Package de.regnis.q.sequence.line

Class QSequenceLineFileSystemCacheSegments

java.lang.Object

de.regnis.q.sequence.line.QSequenceLineFileSystemCacheSegments

class QSequenceLineFileSystemCacheSegments
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private java.io.RandomAccessFile	file
private java.io.File	filePath
private int	maximumEntriesPerSegment
private int	maximumSegmentsInMemory
private java.util.List	memorySegments
private java.util.List	segments
private QSequenceLineTempDirectoryFactory	tempDirectoryFactory

Constructor Summary

Constructors

Constructor	Description
QSequenceLineFileSystemCacheSegments(QSequenceLineTempDirectoryFactory tempDirectoryFactory, int maximumBytesInMemory, int segmentBytesSize)

Method Summary

Modifier and Type	Method	Description
void	close()
private java.io.RandomAccessFile	getFile()
long	getFrom(int index)
int	getHash(int index)
int	getLength(int index)
private QSequenceLineFileSystemCacheSegment	getSegment(int segmentIndex)
private void	maybeUnloadSegments()
void	setFromLengthHash(int index, long from, int length, int hash)

Methods inherited from class java.lang.Object

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

Field Detail

tempDirectoryFactory

private final QSequenceLineTempDirectoryFactory tempDirectoryFactory

maximumEntriesPerSegment

private final int maximumEntriesPerSegment

maximumSegmentsInMemory

private final int maximumSegmentsInMemory

segments

private final java.util.List segments

memorySegments

private final java.util.List memorySegments

filePath

private java.io.File filePath

file

private java.io.RandomAccessFile file

Constructor Detail

QSequenceLineFileSystemCacheSegments

public QSequenceLineFileSystemCacheSegments(QSequenceLineTempDirectoryFactory tempDirectoryFactory,
                                            int maximumBytesInMemory,
                                            int segmentBytesSize)

Method Detail

getFrom

public long getFrom(int index)
             throws java.io.IOException

Throws:

java.io.IOException

getLength

public int getLength(int index)
              throws java.io.IOException

Throws:

java.io.IOException

getHash

public int getHash(int index)
            throws java.io.IOException

Throws:

java.io.IOException

setFromLengthHash

public void setFromLengthHash(int index,
                              long from,
                              int length,
                              int hash)
                       throws java.io.IOException

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

getSegment

private QSequenceLineFileSystemCacheSegment getSegment(int segmentIndex)
                                                throws java.io.IOException

Throws:

java.io.IOException

maybeUnloadSegments

private void maybeUnloadSegments()
                          throws java.io.IOException

Throws:

java.io.IOException

getFile

private java.io.RandomAccessFile getFile()
                                  throws java.io.IOException

Throws:

java.io.IOException