com.facebook.presto.orc

Class OrcReader

java.lang.Object

com.facebook.presto.orc.OrcReader

public class OrcReader
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	BATCH_SIZE_GROWTH_FACTOR
static int	INITIAL_BATCH_SIZE
static int	MAX_BATCH_SIZE

Constructor Summary

Constructors

Constructor and Description
OrcReader(OrcDataSource orcDataSource, OrcEncoding orcEncoding, io.airlift.units.DataSize maxMergeDistance, io.airlift.units.DataSize maxReadSize, io.airlift.units.DataSize tinyStripeThreshold, io.airlift.units.DataSize maxBlockSize)

Method Summary

Modifier and Type	Method and Description
OrcRecordReader	createRecordReader(Map<Integer,Type> includedColumns, OrcPredicate predicate, org.joda.time.DateTimeZone hiveStorageTimeZone, AggregatedMemoryContext systemMemoryUsage, int initialBatchSize)
OrcRecordReader	createRecordReader(Map<Integer,Type> includedColumns, OrcPredicate predicate, long offset, long length, org.joda.time.DateTimeZone hiveStorageTimeZone, AggregatedMemoryContext systemMemoryUsage, int initialBatchSize)
int	getBufferSize()
List<String>	getColumnNames()
CompressionKind	getCompressionKind()
Footer	getFooter()
Metadata	getMetadata()

Methods inherited from class java.lang.Object

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

Field Detail

MAX_BATCH_SIZE

public static final int MAX_BATCH_SIZE

See Also:

Constant Field Values

INITIAL_BATCH_SIZE

public static final int INITIAL_BATCH_SIZE

See Also:

Constant Field Values

BATCH_SIZE_GROWTH_FACTOR

public static final int BATCH_SIZE_GROWTH_FACTOR

See Also:

Constant Field Values

Constructor Detail

OrcReader

public OrcReader(OrcDataSource orcDataSource,
                 OrcEncoding orcEncoding,
                 io.airlift.units.DataSize maxMergeDistance,
                 io.airlift.units.DataSize maxReadSize,
                 io.airlift.units.DataSize tinyStripeThreshold,
                 io.airlift.units.DataSize maxBlockSize)
          throws IOException

Throws:

IOException

Method Detail

getColumnNames

public List<String> getColumnNames()

getFooter

public Footer getFooter()

getMetadata

public Metadata getMetadata()

getBufferSize

public int getBufferSize()

getCompressionKind

public CompressionKind getCompressionKind()

createRecordReader

public OrcRecordReader createRecordReader(Map<Integer,Type> includedColumns,
                                          OrcPredicate predicate,
                                          org.joda.time.DateTimeZone hiveStorageTimeZone,
                                          AggregatedMemoryContext systemMemoryUsage,
                                          int initialBatchSize)

createRecordReader

public OrcRecordReader createRecordReader(Map<Integer,Type> includedColumns,
                                          OrcPredicate predicate,
                                          long offset,
                                          long length,
                                          org.joda.time.DateTimeZone hiveStorageTimeZone,
                                          AggregatedMemoryContext systemMemoryUsage,
                                          int initialBatchSize)