Class LongColumnReader

java.lang.Object

io.trino.orc.reader.LongColumnReader

All Implemented Interfaces:

ColumnReader

Direct Known Subclasses:

TimeColumnReader

public class LongColumnReader
extends Object
implements ColumnReader

Constructor Summary

Constructors

Constructor	Description
LongColumnReader(Type type, OrcColumn column, LocalMemoryContext memoryContext)

Method Summary

Modifier and Type	Method	Description
void	close()
long	getRetainedSizeInBytes()
protected void	maybeTransformValues(long[] values, int nextBatchSize)
void	prepareNextRead(int batchSize)
Block	readBlock()
void	startRowGroup(InputStreamSources dataStreamSources)
void	startStripe(ZoneId fileTimeZone, InputStreamSources dictionaryStreamSources, ColumnMetadata<ColumnEncoding> encoding)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

LongColumnReader

public LongColumnReader(Type type,
 OrcColumn column,
 LocalMemoryContext memoryContext)
                 throws OrcCorruptionException

Throws:

OrcCorruptionException

Method Details

prepareNextRead

public void prepareNextRead(int batchSize)

Specified by:

prepareNextRead in interface ColumnReader

readBlock

public Block readBlock()
                throws IOException

Specified by:

readBlock in interface ColumnReader

Throws:

IOException

maybeTransformValues

protected void maybeTransformValues(long[] values,
 int nextBatchSize)

startStripe

public void startStripe(ZoneId fileTimeZone,
 InputStreamSources dictionaryStreamSources,
 ColumnMetadata<ColumnEncoding> encoding)

Specified by:

startStripe in interface ColumnReader

startRowGroup

public void startRowGroup(InputStreamSources dataStreamSources)

Specified by:

startRowGroup in interface ColumnReader

toString

public String toString()

Overrides:

toString in class Object

close

public void close()

Specified by:

close in interface ColumnReader

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

Specified by:

getRetainedSizeInBytes in interface ColumnReader