org.drools.planner.core.score.director.drools
Class DroolsScoreDirector

java.lang.Object
  org.drools.planner.core.score.director.AbstractScoreDirector<DroolsScoreDirectorFactory>
      org.drools.planner.core.score.director.drools.DroolsScoreDirector

All Implemented Interfaces:

ScoreDirector

public class DroolsScoreDirector
extends AbstractScoreDirector<DroolsScoreDirectorFactory>

Drools implementation of ScoreDirector, which directs the Rule Engine to calculate the Score of the Solution workingSolution.

See Also:

ScoreDirector

Field Summary

static String	GLOBAL_SCORE_HOLDER_KEY
protected org.drools.StatefulSession	workingMemory
protected ScoreHolder	workingScoreHolder

Fields inherited from class org.drools.planner.core.score.director.AbstractScoreDirector

calculateCount, chainedVariableToTrailingEntitiesMap, hasChainedVariables, logger, scoreDirectorFactory, workingSolution

Constructor Summary

DroolsScoreDirector(DroolsScoreDirectorFactory scoreDirectorFactory)

Method Summary

void	afterAllVariablesChanged(Object entity)
void	afterEntityAdded(Object entity)
void	afterEntityRemoved(Object entity)
void	afterProblemFactAdded(Object problemFact)
void	afterProblemFactChanged(Object problemFact)
void	afterProblemFactRemoved(Object problemFact)
void	afterVariableChanged(Object entity, String variableName)
protected String	buildScoreCorruptionAnalysis(ScoreDirector uncorruptedScoreDirector)
Score	calculateScore() Calculates the Score and updates the workingSolution accordingly.
AbstractScoreDirector	clone() Clones this ScoreDirector and its workingSolution.
void	dispose() Needs to be called after use because some implementations needs to clean up their resources.
protected org.drools.RuleBase	getRuleBase()
Collection<Object>	getWorkingFacts()
org.drools.WorkingMemory	getWorkingMemory()
void	setWorkingSolution(Solution workingSolution) The workingSolution must never be the same instance as the bestSolution, it should be a (un)changed clone.

Methods inherited from class org.drools.planner.core.score.director.AbstractScoreDirector

assertExpectedWorkingScore, assertWorkingScoreFromScratch, beforeAllVariablesChanged, beforeEntityAdded, beforeEntityRemoved, beforeProblemFactAdded, beforeProblemFactChanged, beforeProblemFactRemoved, beforeVariableChanged, cloneWorkingSolution, countWorkingSolutionUninitializedVariables, getCalculateCount, getScoreDefinition, getScoreDirectorFactory, getSolutionDescriptor, getTrailingEntity, getWorkingPlanningEntityList, getWorkingSolution, isWorkingSolutionInitialized, setCalculatedScore, toString

Methods inherited from class java.lang.Object

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

Field Detail

GLOBAL_SCORE_HOLDER_KEY

public static final String GLOBAL_SCORE_HOLDER_KEY

See Also:

Constant Field Values

workingMemory

protected org.drools.StatefulSession workingMemory

workingScoreHolder

protected ScoreHolder workingScoreHolder

Constructor Detail

DroolsScoreDirector

public DroolsScoreDirector(DroolsScoreDirectorFactory scoreDirectorFactory)

Method Detail

getRuleBase

protected org.drools.RuleBase getRuleBase()

getWorkingMemory

public org.drools.WorkingMemory getWorkingMemory()

Returns:

never null

setWorkingSolution

public void setWorkingSolution(Solution workingSolution)

Description copied from interface: ScoreDirector

The workingSolution must never be the same instance as the bestSolution, it should be a (un)changed clone.

Specified by:

setWorkingSolution in interface ScoreDirector

Overrides:

setWorkingSolution in class AbstractScoreDirector<DroolsScoreDirectorFactory>

Parameters:

workingSolution - never null

getWorkingFacts

public Collection<Object> getWorkingFacts()

afterEntityAdded

public void afterEntityAdded(Object entity)

Specified by:

afterEntityAdded in interface ScoreDirector

Overrides:

afterEntityAdded in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterAllVariablesChanged

public void afterAllVariablesChanged(Object entity)

Specified by:

afterAllVariablesChanged in interface ScoreDirector

Overrides:

afterAllVariablesChanged in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterVariableChanged

public void afterVariableChanged(Object entity,
                                 String variableName)

Specified by:

afterVariableChanged in interface ScoreDirector

Overrides:

afterVariableChanged in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterEntityRemoved

public void afterEntityRemoved(Object entity)

Specified by:

afterEntityRemoved in interface ScoreDirector

Overrides:

afterEntityRemoved in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterProblemFactAdded

public void afterProblemFactAdded(Object problemFact)

Specified by:

afterProblemFactAdded in interface ScoreDirector

Overrides:

afterProblemFactAdded in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterProblemFactChanged

public void afterProblemFactChanged(Object problemFact)

Specified by:

afterProblemFactChanged in interface ScoreDirector

Overrides:

afterProblemFactChanged in class AbstractScoreDirector<DroolsScoreDirectorFactory>

afterProblemFactRemoved

public void afterProblemFactRemoved(Object problemFact)

Specified by:

afterProblemFactRemoved in interface ScoreDirector

Overrides:

afterProblemFactRemoved in class AbstractScoreDirector<DroolsScoreDirectorFactory>

calculateScore

public Score calculateScore()

Description copied from interface: ScoreDirector

Calculates the Score and updates the workingSolution accordingly.

Returns:

never null, the Score of the workingSolution

clone

public AbstractScoreDirector clone()

Description copied from interface: ScoreDirector

Clones this ScoreDirector and its workingSolution. Use ScoreDirector.getWorkingSolution() to retrieve the workingSolution of that clone.

This is heavy method, because it usually breaks incremental score calculation. Use it sparingly. Therefore it's best to clone lazily by delaying the clone call as long as possible.

Specified by:

clone in interface ScoreDirector

Overrides:

clone in class AbstractScoreDirector<DroolsScoreDirectorFactory>

Returns:

never null

buildScoreCorruptionAnalysis

protected String buildScoreCorruptionAnalysis(ScoreDirector uncorruptedScoreDirector)

Overrides:

buildScoreCorruptionAnalysis in class AbstractScoreDirector<DroolsScoreDirectorFactory>

dispose

public void dispose()

Description copied from interface: ScoreDirector

Needs to be called after use because some implementations needs to clean up their resources.

Specified by:

dispose in interface ScoreDirector

Overrides:

dispose in class AbstractScoreDirector<DroolsScoreDirectorFactory>