net.obsearch.index
Class OBVectorDouble

java.lang.Object
  net.obsearch.index.OBVectorDouble

All Implemented Interfaces:

net.obsearch.OB, OBDouble, net.obsearch.Storable

public class OBVectorDouble
extends Object
implements OBDouble

L1 distance implementation for doubles.

Author:

Arnoldo Jose Muller Molina

Constructor Summary

OBVectorDouble()
Default constructor must be provided by every object that implements the interface OB.

OBVectorDouble(double[] data)

OBVectorDouble(Random r, int dim)
Creates a new vector with dim dimensions created by Random.nextDouble()

Method Summary

double	distance(OBDouble object) Calculates the similarity of "this" and "object".
boolean	equals(Object o)
void	load(byte[] input)
byte[]	store()

Methods inherited from class java.lang.Object

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

Constructor Detail

OBVectorDouble

public OBVectorDouble()

Default constructor must be provided by every object that implements the interface OB.

OBVectorDouble

public OBVectorDouble(double[] data)

OBVectorDouble

public OBVectorDouble(Random r,
                      int dim)

Creates a new vector with dim dimensions created by Random.nextDouble()

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

distance

public double distance(OBDouble object)
                throws net.obsearch.exception.OBException

Description copied from interface: OBDouble

Calculates the similarity of "this" and "object". The function must satisfy the triangular inequality and return a double.

Specified by:

distance in interface OBDouble

Parameters:

object - The object of type OBDouble to be compared

Throws:

net.obsearch.exception.OBException - User generated exception

load

public void load(byte[] input)
          throws net.obsearch.exception.OBException,
                 IOException

Specified by:

load in interface net.obsearch.Storable

Throws:

net.obsearch.exception.OBException

IOException

store

public byte[] store()
             throws net.obsearch.exception.OBException,
                    IOException

Specified by:

store in interface net.obsearch.Storable

Throws:

net.obsearch.exception.OBException

IOException