Package org.apache.orc.impl

Class OrcTail

java.lang.Object

org.apache.orc.impl.OrcTail

public final class OrcTail
extends Object

Constructor Summary

Constructors

Constructor	Description
OrcTail(OrcProto.FileTail fileTail, ByteBuffer serializedTail)
OrcTail(OrcProto.FileTail fileTail, ByteBuffer serializedTail, long fileModificationTime)
OrcTail(OrcProto.FileTail fileTail, BufferChunk serializedTail, long fileModificationTime)
OrcTail(OrcProto.FileTail fileTail, BufferChunk serializedTail, long fileModificationTime, Reader reader)

Method Summary

Modifier and Type	Method	Description
int	getCompressionBufferSize()
CompressionKind	getCompressionKind()
long	getFileLength()	Get the position of the end of the file.
long	getFileModificationTime()
OrcProto.FileTail	getFileTail()
OrcProto.Footer	getFooter()
long	getMetadataOffset()	Get the file offset of the metadata section of footer.
int	getMetadataSize()
OrcProto.FileTail	getMinimalFileTail()
OrcProto.PostScript	getPostScript()
TypeDescription	getSchema()
ByteBuffer	getSerializedTail()
List<StripeInformation>	getStripes()
List<StripeStatistics>	getStripeStatistics()	Deprecated. the user should use Reader.getStripeStatistics instead.
long	getStripeStatisticsOffset()	Get the file offset of the stripe statistics.
BufferChunk	getTailBuffer()	Gets the buffer chunks that correspond to the stripe statistics, file tail, and post script.
List<OrcProto.Type>	getTypes()
OrcFile.WriterVersion	getWriterVersion()

Methods inherited from class java.lang.Object

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

Constructor Details

OrcTail

public OrcTail(OrcProto.FileTail fileTail,
 ByteBuffer serializedTail)
        throws IOException

Throws:

IOException

OrcTail

public OrcTail(OrcProto.FileTail fileTail,
 ByteBuffer serializedTail,
 long fileModificationTime)
        throws IOException

Throws:

IOException

OrcTail

public OrcTail(OrcProto.FileTail fileTail,
 BufferChunk serializedTail,
 long fileModificationTime)
        throws IOException

Throws:

IOException

OrcTail

public OrcTail(OrcProto.FileTail fileTail,
 BufferChunk serializedTail,
 long fileModificationTime,
 Reader reader)
        throws IOException

Throws:

IOException

Method Details

getSerializedTail

public ByteBuffer getSerializedTail()

getTailBuffer

public BufferChunk getTailBuffer()

Gets the buffer chunks that correspond to the stripe statistics, file tail, and post script.

Returns:

the shared buffers with the contents of the file tail

getFileModificationTime

public long getFileModificationTime()

getFooter

public OrcProto.Footer getFooter()

getPostScript

public OrcProto.PostScript getPostScript()

getWriterVersion

public OrcFile.WriterVersion getWriterVersion()

getStripes

public List<StripeInformation> getStripes()

getCompressionKind

public CompressionKind getCompressionKind()

getCompressionBufferSize

public int getCompressionBufferSize()

getMetadataSize

public int getMetadataSize()

getTypes

public List<OrcProto.Type> getTypes()

getSchema

public TypeDescription getSchema()

getFileTail

public OrcProto.FileTail getFileTail()

getMetadataOffset

public long getMetadataOffset()

Get the file offset of the metadata section of footer.

Returns:

the byte offset of the start of the metadata

getStripeStatisticsOffset

public long getStripeStatisticsOffset()

Get the file offset of the stripe statistics.

Returns:

the byte offset of the start of the stripe statistics

getFileLength

public long getFileLength()

Get the position of the end of the file.

Returns:

the byte length of the file

getMinimalFileTail

public OrcProto.FileTail getMinimalFileTail()

getStripeStatistics

public List<StripeStatistics> getStripeStatistics()
                                           throws IOException

Deprecated.

the user should use Reader.getStripeStatistics instead.

Get the stripe statistics from the file tail. This code is for compatibility with ORC 1.5.

Returns:

the stripe statistics

Throws:

IOException