Package io.trino.parquet.reader.flat

Class FlatColumnReader<BufferType>

java.lang.Object

io.trino.parquet.reader.AbstractColumnReader<BufferType>

io.trino.parquet.reader.flat.FlatColumnReader<BufferType>

All Implemented Interfaces:

ColumnReader

public class FlatColumnReader<BufferType>
extends AbstractColumnReader<BufferType>

Field Summary

Fields inherited from class io.trino.parquet.reader.AbstractColumnReader

columnAdapter, decodersProvider, dictionaryDecoder, field, pageReader, rowRanges

Constructor Summary

Constructors

Constructor	Description
FlatColumnReader(PrimitiveField field, ValueDecoder.ValueDecodersProvider<BufferType> decodersProvider, FlatDefinitionLevelDecoder.DefinitionLevelDecoderProvider definitionLevelDecoderProvider, DictionaryDecoder.DictionaryDecoderProvider<BufferType> dictionaryDecoderProvider, ColumnAdapter<BufferType> columnAdapter, LocalMemoryContext memoryContext)

Method Summary

Modifier and Type	Method	Description
boolean	hasPageReader()
protected boolean	isNonNull()
void	prepareNextRead(int batchSize)
ColumnChunk	readPrimitive()

Methods inherited from class io.trino.parquet.reader.AbstractColumnReader

createDictionaryBlock, createValueDecoder, produceDictionaryBlock, setPageReader, throwEndOfBatchException, unpackDictionaryNullId

Methods inherited from class java.lang.Object

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

Constructor Details

FlatColumnReader

public FlatColumnReader(PrimitiveField field,
 ValueDecoder.ValueDecodersProvider<BufferType> decodersProvider,
 FlatDefinitionLevelDecoder.DefinitionLevelDecoderProvider definitionLevelDecoderProvider,
 DictionaryDecoder.DictionaryDecoderProvider<BufferType> dictionaryDecoderProvider,
 ColumnAdapter<BufferType> columnAdapter,
 LocalMemoryContext memoryContext)

Method Details

hasPageReader

public boolean hasPageReader()

isNonNull

protected boolean isNonNull()

Specified by:

isNonNull in class AbstractColumnReader<BufferType>

readPrimitive

public ColumnChunk readPrimitive()

prepareNextRead

public void prepareNextRead(int batchSize)