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## 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
`protected class` | `FieldAccessingSolutionCloner.FieldAccessingSolutionClonerRun`
`protected static class` | `FieldAccessingSolutionCloner.Unprocessed`

Field Summary
`protected Map<Class,Constructor>` | `constructorCache`
`protected Map<Class,Boolean>` | `deepCloneDecisionActualValueClassCache`
`protected Map<Field,Boolean>` | `deepCloneDecisionFieldCache`
`protected Map<Class,List<Field>>` | `fieldListCache`
`protected SolutionDescriptor` | `solutionDescriptor`

Constructor Summary
`FieldAccessingSolutionCloner(SolutionDescriptor solutionDescriptor)`

Method Summary
`SolutionG` | `cloneSolution(SolutionG originalSolution)` Does a planning clone.
`protected boolean` | `isFieldAnEntityOrSolution(Field field)`
`protected boolean` | `isFieldAnEntityPropertyOnSolution(Field field)`
`protected
`<C> Constructor<C>`
` | `retrieveCachedConstructor(Class<C> clazz)`
`protected
`<C> List<Field>`
` | `retrieveCachedFields(Class<C> clazz)`
`protected boolean` | `retrieveDeepCloneDecision(Field field, 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<Field,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<?> actualValueClass)

### isFieldAnEntityPropertyOnSolution

    protected boolean isFieldAnEntityPropertyOnSolution(Field field)

### isFieldAnEntityOrSolution

    protected boolean isFieldAnEntityOrSolution(Field field)

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