org.apache.lucene.util.bkd

Class OfflinePointReader

java.lang.Object

org.apache.lucene.util.bkd.PointReader

org.apache.lucene.util.bkd.OfflinePointReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

final class OfflinePointReader
extends PointReader

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

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	bytesPerDoc
private boolean	checked
(package private) long	countLeft
private int	docID
(package private) IndexInput	in
private boolean	longOrds
(package private) java.lang.String	name
private long	ord
private byte[]	packedValue
(package private) boolean	singleValuePerDoc

Constructor Summary

Constructors

Constructor and Description
OfflinePointReader(Directory tempDir, java.lang.String tempFileName, int packedBytesLength, long start, long length, boolean longOrds, boolean singleValuePerDoc)

Method Summary

Modifier and Type	Method and Description
void	close()
int	docID() DocID for this point
void	markOrds(long count, LongBitSet ordBitSet) Iterates through the next count ords, marking them in the provided ordBitSet.
boolean	next() Returns false once iteration is done, else true.
long	ord() Point ordinal
byte[]	packedValue() Returns the packed byte[] value
private static int	readInt(byte[] bytes, int pos)
private static long	readLong(byte[] bytes, int pos)
long	split(long count, LongBitSet rightTree, PointWriter left, PointWriter right, boolean doClearBits) Splits this reader into left and right partitions

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

packedValue

private final byte[] packedValue

singleValuePerDoc

final boolean singleValuePerDoc

bytesPerDoc

final int bytesPerDoc

ord

private long ord

docID

private int docID

longOrds

private boolean longOrds

checked

private boolean checked

name

final java.lang.String name

Constructor Detail

OfflinePointReader

OfflinePointReader(Directory tempDir,
                   java.lang.String tempFileName,
                   int packedBytesLength,
                   long start,
                   long length,
                   boolean longOrds,
                   boolean singleValuePerDoc)
            throws java.io.IOException

Throws:

java.io.IOException

Method Detail

next

public boolean next()
             throws java.io.IOException

Description copied from class: PointReader

Returns false once iteration is done, else true.

Specified by:

next in class PointReader

Throws:

java.io.IOException

packedValue

public byte[] packedValue()

Description copied from class: PointReader

Returns the packed byte[] value

Specified by:

packedValue in class PointReader

ord

public long ord()

Description copied from class: PointReader

Point ordinal

Specified by:

ord in class PointReader

docID

public int docID()

Description copied from class: PointReader

DocID for this point

Specified by:

docID in class PointReader

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

markOrds

public void markOrds(long count,
                     LongBitSet ordBitSet)
              throws java.io.IOException

Description copied from class: PointReader

Iterates through the next count ords, marking them in the provided ordBitSet.

Overrides:

markOrds in class PointReader

Throws:

java.io.IOException

split

public long split(long count,
                  LongBitSet rightTree,
                  PointWriter left,
                  PointWriter right,
                  boolean doClearBits)
           throws java.io.IOException

Description copied from class: PointReader

Splits this reader into left and right partitions

Overrides:

split in class PointReader

Throws:

java.io.IOException

readLong

private static long readLong(byte[] bytes,
                             int pos)

readInt

private static int readInt(byte[] bytes,
                           int pos)