net.obsearch.index.bucket.impl
Class BucketObjectDouble<O extends OBDouble>

java.lang.Object
  net.obsearch.index.bucket.BucketObject<O>
      net.obsearch.index.bucket.impl.BucketObjectDouble<O>

All Implemented Interfaces:

Comparable<BucketObjectDouble>

public class BucketObjectDouble<O extends OBDouble>
extends BucketObject<O>
implements Comparable<BucketObjectDouble>

BucketObjectDouble extends BucketObject by adding an SMAP vector used to minimize the number of distance computations required per object.

Author:

Arnoldo Jose Muller Molina

Constructor Summary

BucketObjectDouble()

BucketObjectDouble(double[] smapVector, long id)
Creates a new bucket double with

BucketObjectDouble(double[] smapVector, long id, O object)
Creates a new bucket double with

Method Summary

int	compareTo(BucketObjectDouble o)
static double[]	convertTuple(OBDouble object, OBDouble[] pivots)
boolean	equals(Object other)
int	getPivotSize() Returns the # of pivots.
double[]	getSmapVector()
double	lInf(BucketObjectDouble b) Execute l-inf between this object and b.
static double	lInf(double[] smapVector, double[] other)
void	read(ByteBuffer in, int pivots) Reads the given # of pivots from the given bytebuffer.
void	setSmapVector(double[] smapVector)
String	toString()
void	write(ByteBuffer out) Writes itself into the given data buffer.

Methods inherited from class net.obsearch.index.bucket.BucketObject

getId, getObject, setId, setObject

Methods inherited from class java.lang.Object

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

Constructor Detail

BucketObjectDouble

public BucketObjectDouble()

BucketObjectDouble

public BucketObjectDouble(double[] smapVector,
                          long id)

Creates a new bucket double with

Parameters:

bucket - Bucket number.

level - Level within the hash table.

smapVector - The distances of the corresponding object and the pivots for the given level.

exclusionBucket - If true, the corresponding object is in the exclusion zone.

id - Optional id of the given object. Not always used.

BucketObjectDouble

public BucketObjectDouble(double[] smapVector,
                          long id,
                          O object)

Creates a new bucket double with

Parameters:

bucket - Bucket number.

level - Level within the hash table.

smapVector - The distances of the corresponding object and the pivots for the given level.

exclusionBucket - If true, the corresponding object is in the exclusion zone.

id - Optional id of the given object. Not always used.

Method Detail

equals

public boolean equals(Object other)

Overrides:

equals in class Object

lInf

public double lInf(BucketObjectDouble b)

Execute l-inf between this object and b.

Parameters:

b -

Returns:

l-inf

lInf

public static double lInf(double[] smapVector,
                          double[] other)

convertTuple

public static double[] convertTuple(OBDouble object,
                                    OBDouble[] pivots)
                             throws OBException

Throws:

OBException

getSmapVector

public double[] getSmapVector()

Returns:

the smapVector

write

public void write(ByteBuffer out)

Writes itself into the given data buffer.

Parameters:

data - The ByteBuffer that will be modified.

read

public void read(ByteBuffer in,
                 int pivots)

Reads the given # of pivots from the given bytebuffer.

Specified by:

read in class BucketObject<O extends OBDouble>

Parameters:

out -

pivots -

setSmapVector

public void setSmapVector(double[] smapVector)

Parameters:

smapVector - the smapVector to set

getPivotSize

public int getPivotSize()

Description copied from class: BucketObject

Returns the # of pivots.

Specified by:

getPivotSize in class BucketObject<O extends OBDouble>

Returns:

compareTo

public int compareTo(BucketObjectDouble o)

Specified by:

compareTo in interface Comparable<BucketObjectDouble>

toString

public String toString()

Overrides:

toString in class Object