org.apache.hadoop.hive.ql.io.orc

Class RecordReaderImpl

java.lang.Object

org.apache.orc.impl.RecordReaderImpl

org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.orc.RecordReader

public class RecordReaderImpl
extends org.apache.orc.impl.RecordReaderImpl
implements RecordReader

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.orc.impl.RecordReaderImpl

org.apache.orc.impl.RecordReaderImpl.PositionProviderImpl, org.apache.orc.impl.RecordReaderImpl.SargApplier, org.apache.orc.impl.RecordReaderImpl.ZeroPositionProvider

Field Summary

Fields inherited from class org.apache.orc.impl.RecordReaderImpl

EMPTY_COLUMN_STATISTICS, path, schema

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RecordReaderImpl(ReaderImpl fileReader, org.apache.orc.Reader.Options options, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	close()
VectorizedRowBatch	createRowBatch(boolean useDecimal64)
long	getRowNumber()
boolean	hasNext() Does the reader have more rows available.
Object	next(Object previous) Read the next row.
boolean	nextBatch(VectorizedRowBatch theirBatch)
void	seekToRow(long row)

Methods inherited from class org.apache.orc.impl.RecordReaderImpl

encodeTranslatedSargColumn, evaluatePredicate, evaluatePredicate, getCompressionCodec, getMaxDiskRangeChunkLimit, getProgress, mapSargColumnsToOrcInternalColIdx, mapTranslatedSargColumns, pickRowGroups, readRowIndex, readStripeFooter

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.orc.RecordReader

getProgress

Constructor Detail

RecordReaderImpl

protected RecordReaderImpl(ReaderImpl fileReader,
                           org.apache.orc.Reader.Options options,
                           org.apache.hadoop.conf.Configuration conf)
                    throws IOException

Throws:

IOException

Method Detail

createRowBatch

public VectorizedRowBatch createRowBatch(boolean useDecimal64)

getRowNumber

public long getRowNumber()

Specified by:

getRowNumber in interface org.apache.orc.RecordReader

Overrides:

getRowNumber in class org.apache.orc.impl.RecordReaderImpl

hasNext

public boolean hasNext()
                throws IOException

Description copied from interface: RecordReader

Does the reader have more rows available.

Returns:

true if there are more rows

Throws:

IOException

seekToRow

public void seekToRow(long row)
               throws IOException

Specified by:

seekToRow in interface org.apache.orc.RecordReader

Overrides:

seekToRow in class org.apache.orc.impl.RecordReaderImpl

Throws:

IOException

next

public Object next(Object previous)
            throws IOException

Description copied from interface: RecordReader

Read the next row.

Parameters:

previous - a row object that can be reused by the reader

Returns:

the row that was read

Throws:

IOException

nextBatch

public boolean nextBatch(VectorizedRowBatch theirBatch)
                  throws IOException

Specified by:

nextBatch in interface org.apache.orc.RecordReader

Overrides:

nextBatch in class org.apache.orc.impl.RecordReaderImpl

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface org.apache.orc.RecordReader

Overrides:

close in class org.apache.orc.impl.RecordReaderImpl

Throws:

IOException