org.apache.cassandra.io.util

Class SegmentedFile.Builder

java.lang.Object

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

All Implemented Interfaces:

java.lang.AutoCloseable

Direct Known Subclasses:

BufferedPoolingSegmentedFile.Builder, BufferedSegmentedFile.Builder, CompressedSegmentedFile.Builder, MmappedSegmentedFile.Builder

Enclosing class:

SegmentedFile

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

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

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public 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

protected abstract SegmentedFile complete(ChannelProxy channel,
                                          long overrideLength)

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

Parameters:

channel - The channel to the file on disk.

complete

public SegmentedFile complete(java.lang.String path)

complete

public SegmentedFile complete(java.lang.String path,
                              long overrideLength)

serializeBounds

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

Throws:

java.io.IOException

deserializeBounds

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

Throws:

java.io.IOException

close

public java.lang.Throwable close(java.lang.Throwable accumulate)

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable