ostore.introspect
Class SemanticDistanceModel.Delta

java.lang.Object
  |
  +--ostore.introspect.SemanticDistanceModel.Delta

All Implemented Interfaces:

Model.Delta, QueueElementIF, QuickSerializable

Enclosing class:

SemanticDistanceModel

public static class SemanticDistanceModel.Delta

extends Object

implements Model.Delta

Implements Model.Delta for this model type.

Version:

$Id: SemanticDistanceModel.java,v 1.11 2003/11/17 23:52:43 emilong Exp $

Author:

Jeff Pang

Constructor Summary

SemanticDistanceModel.Delta(InputBuffer buffer)

SemanticDistanceModel.Delta(QSVector obs, SemanticDistanceModel.Filter filter, SemanticDistanceModel.Table base)

Method Summary

SemanticDistanceModel.Filter	getFilter() Get the filter used for this delta's computations
SemanticDistanceModel.Table	getTable() Get the table of distance values in this delta
void	serialize(OutputBuffer buffer) Add the object to the buffer.
void	setFilter(SemanticDistanceModel.Filter filter) Set the filter used for this delta's computations
Model.Delta	sum(Model.Delta other) Produce the sum of this and another Delta.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SemanticDistanceModel.Delta

public SemanticDistanceModel.Delta(QSVector obs,
                                   SemanticDistanceModel.Filter filter,
                                   SemanticDistanceModel.Table base)

Parameters:

obs - new observations to include in this delta. This should be a List<QSPair<QuickSerializable event, Time t>> sorted by time in ascending order.

filter - the filter to use to recalculate distances.

base - the base table that we started with (we extract the previous access times from this table)

SemanticDistanceModel.Delta

public SemanticDistanceModel.Delta(InputBuffer buffer)
                            throws QSException

Method Detail

serialize

public void serialize(OutputBuffer buffer)

Description copied from interface: QuickSerializable

Add the object to the buffer.

Specified by:

serialize in interface QuickSerializable

Parameters:

buffer - the output buffer to add the object to

sum

public Model.Delta sum(Model.Delta other)

Description copied from interface: Model.Delta

Produce the sum of this and another Delta.

Specified by:

sum in interface Model.Delta

Parameters:

other - The other Delta.

Returns:

a new Delta, constructed such that applying it to a Model produces an equivalent Model to that produced by adding first this, then other.

getFilter

public SemanticDistanceModel.Filter getFilter()

Get the filter used for this delta's computations

setFilter

public void setFilter(SemanticDistanceModel.Filter filter)

Set the filter used for this delta's computations

getTable

public SemanticDistanceModel.Table getTable()

Get the table of distance values in this delta

toString

public String toString()

Overrides:

toString in class Object