Package org.apache.lucene.util.bkd

Class OfflinePointReader

java.lang.Object

org.apache.lucene.util.bkd.OfflinePointReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, PointReader

public final class OfflinePointReader
extends java.lang.Object
implements PointReader

Reads points from disk in a fixed-with format, previously written with OfflinePointWriter.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	OfflinePointReader.OfflinePointValue	Reusable implementation for a point value offline

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	checked
private BKDConfig	config
(package private) long	countLeft
(package private) IndexInput	in
private int	maxPointOnHeap
(package private) java.lang.String	name
(package private) int	offset
(package private) byte[]	onHeapBuffer
private int	pointsInBuffer
private OfflinePointReader.OfflinePointValue	pointValue

Constructor Summary

Constructors

Constructor	Description
OfflinePointReader(BKDConfig config, Directory tempDir, java.lang.String tempFileName, long start, long length, byte[] reusableBuffer)

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	next()	Returns false once iteration is done, else true.
PointValue	pointValue()	Sets the packed value in the provided ByteRef

Methods inherited from class java.lang.Object

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

Field Detail

countLeft

long countLeft

in

final IndexInput in

onHeapBuffer

byte[] onHeapBuffer

offset

int offset

checked

private boolean checked

config

private final BKDConfig config

pointsInBuffer

private int pointsInBuffer

maxPointOnHeap

private final int maxPointOnHeap

name

final java.lang.String name

pointValue

private final OfflinePointReader.OfflinePointValue pointValue

Constructor Detail

OfflinePointReader

public OfflinePointReader(BKDConfig config,
                          Directory tempDir,
                          java.lang.String tempFileName,
                          long start,
                          long length,
                          byte[] reusableBuffer)
                   throws java.io.IOException

Throws:

java.io.IOException

Method Detail

next

public boolean next()
             throws java.io.IOException

Description copied from interface: PointReader

Returns false once iteration is done, else true.

Specified by:

next in interface PointReader

Throws:

java.io.IOException

pointValue

public PointValue pointValue()

Description copied from interface: PointReader

Sets the packed value in the provided ByteRef

Specified by:

pointValue in interface PointReader

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Throws:

java.io.IOException