org.apache.cassandra.io.util

Class MmappedSegmentedFile.Builder

java.lang.Object

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

org.apache.cassandra.io.util.MmappedSegmentedFile.Builder

All Implemented Interfaces:

java.lang.AutoCloseable

Enclosing class:

MmappedSegmentedFile

public static class MmappedSegmentedFile.Builder
extends SegmentedFile.Builder

Overrides the default behaviour to create segments of a maximum size.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MmappedSegmentedFile.Builder.Boundaries

Constructor Summary

Constructors

Constructor and Description
MmappedSegmentedFile.Builder()

Method Summary

Methods

Modifier and Type	Method and Description
void	addPotentialBoundary(long boundary) Adds a position that would be a safe place for a segment boundary in the file.
long[]	boundaries()
SegmentedFile	complete(ChannelProxy channel, long overrideLength) Called after all potential boundaries have been added to apply this Builder to a concrete file on disk.
void	deserializeBounds(java.io.DataInput in)
void	serializeBounds(java.io.DataOutput out)

Methods inherited from class org.apache.cassandra.io.util.SegmentedFile.Builder

close, close, complete, complete

Methods inherited from class java.lang.Object

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

Constructor Detail

MmappedSegmentedFile.Builder

public MmappedSegmentedFile.Builder()

Method Detail

boundaries

public long[] boundaries()

addPotentialBoundary

public void addPotentialBoundary(long boundary)

Description copied from class: SegmentedFile.Builder

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.

Specified by:

addPotentialBoundary in class SegmentedFile.Builder

Parameters:

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

complete

public SegmentedFile complete(ChannelProxy channel,
                     long overrideLength)

Description copied from class: SegmentedFile.Builder

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

Specified by:

complete in class SegmentedFile.Builder

Parameters:

channel - The channel to the file on disk.

serializeBounds

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

Overrides:

serializeBounds in class SegmentedFile.Builder

Throws:

java.io.IOException

deserializeBounds

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

Overrides:

deserializeBounds in class SegmentedFile.Builder

Throws:

java.io.IOException