mobios.type
Class IndexObject

java.lang.Object
  mobios.type.IndexObject

All Implemented Interfaces:

Externalizable, Serializable, Comparable<IndexObject>

Direct Known Subclasses:

DoubleVector, Fragment, Image

public abstract class IndexObject
extends Object
implements Externalizable, Comparable<IndexObject>

Author:

Willard

See Also:

Serialized Form

Constructor Summary

IndexObject()

IndexObject(int rowID)

Method Summary

abstract int	compareTo(IndexObject oThat)
abstract IndexObject[]	expand() This method is necessary to implement bucketing, so that similar objects are only stored once in the database.
int	getRowID()
void	readExternal(ObjectInput in)
void	setRowID(int rowID)
void	setRowIDLength(int length)
abstract int	size()
abstract String	toString() all implementing classes are required to override toString
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IndexObject

public IndexObject()

IndexObject

public IndexObject(int rowID)

Method Detail

setRowID

public void setRowID(int rowID)

getRowID

public int getRowID()

setRowIDLength

public void setRowIDLength(int length)

toString

public abstract String toString()

all implementing classes are required to override toString

Overrides:

toString in class Object

size

public abstract int size()

Returns:

the size of the object

expand

public abstract IndexObject[] expand()

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.

Returns:

an array of IndexObjects

compareTo

public abstract int compareTo(IndexObject oThat)

Specified by:

compareTo in interface Comparable<IndexObject>

Parameters:

oThat -

Returns:

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException