org.apache.cassandra.io.compress

Class CompressionMetadata.Writer

java.lang.Object

org.apache.cassandra.io.compress.CompressionMetadata.Writer

Enclosing class:

CompressionMetadata

public static class CompressionMetadata.Writer
extends java.lang.Object

Method Summary

Methods

Modifier and Type	Method and Description
void	addOffset(long offset)
long	chunkOffsetBy(int chunkIndex) Get a chunk offset by it's index.
void	close(long dataLength, int chunks)
static CompressionMetadata.Writer	open(CompressionParameters parameters, java.lang.String path)
CompressionMetadata	openAfterClose(long dataLength, long compressedLength)
CompressionMetadata	openEarly(long dataLength, long compressedLength)
void	resetAndTruncate(int chunkIndex) Reset the writer so that the next chunk offset written will be the one of chunkIndex.

Methods inherited from class java.lang.Object

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

Method Detail

open

public static CompressionMetadata.Writer open(CompressionParameters parameters,
                              java.lang.String path)

addOffset

public void addOffset(long offset)

openEarly

public CompressionMetadata openEarly(long dataLength,
                            long compressedLength)

openAfterClose

public CompressionMetadata openAfterClose(long dataLength,
                                 long compressedLength)

chunkOffsetBy

public long chunkOffsetBy(int chunkIndex)

Get a chunk offset by it's index.

Parameters:

chunkIndex - Index of the chunk.

Returns:

offset of the chunk in the compressed file.

resetAndTruncate

public void resetAndTruncate(int chunkIndex)

Reset the writer so that the next chunk offset written will be the one of chunkIndex.

close

public void close(long dataLength,
         int chunks)
           throws java.io.IOException

Throws:

java.io.IOException