Package org.apache.drill.exec.vector.complex.impl

Class UnionReader

java.lang.Object

org.apache.drill.exec.vector.complex.impl.AbstractFieldReader

org.apache.drill.exec.vector.complex.impl.UnionReader

All Implemented Interfaces:

Iterable<String>, Positionable, BaseReader, BaseReader.DictReader, BaseReader.ListReader, BaseReader.MapReader, BaseReader.RepeatedListReader, BaseReader.RepeatedMapReader, BaseReader.ScalarReader, BigIntReader, BitReader, DateReader, Decimal18Reader, Decimal28DenseReader, Decimal28SparseReader, Decimal38DenseReader, Decimal38SparseReader, Decimal9Reader, FieldReader, Float4Reader, Float8Reader, IntervalDayReader, IntervalReader, IntervalYearReader, IntReader, RepeatedBigIntReader, RepeatedBitReader, RepeatedDateReader, RepeatedDecimal18Reader, RepeatedDecimal28DenseReader, RepeatedDecimal28SparseReader, RepeatedDecimal38DenseReader, RepeatedDecimal38SparseReader, RepeatedDecimal9Reader, RepeatedFloat4Reader, RepeatedFloat8Reader, RepeatedIntervalDayReader, RepeatedIntervalReader, RepeatedIntervalYearReader, RepeatedIntReader, RepeatedSmallIntReader, RepeatedTimeReader, RepeatedTimeStampReader, RepeatedTinyIntReader, RepeatedUInt1Reader, RepeatedUInt2Reader, RepeatedUInt4Reader, RepeatedUInt8Reader, RepeatedVar16CharReader, RepeatedVarBinaryReader, RepeatedVarCharReader, RepeatedVarDecimalReader, SmallIntReader, TimeReader, TimeStampReader, TinyIntReader, UInt1Reader, UInt2Reader, UInt4Reader, UInt8Reader, Var16CharReader, VarBinaryReader, VarCharReader, VarDecimalReader, UntypedReader

public class UnionReader
extends AbstractFieldReader

Nested Class Summary

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

BaseReader.ComplexReader, BaseReader.DictReader, BaseReader.ListReader, BaseReader.MapReader, BaseReader.RepeatedListReader, BaseReader.RepeatedMapReader, BaseReader.ScalarReader

Field Summary

Fields

Modifier and Type	Field	Description
final UnionVector	data

Constructor Summary

Constructors

Constructor	Description
UnionReader(UnionVector data)

Method Summary

Modifier and Type	Method	Description
void	copyAsValue(UnionWriter writer)
void	copyAsValue(BaseWriter.ListWriter writer)
void	copyAsValue(BigIntWriter writer)
void	copyAsValue(BitWriter writer)
void	copyAsValue(DateWriter writer)
void	copyAsValue(Float4Writer writer)
void	copyAsValue(Float8Writer writer)
void	copyAsValue(IntervalDayWriter writer)
void	copyAsValue(IntervalWriter writer)
void	copyAsValue(IntervalYearWriter writer)
void	copyAsValue(IntWriter writer)
void	copyAsValue(SmallIntWriter writer)
void	copyAsValue(TimeStampWriter writer)
void	copyAsValue(TimeWriter writer)
void	copyAsValue(TinyIntWriter writer)
void	copyAsValue(UInt1Writer writer)
void	copyAsValue(UInt2Writer writer)
void	copyAsValue(UInt4Writer writer)
void	copyAsValue(UInt8Writer writer)
void	copyAsValue(Var16CharWriter writer)
void	copyAsValue(VarBinaryWriter writer)
void	copyAsValue(VarCharWriter writer)
void	copyAsValue(VarDecimalWriter writer)
MaterializedField	getField()
TypeProtos.MajorType	getType()
String	getTypeString()	Returns String representation of the reader's type.
TypeProtos.MinorType	getVectorType()	Returns the type of the vector, not value.
boolean	isSet()	Returns true if the current value of the reader is not null
Iterator<String>	iterator()
boolean	next()
void	read(int index, UnionHolder holder)
void	read(NullableBigIntHolder holder)
void	read(NullableBitHolder holder)
void	read(NullableDateHolder holder)
void	read(NullableFloat4Holder holder)
void	read(NullableFloat8Holder holder)
void	read(NullableIntervalDayHolder holder)
void	read(NullableIntervalHolder holder)
void	read(NullableIntervalYearHolder holder)
void	read(NullableIntHolder holder)
void	read(NullableSmallIntHolder holder)
void	read(NullableTimeHolder holder)
void	read(NullableTimeStampHolder holder)
void	read(NullableTinyIntHolder holder)
void	read(NullableUInt1Holder holder)
void	read(NullableUInt2Holder holder)
void	read(NullableUInt4Holder holder)
void	read(NullableUInt8Holder holder)
void	read(NullableVar16CharHolder holder)
void	read(NullableVarBinaryHolder holder)
void	read(NullableVarCharHolder holder)
void	read(NullableVarDecimalHolder holder)
void	read(UnionHolder holder)
void	read(UntypedNullHolder holder)
BigDecimal	readBigDecimal()
Boolean	readBoolean()
Byte	readByte()
byte[]	readByteArray()
Character	readCharacter()
Double	readDouble()
FieldReader	reader()
FieldReader	reader(String name)
Float	readFloat()
Integer	readInteger()
LocalDate	readLocalDate()
LocalDateTime	readLocalDateTime()
LocalTime	readLocalTime()
Long	readLong()
Object	readObject()
org.joda.time.Period	readPeriod()
Short	readShort()
String	readString()
Text	readText()
void	reset()
void	setPosition(int index)

Methods inherited from class org.apache.drill.exec.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, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, copyAsValue, find, find, find, 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, readBoolean, readByte, readByteArray, readCharacter, readDouble, readFloat, readInteger, readLocalDate, readLocalDateTime, readLocalTime, readLong, readObject, readPeriod, readShort, readString, 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.drill.exec.vector.complex.reader.BaseReader

getField, reset

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.apache.drill.exec.vector.UntypedReader

read

Field Details

data

public final UnionVector data

Constructor Details

UnionReader

public UnionReader(UnionVector data)

Method Details

getType

public TypeProtos.MajorType getType()

Specified by:

getType in interface BaseReader

getVectorType

public TypeProtos.MinorType getVectorType()

Description copied from interface: BaseReader

Returns the type of the vector, not value. For all vectors, this is the same as the vector's getField().getType().getMinorType(). It is used to report the actual vector type in the getDrillType() function.

Specified by:

getVectorType in interface BaseReader

Overrides:

getVectorType 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 DateReader

Specified by:

isSet in interface Decimal18Reader

Specified by:

isSet in interface Decimal28DenseReader

Specified by:

isSet in interface Decimal28SparseReader

Specified by:

isSet in interface Decimal38DenseReader

Specified by:

isSet in interface Decimal38SparseReader

Specified by:

isSet in interface Decimal9Reader

Specified by:

isSet in interface Float4Reader

Specified by:

isSet in interface Float8Reader

Specified by:

isSet in interface IntervalDayReader

Specified by:

isSet in interface IntervalReader

Specified by:

isSet in interface IntervalYearReader

Specified by:

isSet in interface IntReader

Specified by:

isSet in interface RepeatedBigIntReader

Specified by:

isSet in interface RepeatedBitReader

Specified by:

isSet in interface RepeatedDateReader

Specified by:

isSet in interface RepeatedDecimal18Reader

Specified by:

isSet in interface RepeatedDecimal28DenseReader

Specified by:

isSet in interface RepeatedDecimal28SparseReader

Specified by:

isSet in interface RepeatedDecimal38DenseReader

Specified by:

isSet in interface RepeatedDecimal38SparseReader

Specified by:

isSet in interface RepeatedDecimal9Reader

Specified by:

isSet in interface RepeatedFloat4Reader

Specified by:

isSet in interface RepeatedFloat8Reader

Specified by:

isSet in interface RepeatedIntervalDayReader

Specified by:

isSet in interface RepeatedIntervalReader

Specified by:

isSet in interface RepeatedIntervalYearReader

Specified by:

isSet in interface RepeatedIntReader

Specified by:

isSet in interface RepeatedSmallIntReader

Specified by:

isSet in interface RepeatedTimeReader

Specified by:

isSet in interface RepeatedTimeStampReader

Specified by:

isSet in interface RepeatedTinyIntReader

Specified by:

isSet in interface RepeatedUInt1Reader

Specified by:

isSet in interface RepeatedUInt2Reader

Specified by:

isSet in interface RepeatedUInt4Reader

Specified by:

isSet in interface RepeatedUInt8Reader

Specified by:

isSet in interface RepeatedVar16CharReader

Specified by:

isSet in interface RepeatedVarBinaryReader

Specified by:

isSet in interface RepeatedVarCharReader

Specified by:

isSet in interface RepeatedVarDecimalReader

Specified by:

isSet in interface SmallIntReader

Specified by:

isSet in interface TimeReader

Specified by:

isSet in interface TimeStampReader

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 UntypedReader

Specified by:

isSet in interface Var16CharReader

Specified by:

isSet in interface VarBinaryReader

Specified by:

isSet in interface VarCharReader

Specified by:

isSet in interface VarDecimalReader

Overrides:

isSet in class AbstractFieldReader

Returns:

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

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>

copyAsValue

public void copyAsValue(UnionWriter writer)

Specified by:

copyAsValue in interface BaseReader

readObject

public Object readObject()

Specified by:

readObject in interface BigIntReader

Specified by:

readObject in interface BitReader

Specified by:

readObject in interface DateReader

Specified by:

readObject in interface Decimal18Reader

Specified by:

readObject in interface Decimal28DenseReader

Specified by:

readObject in interface Decimal28SparseReader

Specified by:

readObject in interface Decimal38DenseReader

Specified by:

readObject in interface Decimal38SparseReader

Specified by:

readObject in interface Decimal9Reader

Specified by:

readObject in interface Float4Reader

Specified by:

readObject in interface Float8Reader

Specified by:

readObject in interface IntervalDayReader

Specified by:

readObject in interface IntervalReader

Specified by:

readObject in interface IntervalYearReader

Specified by:

readObject in interface IntReader

Specified by:

readObject in interface SmallIntReader

Specified by:

readObject in interface TimeReader

Specified by:

readObject in interface TimeStampReader

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 Var16CharReader

Specified by:

readObject in interface VarBinaryReader

Specified by:

readObject in interface VarCharReader

Specified by:

readObject in interface VarDecimalReader

Overrides:

readObject in class AbstractFieldReader

readBigDecimal

public BigDecimal readBigDecimal()

Specified by:

readBigDecimal in interface Decimal18Reader

Specified by:

readBigDecimal in interface Decimal28DenseReader

Specified by:

readBigDecimal in interface Decimal28SparseReader

Specified by:

readBigDecimal in interface Decimal38DenseReader

Specified by:

readBigDecimal in interface Decimal38SparseReader

Specified by:

readBigDecimal in interface Decimal9Reader

Specified by:

readBigDecimal in interface VarDecimalReader

Overrides:

readBigDecimal in class AbstractFieldReader

readInteger

public Integer readInteger()

Specified by:

readInteger in interface IntReader

Specified by:

readInteger in interface UInt4Reader

Overrides:

readInteger in class AbstractFieldReader

readLong

public Long readLong()

Specified by:

readLong in interface BigIntReader

Specified by:

readLong in interface UInt8Reader

Overrides:

readLong in class AbstractFieldReader

readBoolean

public Boolean readBoolean()

Specified by:

readBoolean in interface BitReader

Overrides:

readBoolean in class AbstractFieldReader

readCharacter

public Character readCharacter()

Specified by:

readCharacter in interface UInt2Reader

Overrides:

readCharacter in class AbstractFieldReader

readLocalDate

public LocalDate readLocalDate()

Specified by:

readLocalDate in interface DateReader

Overrides:

readLocalDate in class AbstractFieldReader

readLocalTime

public LocalTime readLocalTime()

Specified by:

readLocalTime in interface TimeReader

Overrides:

readLocalTime in class AbstractFieldReader

readLocalDateTime

public LocalDateTime readLocalDateTime()

Specified by:

readLocalDateTime in interface TimeStampReader

Overrides:

readLocalDateTime in class AbstractFieldReader

readPeriod

public org.joda.time.Period readPeriod()

Specified by:

readPeriod in interface IntervalDayReader

Specified by:

readPeriod in interface IntervalReader

Specified by:

readPeriod in interface IntervalYearReader

Overrides:

readPeriod in class AbstractFieldReader

readDouble

public Double readDouble()

Specified by:

readDouble in interface Float8Reader

Overrides:

readDouble in class AbstractFieldReader

readFloat

public Float readFloat()

Specified by:

readFloat in interface Float4Reader

Overrides:

readFloat in class AbstractFieldReader

readText

public Text readText()

Specified by:

readText in interface VarCharReader

Overrides:

readText in class AbstractFieldReader

readString

public String readString()

Specified by:

readString in interface Var16CharReader

Overrides:

readString in class AbstractFieldReader

readByte

public Byte readByte()

Specified by:

readByte in interface TinyIntReader

Specified by:

readByte in interface UInt1Reader

Overrides:

readByte in class AbstractFieldReader

readShort

public Short readShort()

Specified by:

readShort in interface SmallIntReader

Overrides:

readShort in class AbstractFieldReader

readByteArray

public byte[] readByteArray()

Specified by:

readByteArray in interface VarBinaryReader

Overrides:

readByteArray in class AbstractFieldReader

read

public void read(NullableTinyIntHolder holder)

Specified by:

read in interface TinyIntReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(TinyIntWriter writer)

Specified by:

copyAsValue in interface RepeatedTinyIntReader

Specified by:

copyAsValue in interface TinyIntReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableUInt1Holder holder)

Specified by:

read in interface UInt1Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(UInt1Writer writer)

Specified by:

copyAsValue in interface RepeatedUInt1Reader

Specified by:

copyAsValue in interface UInt1Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableUInt2Holder holder)

Specified by:

read in interface UInt2Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(UInt2Writer writer)

Specified by:

copyAsValue in interface RepeatedUInt2Reader

Specified by:

copyAsValue in interface UInt2Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableSmallIntHolder holder)

Specified by:

read in interface SmallIntReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(SmallIntWriter writer)

Specified by:

copyAsValue in interface RepeatedSmallIntReader

Specified by:

copyAsValue in interface SmallIntReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableIntHolder holder)

Specified by:

read in interface IntReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(IntWriter writer)

Specified by:

copyAsValue in interface IntReader

Specified by:

copyAsValue in interface RepeatedIntReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableUInt4Holder holder)

Specified by:

read in interface UInt4Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(UInt4Writer writer)

Specified by:

copyAsValue in interface RepeatedUInt4Reader

Specified by:

copyAsValue in interface UInt4Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableFloat4Holder holder)

Specified by:

read in interface Float4Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(Float4Writer writer)

Specified by:

copyAsValue in interface Float4Reader

Specified by:

copyAsValue in interface RepeatedFloat4Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableTimeHolder holder)

Specified by:

read in interface TimeReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(TimeWriter writer)

Specified by:

copyAsValue in interface RepeatedTimeReader

Specified by:

copyAsValue in interface TimeReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableIntervalYearHolder holder)

Specified by:

read in interface IntervalYearReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(IntervalYearWriter writer)

Specified by:

copyAsValue in interface IntervalYearReader

Specified by:

copyAsValue in interface RepeatedIntervalYearReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableBigIntHolder holder)

Specified by:

read in interface BigIntReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(BigIntWriter writer)

Specified by:

copyAsValue in interface BigIntReader

Specified by:

copyAsValue in interface RepeatedBigIntReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableUInt8Holder holder)

Specified by:

read in interface UInt8Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(UInt8Writer writer)

Specified by:

copyAsValue in interface RepeatedUInt8Reader

Specified by:

copyAsValue in interface UInt8Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableFloat8Holder holder)

Specified by:

read in interface Float8Reader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(Float8Writer writer)

Specified by:

copyAsValue in interface Float8Reader

Specified by:

copyAsValue in interface RepeatedFloat8Reader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableDateHolder holder)

Specified by:

read in interface DateReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(DateWriter writer)

Specified by:

copyAsValue in interface DateReader

Specified by:

copyAsValue in interface RepeatedDateReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableTimeStampHolder holder)

Specified by:

read in interface TimeStampReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(TimeStampWriter writer)

Specified by:

copyAsValue in interface RepeatedTimeStampReader

Specified by:

copyAsValue in interface TimeStampReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableIntervalDayHolder holder)

Specified by:

read in interface IntervalDayReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(IntervalDayWriter writer)

Specified by:

copyAsValue in interface IntervalDayReader

Specified by:

copyAsValue in interface RepeatedIntervalDayReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableIntervalHolder holder)

Specified by:

read in interface IntervalReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(IntervalWriter writer)

Specified by:

copyAsValue in interface IntervalReader

Specified by:

copyAsValue in interface RepeatedIntervalReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableVarBinaryHolder holder)

Specified by:

read in interface VarBinaryReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(VarBinaryWriter writer)

Specified by:

copyAsValue in interface RepeatedVarBinaryReader

Specified by:

copyAsValue in interface VarBinaryReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableVarCharHolder holder)

Specified by:

read in interface VarCharReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(VarCharWriter writer)

Specified by:

copyAsValue in interface RepeatedVarCharReader

Specified by:

copyAsValue in interface VarCharReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableVar16CharHolder holder)

Specified by:

read in interface Var16CharReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(Var16CharWriter writer)

Specified by:

copyAsValue in interface RepeatedVar16CharReader

Specified by:

copyAsValue in interface Var16CharReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableVarDecimalHolder holder)

Specified by:

read in interface VarDecimalReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(VarDecimalWriter writer)

Specified by:

copyAsValue in interface RepeatedVarDecimalReader

Specified by:

copyAsValue in interface VarDecimalReader

Overrides:

copyAsValue in class AbstractFieldReader

read

public void read(NullableBitHolder holder)

Specified by:

read in interface BitReader

Overrides:

read in class AbstractFieldReader

copyAsValue

public void copyAsValue(BitWriter writer)

Specified by:

copyAsValue in interface BitReader

Specified by:

copyAsValue in interface RepeatedBitReader

Overrides:

copyAsValue in class AbstractFieldReader

copyAsValue

public void copyAsValue(BaseWriter.ListWriter writer)

Specified by:

copyAsValue in interface BaseReader.RepeatedListReader

setPosition

public void setPosition(int index)

Specified by:

setPosition in interface Positionable

reader

public FieldReader reader(String name)

Specified by:

reader in interface BaseReader.MapReader

Overrides:

reader in class AbstractFieldReader

reader

public FieldReader reader()

Specified by:

reader in interface BaseReader.ListReader

Overrides:

reader in class AbstractFieldReader

next

public boolean next()

Specified by:

next in interface BaseReader.RepeatedListReader

Specified by:

next in interface BaseReader.RepeatedMapReader

getTypeString

public String getTypeString()

Description copied from interface: BaseReader

Returns String representation of the reader's type. In case if BaseReader.getType() is primitive, the method is equivalent to

invalid @link

{@link #getType().getMinorType().name()

}. If the reader has minor type equal to TypeProtos.MinorType.DICT, DICT<keyMinorType,valueMinorType>, with keyMinorType and valueMinorType being key's and value's minor types respectively, will be returned. Used in typeOf UDF.

Specified by:

getTypeString in interface BaseReader

Returns:

String representation of reader's type.

reset

public void reset()

Specified by:

reset in interface BaseReader

getField

public MaterializedField getField()

Specified by:

getField in interface BaseReader

read

public void read(UntypedNullHolder holder)

Specified by:

read in interface UntypedReader