com.facebook.presto.orc.reader

Class ByteStreamReader

java.lang.Object

com.facebook.presto.orc.reader.ByteStreamReader

All Implemented Interfaces:

StreamReader

public class ByteStreamReader
extends Object
implements StreamReader

Constructor Summary

Constructors

Constructor and Description
ByteStreamReader(StreamDescriptor streamDescriptor, LocalMemoryContext systemMemoryContext)

Method Summary

Modifier and Type	Method and Description
void	close()
long	getRetainedSizeInBytes()
void	prepareNextRead(int batchSize)
Block	readBlock(Type type)
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

ByteStreamReader

public ByteStreamReader(StreamDescriptor streamDescriptor,
                        LocalMemoryContext systemMemoryContext)

Method Detail

prepareNextRead

public void prepareNextRead(int batchSize)

Specified by:

prepareNextRead in interface StreamReader

readBlock

public Block readBlock(Type type)
                throws IOException

Specified by:

readBlock in interface StreamReader

Throws:

IOException

startStripe

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

Specified by:

startStripe in interface StreamReader

startRowGroup

public void startRowGroup(InputStreamSources dataStreamSources)

Specified by:

startRowGroup in interface StreamReader

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