org.apache.cassandra.io.util

Class MmappedSegmentedFile

java.lang.Object

org.apache.cassandra.utils.concurrent.SharedCloseableImpl

org.apache.cassandra.io.util.SegmentedFile

org.apache.cassandra.io.util.MmappedSegmentedFile

All Implemented Interfaces:

java.lang.AutoCloseable, SharedCloseable

public class MmappedSegmentedFile
extends SegmentedFile

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.io.util.SegmentedFile

SegmentedFile.Cleanup

Field Summary

Fields inherited from class org.apache.cassandra.io.util.SegmentedFile

channel, onDiskLength

Constructor Summary

Constructors

Constructor and Description
MmappedSegmentedFile(ChannelProxy channel, long length, MmappedRegions regions)
MmappedSegmentedFile(ChannelProxy channel, RebuffererFactory rebufferer, long length)

Method Summary

Modifier and Type	Method and Description
MmappedSegmentedFile	sharedCopy()

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

createReader, createReader, createReader, dataLength, dropPageCache, getBuilder, getCompressedBuilder, path, rebuffererFactory, toString

Methods inherited from class org.apache.cassandra.utils.concurrent.SharedCloseableImpl

addTo, close, close, isCleanedUp

Methods inherited from class java.lang.Object

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

Constructor Detail

MmappedSegmentedFile

public MmappedSegmentedFile(ChannelProxy channel,
                            long length,
                            MmappedRegions regions)

MmappedSegmentedFile

public MmappedSegmentedFile(ChannelProxy channel,
                            RebuffererFactory rebufferer,
                            long length)

Method Detail

sharedCopy

public MmappedSegmentedFile sharedCopy()

Specified by:

sharedCopy in interface SharedCloseable

Specified by:

sharedCopy in class SegmentedFile

Returns:

a new instance of the object representing the same state and backed by the same underlying resources. Coordinates with the original (and other instances) when the underlying resource should be closed. Throws an exception if the shared resource has already been closed.