Top Description Fields Constructors Methods

org.apache.poi.ss.formula

pack-priv final Class EvaluationCache

Class Inheritance

extends Object

java.lang.Object
org.apache.poi.ss.formula.EvaluationCache

Imports

org.apache.poi.ss.formula.FormulaUsedBlankCellSet.BookSheetKey, .PlainCellCache.Loc, org.apache.poi.ss.formula.eval.BlankEval, .BoolEval, .ErrorEval, .NumberEval, .StringEval, .ValueEval, org.apache.poi.ss.usermodel.CellType

Performance optimisation for org.apache.poi.ss.usermodel.FormulaEvaluator. This class stores previously calculated values of already visited cells, to avoid unnecessary re-calculation when the same cells are referenced multiple times

Field Summary

Modifier and Type	Field and Description
pack-priv final IEvaluationListener	_evaluationListener only used for testing.
private final FormulaCellCache	_formulaCellCache
private final PlainCellCache	_plainCellCache

Constructor Summary

Access	Constructor and Description
pack-priv	EvaluationCache(IEvaluationListener evaluationListener)

Method Summary

Modifier and Type	Method and Description
private boolean	areValuesEqual(ValueEval a, ValueEval b)
public void	clear() Should be called whenever there are changes to input cells in the evaluated workbook.
public FormulaCellCacheEntry	getOrCreateFormulaCellEntry(EvaluationCell cell)
public PlainValueCellCacheEntry	getPlainValueEntry(int bookIndex, int sheetIndex, int rowIndex, int columnIndex, ValueEval value)
public void	notifyDeleteCell(int bookIndex, int sheetIndex, EvaluationCell cell)
public void	notifyUpdateCell(int bookIndex, int sheetIndex, EvaluationCell cell)
private void	updateAnyBlankReferencingFormulas(int bookIndex, int sheetIndex, final int rowIndex, final int columnIndex)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

_evaluationListener	back to summary
pack-priv final IEvaluationListener _evaluationListener only used for testing. `null` otherwise

_formulaCellCache	back to summary
private final FormulaCellCache _formulaCellCache

_plainCellCache	back to summary
private final PlainCellCache _plainCellCache

Constructor Detail

EvaluationCache	back to summary
pack-priv EvaluationCache(IEvaluationListener evaluationListener)

Method Detail

areValuesEqual	back to summary
private boolean areValuesEqual(ValueEval a, ValueEval b)

clear	back to summary
public void clear() Should be called whenever there are changes to input cells in the evaluated workbook.

getOrCreateFormulaCellEntry	back to summary
public FormulaCellCacheEntry getOrCreateFormulaCellEntry(EvaluationCell cell)

getPlainValueEntry	back to summary
public PlainValueCellCacheEntry getPlainValueEntry(int bookIndex, int sheetIndex, int rowIndex, int columnIndex, ValueEval value)

notifyDeleteCell	back to summary
public void notifyDeleteCell(int bookIndex, int sheetIndex, EvaluationCell cell)

notifyUpdateCell	back to summary
public void notifyUpdateCell(int bookIndex, int sheetIndex, EvaluationCell cell)

updateAnyBlankReferencingFormulas	back to summary
private void updateAnyBlankReferencingFormulas(int bookIndex, int sheetIndex, final int rowIndex, final int columnIndex)