Package io.trino.plugin.hive.parquet

Class ParquetPageSource

java.lang.Object

io.trino.plugin.hive.parquet.ParquetPageSource

All Implemented Interfaces:

ConnectorPageSource, Closeable, AutoCloseable

public class ParquetPageSource
extends Object
implements ConnectorPageSource

Field Summary

Fields inherited from interface io.trino.spi.connector.ConnectorPageSource

NOT_BLOCKED

Constructor Summary

Constructors

Constructor	Description
ParquetPageSource(ParquetReader parquetReader, List<Type> types, List<Boolean> rowIndexLocations, List<Optional<Field>> fields)
ParquetPageSource(ParquetReader parquetReader, List<Type> types, List<Optional<Field>> fields)

Method Summary

Modifier and Type	Method	Description
void	close()
long	getCompletedBytes()
OptionalLong	getCompletedPositions()
Page	getNextPage()
long	getReadTimeNanos()
long	getSystemMemoryUsage()
boolean	isFinished()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.trino.spi.connector.ConnectorPageSource

getMetrics, isBlocked

Constructor Detail

ParquetPageSource

public ParquetPageSource(ParquetReader parquetReader,
                         List<Type> types,
                         List<Optional<Field>> fields)

ParquetPageSource

public ParquetPageSource(ParquetReader parquetReader,
                         List<Type> types,
                         List<Boolean> rowIndexLocations,
                         List<Optional<Field>> fields)

Parameters:

types - Column types

rowIndexLocations - Whether each column should be populated with the indices of its rows

fields - List of field descriptions. Empty optionals will result in columns populated with NULL

Method Detail

getCompletedBytes

public long getCompletedBytes()

Specified by:

getCompletedBytes in interface ConnectorPageSource

getCompletedPositions

public OptionalLong getCompletedPositions()

Specified by:

getCompletedPositions in interface ConnectorPageSource

getReadTimeNanos

public long getReadTimeNanos()

Specified by:

getReadTimeNanos in interface ConnectorPageSource

isFinished

public boolean isFinished()

Specified by:

isFinished in interface ConnectorPageSource

getSystemMemoryUsage

public long getSystemMemoryUsage()

Specified by:

getSystemMemoryUsage in interface ConnectorPageSource

getNextPage

public Page getNextPage()

Specified by:

getNextPage in interface ConnectorPageSource

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface ConnectorPageSource