mobios.type
Class Image

java.lang.Object
  mobios.type.IndexObject
      mobios.type.Image

All Implemented Interfaces:

Externalizable, Serializable, Comparable<IndexObject>

public class Image
extends IndexObject

TODO This is the key of Image. This object stores an array of floating numbers representing the key for image object. It is designed only for MoBIoS image dataset, might not work for other datasets.

Version:

2006.07.26

Author:

Wenguo Liu, Ru Mao, Willard

See Also:

Serialized Form

Constructor Summary

Image()

Image(mobios.db.Table table, int rowID, float[] feas)

Image(mobios.db.Table table, int rowID, float[] feas, double[] maxDist)

Method Summary

int	compareTo(IndexObject oThat)
boolean	equals(Object other)
IndexObject[]	expand() This method is necessary to implement bucketing, so that similar objects are only stored once in the database.
float	getFeature(int index)
int	hashCode()
void	readExternal(ObjectInput in)
int	size()
String	toString() all implementing classes are required to override toString
void	writeExternal(ObjectOutput out)

Methods inherited from class mobios.type.IndexObject

getRowID, setRowID, setRowIDLength

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Image

public Image()

Image

public Image(mobios.db.Table table,
             int rowID,
             float[] feas)

Image

public Image(mobios.db.Table table,
             int rowID,
             float[] feas,
             double[] maxDist)

Parameters:

table -

rowID -

feas - an array of floats over which the feature values are defined.

maxDist -

Method Detail

getFeature

public float getFeature(int index)

Parameters:

index -

Returns:

size

public int size()

Specified by:

size in class IndexObject

Returns:

the size of the object

expand

public IndexObject[] expand()

Description copied from class: IndexObject

This method is necessary to implement bucketing, so that similar objects are only stored once in the database. If you do not want to implement bucketing for your object, you can just return an array of length one containing this object.

Specified by:

expand in class IndexObject

Returns:

an array of IndexObjects

compareTo

public int compareTo(IndexObject oThat)

Specified by:

compareTo in interface Comparable<IndexObject>

Specified by:

compareTo in class IndexObject

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Description copied from class: IndexObject

all implementing classes are required to override toString

Specified by:

toString in class IndexObject

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class IndexObject

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class IndexObject

Throws:

IOException

ClassNotFoundException