Package org.apache.lucene.util.packed

Class BlockPackedReader

java.lang.Object

org.apache.lucene.util.LongValues

org.apache.lucene.util.packed.BlockPackedReader

All Implemented Interfaces:

Accountable

public final class BlockPackedReader
extends LongValues
implements Accountable

Provides random access to a stream written with BlockPackedWriter.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	blockMask
private final int	blockShift
private final long[]	minValues
private final PackedInts.Reader[]	subReaders
private final long	sumBPV
private final long	valueCount

Fields inherited from class org.apache.lucene.util.LongValues

IDENTITY, ZEROES

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
BlockPackedReader(IndexInput in, int packedIntsVersion, int blockSize, long valueCount, boolean direct)	Sole constructor.

Method Summary

Modifier and Type	Method	Description
long	get(long index)	Get value at index.
long	ramBytesUsed()	Return the memory usage of this object in bytes.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Details

blockShift

private final int blockShift

blockMask

private final int blockMask

valueCount

private final long valueCount

minValues

private final long[] minValues

subReaders

private final PackedInts.Reader[] subReaders

sumBPV

private final long sumBPV

Constructor Details

BlockPackedReader

public BlockPackedReader(IndexInput in,
 int packedIntsVersion,
 int blockSize,
 long valueCount,
 boolean direct)
                  throws IOException

Sole constructor.

Throws:

IOException

Method Details

get

public long get(long index)

Description copied from class: LongValues

Get value at index.

Specified by:

get in class LongValues

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable

toString

public String toString()

Overrides:

toString in class Object