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

Field Summary

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

bufferSize, channel, length, onDiskLength

Constructor Summary

Constructors

Constructor and Description
MmappedSegmentedFile(ChannelProxy channel, int bufferSize, long length, MmappedRegions regions)

Method Summary

Modifier and Type	Method and Description
RandomAccessReader	createReader()
RandomAccessReader	createReader(com.google.common.util.concurrent.RateLimiter limiter)
MmappedSegmentedFile	sharedCopy()

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

createReader, dropPageCache, getBuilder, getCompressedBuilder, path, 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,
                            int bufferSize,
                            long length,
                            MmappedRegions regions)

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.

createReader

public RandomAccessReader createReader()

Overrides:

createReader in class SegmentedFile

createReader

public RandomAccessReader createReader(com.google.common.util.concurrent.RateLimiter limiter)

Overrides:

createReader in class SegmentedFile