Package io.trino.parquet.reader

Class PrimitiveColumnReader

java.lang.Object

io.trino.parquet.reader.PrimitiveColumnReader

All Implemented Interfaces:

ColumnReader

Direct Known Subclasses:

BinaryColumnReader, BooleanColumnReader, DoubleColumnReader, FloatColumnReader, Int64TimestampMillisColumnReader, Int64TimestampNanosColumnReader, IntColumnReader, LongColumnReader, LongDecimalColumnReader, ShortDecimalColumnReader, TimeMicrosColumnReader, TimestampColumnReader, TimestampMicrosColumnReader, UuidColumnReader

public abstract class PrimitiveColumnReader
extends Object
implements ColumnReader

Field Summary

Fields

Modifier and Type	Field	Description
protected int	definitionLevel
protected final PrimitiveField	field
protected int	repetitionLevel
protected org.apache.parquet.column.values.ValuesReader	valuesReader

Constructor Summary

Constructors

Constructor	Description
PrimitiveColumnReader(PrimitiveField field)

Method Summary

Modifier and Type	Method	Description
boolean	hasPageReader()
protected boolean	isValueNull()
void	prepareNextRead(int batchSize)
ColumnChunk	readPrimitive()
protected abstract void	readValue(BlockBuilder blockBuilder, Type type)
void	setPageReader(PageReader pageReader, Optional<FilteredRowRanges> rowRanges)

Methods inherited from class java.lang.Object

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

Field Details

field

protected final PrimitiveField field

definitionLevel

protected int definitionLevel

repetitionLevel

protected int repetitionLevel

valuesReader

protected org.apache.parquet.column.values.ValuesReader valuesReader

Constructor Details

PrimitiveColumnReader

public PrimitiveColumnReader(PrimitiveField field)

Method Details

readValue

protected abstract void readValue(BlockBuilder blockBuilder,
 Type type)

isValueNull

protected boolean isValueNull()

hasPageReader

public boolean hasPageReader()

Specified by:

hasPageReader in interface ColumnReader

setPageReader

public void setPageReader(PageReader pageReader,
 Optional<FilteredRowRanges> rowRanges)

Specified by:

setPageReader in interface ColumnReader

prepareNextRead

public void prepareNextRead(int batchSize)

Specified by:

prepareNextRead in interface ColumnReader

readPrimitive

public ColumnChunk readPrimitive()

Specified by:

readPrimitive in interface ColumnReader