fr.jussieu.gla.wasa.monitor.event
Class NotifyingAlgorithm

java.lang.Object
  |
  +--fr.jussieu.gla.wasa.core.Algorithm
        |
        +--fr.jussieu.gla.wasa.monitor.event.NotifyingAlgorithm

public class NotifyingAlgorithm

extends Algorithm

An extension of the Algorithm casting events for notifying algorithm steps.

Version:

$Revision: 1.14 $ $Date: 2002/04/10 18:04:31 $

Author:

Laurent Caillette

Constructor Summary

NotifyingAlgorithm(Engine engine)

Method Summary

void	addListener(AlgorithmListener listener)
protected void	customize()
protected void	evaluateConstraints() Evaluates Constraints on current Buisness Object state.
protected AlgorithmState	explore() Evaluates Constraints on current Buisness Object state.
void	removeListener(AlgorithmListener listener)
AlgorithmState	step()

Methods inherited from class fr.jussieu.gla.wasa.core.Algorithm

getAbsoluteBest, getBestInLastNeighbourhood, getCurrentConstraint, getEngine, getErrorAssigned, getErrorTable, getLastEvaluation, getProblem, getSelectedVar, getState, getStepStartPoint, getTabuList, setState

Methods inherited from class java.lang.Object

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

Constructor Detail

NotifyingAlgorithm

public NotifyingAlgorithm(Engine engine)

Method Detail

evaluateConstraints

protected void evaluateConstraints()
                            throws EngineException,
                                   java.lang.CloneNotSupportedException

Description copied from class: Algorithm

Evaluates Constraints on current Buisness Object state.

Instance variables access :

• #problem : errors are unset
• #errorTable : cleared, then updated with errors set by each constraint's evaluation
• #lastEvaluation : assigned
• #absoluteBest : re-assigned if better than best was found

Method calls

• Problem#unsetErrors()
• Constraint.evaluate()
• #notifyErrorFor( Var ) from Constraint.evaluate()

Overrides:

evaluateConstraints in class Algorithm

explore

protected AlgorithmState explore()
                          throws EngineException,
                                 java.lang.CloneNotSupportedException

Description copied from class: Algorithm

Evaluates Constraints on current Buisness Object state.

Instance variables access :

• #stepStartPoint
• #lastEvaluation : assigned
• #absoluteBest : re-assigned if better than best was found

Method calls

• Problem.restore( Configuration )
• Explorer#reset()
• Explorer#apply()

Overrides:

explore in class Algorithm

Following copied from class: fr.jussieu.gla.wasa.core.Algorithm

Returns:

false if no Var to run an Explorer on was found, true otherwise.

customize

protected void customize()
                  throws EngineException,
                         java.lang.CloneNotSupportedException

Overrides:

customize in class Algorithm

step

public AlgorithmState step()
                    throws EngineException,
                           java.lang.CloneNotSupportedException

Overrides:

step in class Algorithm

addListener

public void addListener(AlgorithmListener listener)

removeListener

public void removeListener(AlgorithmListener listener)