com.facebook.presto.orc.reader

Class MapDirectBatchStreamReader

java.lang.Object

com.facebook.presto.orc.reader.MapDirectBatchStreamReader

All Implemented Interfaces:

BatchStreamReader, StreamReader

public class MapDirectBatchStreamReader
extends Object
implements BatchStreamReader

Constructor Summary

Constructors

Constructor and Description
MapDirectBatchStreamReader(Type type, StreamDescriptor streamDescriptor, org.joda.time.DateTimeZone hiveStorageTimeZone, OrcAggregatedMemoryContext systemMemoryContext)

Method Summary

Modifier and Type	Method and Description
void	close()
long	getRetainedSizeInBytes()
void	prepareNextRead(int batchSize)
Block	readBlock()
void	startRowGroup(InputStreamSources dataStreamSources)
void	startStripe(InputStreamSources dictionaryStreamSources, List<ColumnEncoding> encoding)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MapDirectBatchStreamReader

public MapDirectBatchStreamReader(Type type,
                                  StreamDescriptor streamDescriptor,
                                  org.joda.time.DateTimeZone hiveStorageTimeZone,
                                  OrcAggregatedMemoryContext systemMemoryContext)
                           throws OrcCorruptionException

Throws:

OrcCorruptionException

Method Detail

prepareNextRead

public void prepareNextRead(int batchSize)

Specified by:

prepareNextRead in interface BatchStreamReader

readBlock

public Block readBlock()
                throws IOException

Specified by:

readBlock in interface BatchStreamReader

Throws:

IOException

startStripe

public void startStripe(InputStreamSources dictionaryStreamSources,
                        List<ColumnEncoding> encoding)
                 throws IOException

Specified by:

startStripe in interface StreamReader

Throws:

IOException

startRowGroup

public void startRowGroup(InputStreamSources dataStreamSources)
                   throws IOException

Specified by:

startRowGroup in interface StreamReader

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

close

public void close()

Specified by:

close in interface StreamReader

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

Specified by:

getRetainedSizeInBytes in interface StreamReader