org.apache.cassandra.io.util
Class SegmentedFile.Builder

java.lang.Object
  org.apache.cassandra.io.util.SegmentedFile.Builder

Direct Known Subclasses:

BufferedSegmentedFile.Builder, CompressedSegmentedFile.Builder

Enclosing class:

SegmentedFile

public abstract static class SegmentedFile.Builder
extends java.lang.Object

Collects potential segmentation points in an underlying file, and builds a SegmentedFile to represent it.

Constructor Summary

SegmentedFile.Builder()

Method Summary

abstract void	addPotentialBoundary(long boundary) Adds a position that would be a safe place for a segment boundary in the file.
abstract SegmentedFile	complete(java.lang.String path) Called after all potential boundaries have been added to apply this Builder to a concrete file on disk.
void	deserializeBounds(java.io.DataInput dis)
void	serializeBounds(java.io.DataOutput dos)

Methods inherited from class java.lang.Object

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

Constructor Detail

SegmentedFile.Builder

public SegmentedFile.Builder()

Method Detail

addPotentialBoundary

public abstract void addPotentialBoundary(long boundary)

Adds a position that would be a safe place for a segment boundary in the file. For a block/row based file format, safe boundaries are block/row edges.

Parameters:

boundary - The absolute position of the potential boundary in the file.

complete

public abstract SegmentedFile complete(java.lang.String path)

Called after all potential boundaries have been added to apply this Builder to a concrete file on disk.

Parameters:

path - The file on disk.

serializeBounds

public void serializeBounds(java.io.DataOutput dos)
                     throws java.io.IOException

Throws:

java.io.IOException

deserializeBounds

public void deserializeBounds(java.io.DataInput dis)
                       throws java.io.IOException

Throws:

java.io.IOException