What Is poi-5.2.3.jar?

poi-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which provides an API for Microsoft document files of Word, Excel, PowerPoint, and Visio.

poi-5.2.3.jar supports Apache POI components that read and write Microsoft's OLE 2 Compound document format, which is used in early versions of Microsoft Office tools like Word 97, Excel 97, PowerPoint 97, etc.

poi-5.2.3.jar is distributed as part of the poi-bin-5.2.3-20220909.zip download file.

JAR File Size and Download Location:

JAR name: poi-5.2.3.jar
Target JDK version: 9

File name: poi.jar, poi-5.2.3.jar
File size: 2964641 bytes
Release date: 09-09-2022
Download: Apache POI Website

Here are Java Source Code files for poi-5.2.3.jar:

⏎ org/apache/poi/ss/formula/EvaluationCache.java

/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.ss.formula;

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

/**
 * Performance optimisation for {@link 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
 */
final class EvaluationCache {

    private final PlainCellCache _plainCellCache;
    private final FormulaCellCache _formulaCellCache;
    /** only used for testing. <code>null</code> otherwise */
    final IEvaluationListener _evaluationListener;

    /* package */EvaluationCache(IEvaluationListener evaluationListener) {
        _evaluationListener = evaluationListener;
        _plainCellCache = new PlainCellCache();
        _formulaCellCache = new FormulaCellCache();
    }

    public void notifyUpdateCell(int bookIndex, int sheetIndex, EvaluationCell cell) {
        FormulaCellCacheEntry fcce = _formulaCellCache.get(cell);

        int rowIndex = cell.getRowIndex();
        int columnIndex = cell.getColumnIndex();
        Loc loc = new Loc(bookIndex, sheetIndex, rowIndex, columnIndex);
        PlainValueCellCacheEntry pcce = _plainCellCache.get(loc);

        if (cell.getCellType() == CellType.FORMULA) {
            if (fcce == null) {
                fcce = new FormulaCellCacheEntry();
                if (pcce == null) {
                    if (_evaluationListener != null) {
                        _evaluationListener.onChangeFromBlankValue(sheetIndex, rowIndex,
                                columnIndex, cell, fcce);
                    }
                    updateAnyBlankReferencingFormulas(bookIndex, sheetIndex, rowIndex,
                            columnIndex);
                }
                _formulaCellCache.put(cell, fcce);
            } else {
                fcce.recurseClearCachedFormulaResults(_evaluationListener);
                fcce.clearFormulaEntry();
            }
            if (pcce == null) {
                // was formula cell before - no change of type
            } else {
                // changing from plain cell to formula cell
                pcce.recurseClearCachedFormulaResults(_evaluationListener);
                _plainCellCache.remove(loc);
            }
        } else {
            ValueEval value = WorkbookEvaluator.getValueFromNonFormulaCell(cell);
            if (pcce == null) {
                if (value != BlankEval.instance) {
                    // only cache non-blank values in the plain cell cache
                    // (dependencies on blank cells are managed by
                    // FormulaCellCacheEntry._usedBlankCellGroup)
                    pcce = new PlainValueCellCacheEntry(value);
                    if (fcce == null) {
                        if (_evaluationListener != null) {
                            _evaluationListener.onChangeFromBlankValue(sheetIndex, rowIndex, columnIndex, cell, pcce);
                        }
                        updateAnyBlankReferencingFormulas(bookIndex, sheetIndex,
                                rowIndex, columnIndex);
                    }
                    _plainCellCache.put(loc, pcce);
                }
            } else {
                if (pcce.updateValue(value)) {
                    pcce.recurseClearCachedFormulaResults(_evaluationListener);
                }
                if (value == BlankEval.instance) {
                    _plainCellCache.remove(loc);
                }
            }
            if (fcce == null) {
                // was plain cell before - no change of type
            } else {
                // was formula cell before - now a plain value
                _formulaCellCache.remove(cell);
                fcce.setSensitiveInputCells(null);
                fcce.recurseClearCachedFormulaResults(_evaluationListener);
            }
        }
    }

    private void updateAnyBlankReferencingFormulas(int bookIndex, int sheetIndex,
            final int rowIndex, final int columnIndex) {
        final BookSheetKey bsk = new BookSheetKey(bookIndex, sheetIndex);
        _formulaCellCache.applyOperation(entry -> entry.notifyUpdatedBlankCell(bsk, rowIndex, columnIndex, _evaluationListener));
    }

    public PlainValueCellCacheEntry getPlainValueEntry(int bookIndex, int sheetIndex,
            int rowIndex, int columnIndex, ValueEval value) {

        Loc loc = new Loc(bookIndex, sheetIndex, rowIndex, columnIndex);
        PlainValueCellCacheEntry result = _plainCellCache.get(loc);
        if (result == null) {
            result = new PlainValueCellCacheEntry(value);
            _plainCellCache.put(loc, result);
            if (_evaluationListener != null) {
                _evaluationListener.onReadPlainValue(sheetIndex, rowIndex, columnIndex, result);
            }
        } else {
            // TODO - if we are confident that this sanity check is not required, we can remove 'value' from plain value cache entry
            if (!areValuesEqual(result.getValue(), value)) {
                throw new IllegalStateException("value changed");
            }
            if (_evaluationListener != null) {
                _evaluationListener.onCacheHit(sheetIndex, rowIndex, columnIndex, value);
            }
        }
        return result;
    }
    private boolean areValuesEqual(ValueEval a, ValueEval b) {
        if (a == null) {
            return false;
        }
        Class<?> cls = a.getClass();
        if (cls != b.getClass()) {
            // value type is changing
            return false;
        }
        if (a == BlankEval.instance) {
            return b == a;
        }
        if (cls == NumberEval.class) {
            return ((NumberEval)a).getNumberValue() == ((NumberEval)b).getNumberValue();
        }
        if (cls == StringEval.class) {
            return ((StringEval)a).getStringValue().equals(((StringEval)b).getStringValue());
        }
        if (cls == BoolEval.class) {
            return ((BoolEval)a).getBooleanValue() == ((BoolEval)b).getBooleanValue();
        }
        if (cls == ErrorEval.class) {
            return ((ErrorEval)a).getErrorCode() == ((ErrorEval)b).getErrorCode();
        }
        throw new IllegalStateException("Unexpected value class (" + cls.getName() + ")");
    }

    public FormulaCellCacheEntry getOrCreateFormulaCellEntry(EvaluationCell cell) {
        FormulaCellCacheEntry result = _formulaCellCache.get(cell);
        if (result == null) {

            result = new FormulaCellCacheEntry();
            _formulaCellCache.put(cell, result);
        }
        return result;
    }

    /**
     * Should be called whenever there are changes to input cells in the evaluated workbook.
     */
    public void clear() {
        if(_evaluationListener != null) {
            _evaluationListener.onClearWholeCache();
        }
        _plainCellCache.clear();
        _formulaCellCache.clear();
    }
    public void notifyDeleteCell(int bookIndex, int sheetIndex, EvaluationCell cell) {

        if (cell.getCellType() == CellType.FORMULA) {
            FormulaCellCacheEntry fcce = _formulaCellCache.remove(cell);
            if (fcce == null) {
                // formula cell has not been evaluated yet
            } else {
                fcce.setSensitiveInputCells(null);
                fcce.recurseClearCachedFormulaResults(_evaluationListener);
            }
        } else {
            Loc loc = new Loc(bookIndex, sheetIndex, cell.getRowIndex(), cell.getColumnIndex());
            PlainValueCellCacheEntry pcce = _plainCellCache.get(loc);

            if (pcce == null) {
                // cache entry doesn't exist. nothing to do
            } else {
                pcce.recurseClearCachedFormulaResults(_evaluationListener);
            }
        }
    }
}

⏎ org/apache/poi/ss/formula/EvaluationCache.java

Or download all of them as a single archive file:

File name: poi-5.2.3-src.zip
File size: 2479830 bytes
Release date: 2022-09-09
Download 

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