Package org.apache.lucene.util.packed

Class MonotonicBlockPackedReader

java.lang.Object

org.apache.lucene.util.LongValues

org.apache.lucene.util.packed.MonotonicBlockPackedReader

All Implemented Interfaces:

Accountable

public class MonotonicBlockPackedReader
extends LongValues
implements Accountable

Provides random access to a stream written with MonotonicBlockPackedWriter.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) float[]	averages
private static int	BLOCK_BITS
private static int	BLOCK_SIZE
(package private) int	blockMask
(package private) int	blockShift
(package private) long[]	minValues
private static int	MOD_MASK
(package private) LongValues[]	subReaders
(package private) long	sumBPV
(package private) long	totalByteCount
(package private) 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

Modifier	Constructor	Description
private	MonotonicBlockPackedReader(IndexInput in, int packedIntsVersion, int blockSize, long valueCount)

Method Summary

Modifier and Type	Method	Description
(package private) static long	expected(long origin, float average, int index)
long	get(long index)	Get value at index.
static MonotonicBlockPackedReader	of(IndexInput in, int packedIntsVersion, int blockSize, long valueCount)	Sole constructor.
long	ramBytesUsed()	Return the memory usage of this object in bytes.
long	size()	Returns the number of values
java.lang.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 Detail

BLOCK_SIZE

private static final int BLOCK_SIZE

See Also:

Constant Field Values

BLOCK_BITS

private static final int BLOCK_BITS

See Also:

Constant Field Values

MOD_MASK

private static final int MOD_MASK

See Also:

Constant Field Values

blockShift

final int blockShift

blockMask

final int blockMask

valueCount

final long valueCount

minValues

final long[] minValues

averages

final float[] averages

subReaders

final LongValues[] subReaders

sumBPV

final long sumBPV

totalByteCount

final long totalByteCount

Constructor Detail

MonotonicBlockPackedReader

private MonotonicBlockPackedReader(IndexInput in,
                                   int packedIntsVersion,
                                   int blockSize,
                                   long valueCount)
                            throws java.io.IOException

Throws:

java.io.IOException

Method Detail

expected

static long expected(long origin,
                     float average,
                     int index)

of

public static MonotonicBlockPackedReader of(IndexInput in,
                                            int packedIntsVersion,
                                            int blockSize,
                                            long valueCount)
                                     throws java.io.IOException

Sole constructor.

Throws:

java.io.IOException

get

public long get(long index)

Description copied from class: LongValues

Get value at index.

Specified by:

get in class LongValues

size

public long size()

Returns the number of values

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 java.lang.String toString()

Overrides:

toString in class java.lang.Object