org.optaplanner.core.impl.domain.solution.cloner

Class FieldAccessingSolutionCloner<SolutionG extends Solution>

java.lang.Object

org.optaplanner.core.impl.domain.solution.cloner.FieldAccessingSolutionCloner<SolutionG>

All Implemented Interfaces:

SolutionCloner<SolutionG>

public class FieldAccessingSolutionCloner<SolutionG extends Solution>
extends Object
implements SolutionCloner<SolutionG>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	FieldAccessingSolutionCloner.FieldAccessingSolutionClonerRun
protected static class	FieldAccessingSolutionCloner.Unprocessed

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Class,Constructor>	constructorCache
protected Map<Class,Boolean>	deepCloneDecisionActualValueClassCache
protected Map<org.apache.commons.lang3.tuple.Pair<Field,Class>,Boolean>	deepCloneDecisionFieldCache
protected Map<Class,List<Field>>	fieldListCache
protected SolutionDescriptor	solutionDescriptor

Constructor Summary

Constructors

Constructor and Description
FieldAccessingSolutionCloner(SolutionDescriptor solutionDescriptor)

Method Summary

Methods

Modifier and Type	Method and Description
SolutionG	cloneSolution(SolutionG originalSolution) Does a planning clone.
protected boolean	isClassDeepCloned(Class<?> type)
protected boolean	isFieldAnEntityOrSolution(Field field, Class fieldInstanceClass)
protected boolean	isFieldAnEntityPropertyOnSolution(Field field, Class fieldInstanceClass)
protected <C> Constructor<C>	retrieveCachedConstructor(Class<C> clazz)
protected <C> List<Field>	retrieveCachedFields(Class<C> clazz)
protected boolean	retrieveDeepCloneDecision(Field field, Class fieldInstanceClass, Class<?> actualValueClass)
protected boolean	retrieveDeepCloneDecisionForActualValueClass(Class<?> actualValueClass)

Methods inherited from class java.lang.Object

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

Field Detail

solutionDescriptor

protected final SolutionDescriptor solutionDescriptor

constructorCache

protected final Map<Class,Constructor> constructorCache

fieldListCache

protected final Map<Class,List<Field>> fieldListCache

deepCloneDecisionFieldCache

protected final Map<org.apache.commons.lang3.tuple.Pair<Field,Class>,Boolean> deepCloneDecisionFieldCache

deepCloneDecisionActualValueClassCache

protected final Map<Class,Boolean> deepCloneDecisionActualValueClassCache

Constructor Detail

FieldAccessingSolutionCloner

public FieldAccessingSolutionCloner(SolutionDescriptor solutionDescriptor)

Method Detail

cloneSolution

public SolutionG cloneSolution(SolutionG originalSolution)

Description copied from interface: SolutionCloner

Does a planning clone. The returned Solution clone must fulfill these requirements:

• The clone must represent the same planning problem. Usually it reuses the same instances of the problem facts and problem fact collections as the original.
• The clone must use different, cloned instances of the entities and entity collections. If a cloned entity changes, the original must remain unchanged. If an entity is added or removed in a cloned Solution, the original Solution must remain unchanged.

Note that a class might support more than 1 clone method: planning clone is just one of them.

Specified by:

cloneSolution in interface SolutionCloner<SolutionG extends Solution>

Parameters:

originalSolution - never null, the original Solution

Returns:

never null, the cloned Solution

retrieveCachedConstructor

protected <C> Constructor<C> retrieveCachedConstructor(Class<C> clazz)
                                            throws NoSuchMethodException

Throws:

NoSuchMethodException

retrieveCachedFields

protected <C> List<Field> retrieveCachedFields(Class<C> clazz)

retrieveDeepCloneDecision

protected boolean retrieveDeepCloneDecision(Field field,
                                Class fieldInstanceClass,
                                Class<?> actualValueClass)

isFieldAnEntityPropertyOnSolution

protected boolean isFieldAnEntityPropertyOnSolution(Field field,
                                        Class fieldInstanceClass)

isFieldAnEntityOrSolution

protected boolean isFieldAnEntityOrSolution(Field field,
                                Class fieldInstanceClass)

retrieveDeepCloneDecisionForActualValueClass

protected boolean retrieveDeepCloneDecisionForActualValueClass(Class<?> actualValueClass)

isClassDeepCloned

protected boolean isClassDeepCloned(Class<?> type)