Package io.trino.plugin.hive

Class HivePageSource

java.lang.Object

io.trino.plugin.hive.HivePageSource

All Implemented Interfaces:

ConnectorPageSource, Closeable, AutoCloseable

public class HivePageSource
extends Object
implements ConnectorPageSource

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	HivePageSource.BucketAdapter
static class	HivePageSource.BucketValidator

Field Summary

Fields

Modifier and Type	Field	Description
static final int	BUCKET_CHANNEL
static final int	ORIGINAL_TRANSACTION_CHANNEL
static final int	ROW_ID_CHANNEL

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

NOT_BLOCKED

Constructor Summary

Constructors

Constructor	Description
HivePageSource(List<HivePageSourceProvider.ColumnMapping> columnMappings, Optional<HivePageSourceProvider.BucketAdaptation> bucketAdaptation, Optional<HivePageSource.BucketValidator> bucketValidator, Optional<ReaderProjectionsAdapter> projectionsAdapter, TypeManager typeManager, HiveTimestampPrecision timestampPrecision, ConnectorPageSource delegate)

Method Summary

Modifier and Type	Method	Description
void	close()
static Optional<Function<Block,Block>>	createCoercer(TypeManager typeManager, HiveType fromHiveType, HiveType toHiveType, HiveTimestampPrecision timestampPrecision)
long	getCompletedBytes()
OptionalLong	getCompletedPositions()
ConnectorPageSource	getDelegate()
long	getMemoryUsage()
Metrics	getMetrics()
Page	getNextPage()
ConnectorPageSource	getPageSource()
long	getReadTimeNanos()
boolean	isFinished()
static boolean	narrowerThan(CharType first, CharType second)
static boolean	narrowerThan(VarcharType first, VarcharType second)
String	toString()

Methods inherited from class java.lang.Object

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

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

isBlocked

Field Details

ORIGINAL_TRANSACTION_CHANNEL

public static final int ORIGINAL_TRANSACTION_CHANNEL

See Also:

• Constant Field Values

BUCKET_CHANNEL

public static final int BUCKET_CHANNEL

See Also:

• Constant Field Values

ROW_ID_CHANNEL

public static final int ROW_ID_CHANNEL

See Also:

• Constant Field Values

Constructor Details

HivePageSource

public HivePageSource(List<HivePageSourceProvider.ColumnMapping> columnMappings,
 Optional<HivePageSourceProvider.BucketAdaptation> bucketAdaptation,
 Optional<HivePageSource.BucketValidator> bucketValidator,
 Optional<ReaderProjectionsAdapter> projectionsAdapter,
 TypeManager typeManager,
 HiveTimestampPrecision timestampPrecision,
 ConnectorPageSource delegate)

Method Details

getDelegate

public ConnectorPageSource getDelegate()

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

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

toString

public String toString()

Overrides:

toString in class Object

getMemoryUsage

public long getMemoryUsage()

Specified by:

getMemoryUsage in interface ConnectorPageSource

getMetrics

public Metrics getMetrics()

Specified by:

getMetrics in interface ConnectorPageSource

getPageSource

public ConnectorPageSource getPageSource()

createCoercer

public static Optional<Function<Block,Block>> createCoercer(TypeManager typeManager,
 HiveType fromHiveType,
 HiveType toHiveType,
 HiveTimestampPrecision timestampPrecision)

narrowerThan

public static boolean narrowerThan(VarcharType first,
 VarcharType second)

narrowerThan

public static boolean narrowerThan(CharType first,
 CharType second)