Package io.github.jbellis.jvector.disk

Class SimpleMappedReader

java.lang.Object

io.github.jbellis.jvector.disk.SimpleMappedReader

All Implemented Interfaces:

RandomAccessReader, AutoCloseable

public class SimpleMappedReader
extends Object
implements RandomAccessReader

Simple sample implementation of RandomAccessReader. It provides a bare minimum to run against disk in reasonable time. Does not handle files above 2 GB.

Constructor Summary

Constructors

Constructor	Description
SimpleMappedReader(String name)
SimpleMappedReader(Path path)

Method Summary

Modifier and Type	Method	Description
void	close()
SimpleMappedReader	duplicate()
void	read(int[] ints, int offset, int count)
void	readFully(byte[] b)
void	readFully(float[] buffer)
void	readFully(long[] vector)
int	readInt()
void	seek(long offset)

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleMappedReader

public SimpleMappedReader(Path path)
                   throws IOException

Throws:

IOException

SimpleMappedReader

public SimpleMappedReader(String name)
                   throws IOException

Throws:

IOException

Method Details

seek

public void seek(long offset)

Specified by:

seek in interface RandomAccessReader

readFully

public void readFully(float[] buffer)

Specified by:

readFully in interface RandomAccessReader

readFully

public void readFully(byte[] b)

Specified by:

readFully in interface RandomAccessReader

readFully

public void readFully(long[] vector)
               throws IOException

Specified by:

readFully in interface RandomAccessReader

Throws:

IOException

readInt

public int readInt()

Specified by:

readInt in interface RandomAccessReader

read

public void read(int[] ints,
 int offset,
 int count)

Specified by:

read in interface RandomAccessReader

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface RandomAccessReader

duplicate

public SimpleMappedReader duplicate()