iterable<String>, Positionable, BaseReader, BaseReader.ListReader, BaseReader.MapReader, BaseReader.RepeatedListReader, BaseReader.RepeatedMapReader, BaseReader.RepeatedStructReader, BaseReader.ScalarReader, BaseReader.StructReader, BigIntReader, BitReader, DateDayReader, DateMilliReader, Decimal256Reader, DecimalReader, DurationReader, ExtensionReader, FieldReader, FixedSizeBinaryReader, Float2Reader, Float4Reader, Float8Reader, IntervalDayReader, IntervalMonthDayNanoReader, IntervalYearReader, IntReader, LargeVarBinaryReader, LargeVarCharReader, SmallIntReader, TimeMicroReader, TimeMilliReader, TimeNanoReader, TimeSecReader, TimeStampMicroReader, TimeStampMicroTZReader, TimeStampMilliReader, TimeStampMilliTZReader, TimeStampNanoReader, TimeStampNanoTZReader, TimeStampSecReader, TimeStampSecTZReader, TinyIntReader, UInt1Reader, UInt2Reader, UInt4Reader, UInt8Reader, VarBinaryReader, VarCharReader, ViewVarBinaryReader, ViewVarCharReader

public class UuidReaderImpl
extends AbstractFieldReader

Reader implementation for UuidVector.

Provides methods to read UUID values from a vector, including support for reading into UuidHolder and retrieving values as UUID objects.

See Also:

• UuidVector
• UuidType

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.arrow.vector.complex.reader.BaseReader

BaseReader.ComplexReader, BaseReader.ListReader, BaseReader.MapReader, BaseReader.RepeatedListReader, BaseReader.RepeatedMapReader, BaseReader.RepeatedStructReader, BaseReader.ScalarReader, BaseReader.StructReader

Constructor Summary

Constructors

Constructor	Description
UuidReaderImpl(UuidVector vector)	Constructs a reader for the given UUID vector.

Method Summary

Modifier and Type	Method	Description
void	copyAsValue(AbstractExtensionTypeWriter writer)
void	copyAsValue(DenseUnionWriter writer)
void	copyAsValue(UnionWriter writer)
void	copyAsValue(BaseWriter.ListWriter writer)
void	copyAsValue(BaseWriter.MapWriter writer)
Field	getField()
Types.MinorType	getMinorType()
int	getPosition()
protected int	idx()
boolean	isSet()	Returns true if the current value of the reader is not null
Iterator<String>	iterator()
boolean	next()
void	read(int index, DenseUnionHolder holder)
void	read(int arrayIndex, ExtensionHolder holder)
void	read(int index, UnionHolder holder)
void	read(DenseUnionHolder holder)
void	read(ExtensionHolder holder)	Reads to the given extension holder.
void	read(UnionHolder holder)
Object	readObject()	Reads and returns an object representation of the extension type.
void	reset()
void	setPosition(int index)

Methods inherited from class org.apache.arrow.vector.complex.impl.AbstractFieldReader

copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsField, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, read, readBigDecimal, readBigDecimal, readBoolean, readBoolean, readByte, readByte, readByteArray, readByteArray, readCharacter, readCharacter, readDouble, readDouble, readDuration, readDuration, reader, reader, readFloat, readFloat, readInteger, readInteger, readLocalDateTime, readLocalDateTime, readLong, readLong, readObject, readPeriod, readPeriod, readPeriodDuration, readPeriodDuration, readShort, readShort, readString, readString, readText, readText, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.arrow.vector.complex.reader.BaseReader

copyAsValue, copyAsValue, read, read, read, read, reset

Methods inherited from interface org.apache.arrow.vector.complex.reader.BaseReader.RepeatedListReader

copyAsValue, next

Methods inherited from interface org.apache.arrow.vector.complex.reader.BaseReader.RepeatedMapReader

copyAsValue, next

Methods inherited from interface org.apache.arrow.vector.complex.reader.BaseReader.RepeatedStructReader

next

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface org.apache.arrow.vector.complex.Positionable

getPosition, setPosition

Constructor Details

UuidReaderImpl

public UuidReaderImpl(UuidVector vector)

Constructs a reader for the given UUID vector.

Parameters:

vector - the UUID vector to read from

Method Details

getMinorType

public Types.MinorType getMinorType()

getField

public Field getField()

Specified by:

getField in interface BaseReader

Overrides:

getField in class AbstractFieldReader

isSet

public boolean isSet()

Description copied from class: AbstractFieldReader

Returns true if the current value of the reader is not null

Specified by:

isSet in interface BaseReader

Specified by:

isSet in interface BigIntReader

Specified by:

isSet in interface BitReader

Specified by:

isSet in interface DateDayReader

Specified by:

isSet in interface DateMilliReader

Specified by:

isSet in interface Decimal256Reader

Specified by:

isSet in interface DecimalReader

Specified by:

isSet in interface DurationReader

Specified by:

isSet in interface ExtensionReader

Specified by:

isSet in interface FixedSizeBinaryReader

Specified by:

isSet in interface Float2Reader

Specified by:

isSet in interface Float4Reader

Specified by:

isSet in interface Float8Reader

Specified by:

isSet in interface IntervalDayReader

Specified by:

isSet in interface IntervalMonthDayNanoReader

Specified by:

isSet in interface IntervalYearReader

Specified by:

isSet in interface IntReader

Specified by:

isSet in interface LargeVarBinaryReader

Specified by:

isSet in interface LargeVarCharReader

Specified by:

isSet in interface SmallIntReader

Specified by:

isSet in interface TimeMicroReader

Specified by:

isSet in interface TimeMilliReader

Specified by:

isSet in interface TimeNanoReader

Specified by:

isSet in interface TimeSecReader

Specified by:

isSet in interface TimeStampMicroReader

Specified by:

isSet in interface TimeStampMicroTZReader

Specified by:

isSet in interface TimeStampMilliReader

Specified by:

isSet in interface TimeStampMilliTZReader

Specified by:

isSet in interface TimeStampNanoReader

Specified by:

isSet in interface TimeStampNanoTZReader

Specified by:

isSet in interface TimeStampSecReader

Specified by:

isSet in interface TimeStampSecTZReader

Specified by:

isSet in interface TinyIntReader

Specified by:

isSet in interface UInt1Reader

Specified by:

isSet in interface UInt2Reader

Specified by:

isSet in interface UInt4Reader

Specified by:

isSet in interface UInt8Reader

Specified by:

isSet in interface VarBinaryReader

Specified by:

isSet in interface VarCharReader

Specified by:

isSet in interface ViewVarBinaryReader

Specified by:

isSet in interface ViewVarCharReader

Overrides:

isSet in class AbstractFieldReader

Returns:

whether the current value is set

read

public void read(ExtensionHolder holder)

Description copied from interface: ExtensionReader

Reads to the given extension holder.

Specified by:

read in interface ExtensionReader

Overrides:

read in class AbstractFieldReader

Parameters:

holder - the ExtensionHolder to read

read

public void read(int arrayIndex,
 ExtensionHolder holder)

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(AbstractExtensionTypeWriter writer)

Overrides:

copyAsValue in class AbstractFieldReader

readObject

public Object readObject()

Description copied from interface: ExtensionReader

Reads and returns an object representation of the extension type.

Specified by:

readObject in interface BigIntReader

Specified by:

readObject in interface BitReader

Specified by:

readObject in interface DateDayReader

Specified by:

readObject in interface DateMilliReader

Specified by:

readObject in interface Decimal256Reader

Specified by:

readObject in interface DecimalReader

Specified by:

readObject in interface DurationReader

Specified by:

readObject in interface ExtensionReader

Specified by:

readObject in interface FixedSizeBinaryReader

Specified by:

readObject in interface Float2Reader

Specified by:

readObject in interface Float4Reader

Specified by:

readObject in interface Float8Reader

Specified by:

readObject in interface IntervalDayReader

Specified by:

readObject in interface IntervalMonthDayNanoReader

Specified by:

readObject in interface IntervalYearReader

Specified by:

readObject in interface IntReader

Specified by:

readObject in interface LargeVarBinaryReader

Specified by:

readObject in interface LargeVarCharReader

Specified by:

readObject in interface SmallIntReader

Specified by:

readObject in interface TimeMicroReader

Specified by:

readObject in interface TimeMilliReader

Specified by:

readObject in interface TimeNanoReader

Specified by:

readObject in interface TimeSecReader

Specified by:

readObject in interface TimeStampMicroReader

Specified by:

readObject in interface TimeStampMicroTZReader

Specified by:

readObject in interface TimeStampMilliReader

Specified by:

readObject in interface TimeStampMilliTZReader

Specified by:

readObject in interface TimeStampNanoReader

Specified by:

readObject in interface TimeStampNanoTZReader

Specified by:

readObject in interface TimeStampSecReader

Specified by:

readObject in interface TimeStampSecTZReader

Specified by:

readObject in interface TinyIntReader

Specified by:

readObject in interface UInt1Reader

Specified by:

readObject in interface UInt2Reader

Specified by:

readObject in interface UInt4Reader

Specified by:

readObject in interface UInt8Reader

Specified by:

readObject in interface VarBinaryReader

Specified by:

readObject in interface VarCharReader

Specified by:

readObject in interface ViewVarBinaryReader

Specified by:

readObject in interface ViewVarCharReader

Overrides:

readObject in class AbstractFieldReader

Returns:

the object representation of the extension type

getPosition

public int getPosition()

Specified by:

getPosition in interface Positionable

setPosition

public void setPosition(int index)

Specified by:

setPosition in interface Positionable

idx

protected int idx()

reset

public void reset()

Specified by:

reset in interface BaseReader

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>

next

public boolean next()

Specified by:

next in interface BaseReader.RepeatedListReader

Specified by:

next in interface BaseReader.RepeatedMapReader

Specified by:

next in interface BaseReader.RepeatedStructReader

read

public void read(UnionHolder holder)

Specified by:

read in interface BaseReader

read

public void read(int index,
 UnionHolder holder)

Specified by:

read in interface BaseReader

copyAsValue

public void copyAsValue(UnionWriter writer)

Specified by:

copyAsValue in interface BaseReader

read

public void read(DenseUnionHolder holder)

Specified by:

read in interface BaseReader

read

public void read(int index,
 DenseUnionHolder holder)

Specified by:

read in interface BaseReader

copyAsValue

public void copyAsValue(DenseUnionWriter writer)

Specified by:

copyAsValue in interface BaseReader

copyAsValue

public void copyAsValue(BaseWriter.ListWriter writer)

Specified by:

copyAsValue in interface BaseReader.RepeatedListReader

copyAsValue

public void copyAsValue(BaseWriter.MapWriter writer)

Specified by:

copyAsValue in interface BaseReader.RepeatedMapReader