Package de.regnis.q.sequence.line

Class QSequenceLineFileSystemCacheSegments

java.lang.Object

de.regnis.q.sequence.line.QSequenceLineFileSystemCacheSegments

class QSequenceLineFileSystemCacheSegments
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private RandomAccessFile	file
private File	filePath
private final int	maximumEntriesPerSegment
private final int	maximumSegmentsInMemory
private final List	memorySegments
private final List	segments
private final QSequenceLineTempDirectoryFactory	tempDirectoryFactory

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	close()
private 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 Details

tempDirectoryFactory

private final QSequenceLineTempDirectoryFactory tempDirectoryFactory

maximumEntriesPerSegment

private final int maximumEntriesPerSegment

maximumSegmentsInMemory

private final int maximumSegmentsInMemory

segments

private final List segments

memorySegments

private final List memorySegments

filePath

private File filePath

file

private RandomAccessFile file

Constructor Details

QSequenceLineFileSystemCacheSegments

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

Method Details

getFrom

public long getFrom(int index)
             throws IOException

Throws:

IOException

getLength

public int getLength(int index)
              throws IOException

Throws:

IOException

getHash

public int getHash(int index)
            throws IOException

Throws:

IOException

setFromLengthHash

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

Throws:

IOException

close

public void close()
           throws IOException

Throws:

IOException

getSegment

private QSequenceLineFileSystemCacheSegment getSegment(int segmentIndex)
                                                throws IOException

Throws:

IOException

maybeUnloadSegments

private void maybeUnloadSegments()
                          throws IOException

Throws:

IOException

getFile

private RandomAccessFile getFile()
                          throws IOException

Throws:

IOException