net.obsearch.index
Class OBVectorFloat

java.lang.Object
  net.obsearch.index.OBVectorFloat

All Implemented Interfaces:

OB, OBFloat, Storable

public class OBVectorFloat
extends Object
implements OBFloat

L1 distance implementation for floats.

Author:

Arnoldo Jose Muller Molina

Constructor Summary

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

OBVectorFloat(float[] data)

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

Method Summary

float	distance(OBFloat object) Calculates the similarity of "this" and "object".
boolean	equals(Object o)
void	load(byte[] input) Populates the object's internal properties from the given byte stream.
byte[]	store() Stores this object in a byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

OBVectorFloat

public OBVectorFloat()

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

OBVectorFloat

public OBVectorFloat(float[] data)

OBVectorFloat

public OBVectorFloat(Random r,
                     int dim)

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

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

distance

public float distance(OBFloat object)
               throws OBException

Description copied from interface: OBFloat

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

Specified by:

distance in interface OBFloat

Parameters:

object - The object of type OBFloat to be compared

Throws:

OBException - User generated exception

load

public void load(byte[] input)
          throws OBException,
                 IOException

Description copied from interface: Storable

Populates the object's internal properties from the given byte stream.

Specified by:

load in interface Storable

Parameters:

input - byte array from where we will load data.

Throws:

OBException - if the data cannot be loaded.

IOException

store

public byte[] store()
             throws OBException,
                    IOException

Description copied from interface: Storable

Stores this object in a byte array.

Specified by:

store in interface Storable

Throws:

OBException

IOException