org.apache.cassandra.io.util

Class CompressedSegmentedFile

java.lang.Object

org.apache.cassandra.utils.concurrent.SharedCloseableImpl

org.apache.cassandra.io.util.SegmentedFile

org.apache.cassandra.io.util.CompressedSegmentedFile

All Implemented Interfaces:

java.lang.AutoCloseable, ICompressedFile, SharedCloseable

public class CompressedSegmentedFile
extends SegmentedFile
implements ICompressedFile

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompressedSegmentedFile.Builder

Field Summary

Fields

Modifier and Type	Field and Description
CompressionMetadata	metadata

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

bufferSize, channel, length, onDiskLength

Constructor Summary

Constructors

Constructor and Description
CompressedSegmentedFile(ChannelProxy channel, int bufferSize, CompressionMetadata metadata)
CompressedSegmentedFile(ChannelProxy channel, int bufferSize, CompressionMetadata metadata, MmappedRegions regions)

Method Summary

Modifier and Type	Method and Description
void	addTo(Ref.IdentityCollection identities)
ChannelProxy	channel()
RandomAccessReader	createReader()
RandomAccessReader	createReader(com.google.common.util.concurrent.RateLimiter limiter)
void	dropPageCache(long before)
CompressionMetadata	getMetadata()
MmappedRegions	regions()
CompressedSegmentedFile	sharedCopy()

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

createReader, getBuilder, getCompressedBuilder, path, toString

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

close, close, isCleanedUp

Methods inherited from class java.lang.Object

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

Field Detail

metadata

public final CompressionMetadata metadata

Constructor Detail

CompressedSegmentedFile

public CompressedSegmentedFile(ChannelProxy channel,
                               int bufferSize,
                               CompressionMetadata metadata)

CompressedSegmentedFile

public CompressedSegmentedFile(ChannelProxy channel,
                               int bufferSize,
                               CompressionMetadata metadata,
                               MmappedRegions regions)

Method Detail

channel

public ChannelProxy channel()

Specified by:

channel in interface ICompressedFile

regions

public MmappedRegions regions()

Specified by:

regions in interface ICompressedFile

sharedCopy

public CompressedSegmentedFile 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.

addTo

public void addTo(Ref.IdentityCollection identities)

Specified by:

addTo in interface SharedCloseable

Overrides:

addTo in class SharedCloseableImpl

dropPageCache

public void dropPageCache(long before)

Overrides:

dropPageCache in class SegmentedFile

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

getMetadata

public CompressionMetadata getMetadata()

Specified by:

getMetadata in interface ICompressedFile