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

java.lang.Object
  java.io.RandomAccessFile
      org.apache.cassandra.io.compress.CompressionMetadata.Writer

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.io.DataOutput

Enclosing class:

CompressionMetadata

public static class CompressionMetadata.Writer
extends java.io.RandomAccessFile

Method Summary

long	chunkOffsetBy(int chunkIndex) Get a chunk offset by it's index.
void	finalizeHeader(long dataLength, int chunks)
static CompressionMetadata.Writer	open(java.lang.String path)
void	resetAndTruncate(int chunkIndex) Reset the writer so that the next chunk offset written will be the one of chunkIndex.
void	writeHeader(CompressionParameters parameters)

Methods inherited from class java.io.RandomAccessFile

close, getChannel, getFD, getFilePointer, length, read, read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, seek, setLength, skipBytes, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

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(java.lang.String path)

writeHeader

public void writeHeader(CompressionParameters parameters)

finalizeHeader

public void finalizeHeader(long dataLength,
                           int chunks)

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.