| /* ==================================================================== |
| 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 java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.poi.ss.formula.eval.ValueEval; |
| |
| /** |
| * Stores details about the current evaluation of a cell.<br/> |
| */ |
| final class CellEvaluationFrame { |
| |
| private final FormulaCellCacheEntry _cce; |
| private final Set<CellCacheEntry> _sensitiveInputCells; |
| private FormulaUsedBlankCellSet _usedBlankCellGroup; |
| |
| public CellEvaluationFrame(FormulaCellCacheEntry cce) { |
| _cce = cce; |
| _sensitiveInputCells = new HashSet<CellCacheEntry>(); |
| } |
| public CellCacheEntry getCCE() { |
| return _cce; |
| } |
| |
| public String toString() { |
| StringBuffer sb = new StringBuffer(64); |
| sb.append(getClass().getName()).append(" ["); |
| sb.append("]"); |
| return sb.toString(); |
| } |
| /** |
| * @param inputCell a cell directly used by the formula of this evaluation frame |
| */ |
| public void addSensitiveInputCell(CellCacheEntry inputCell) { |
| _sensitiveInputCells.add(inputCell); |
| } |
| /** |
| * @return never <code>null</code>, (possibly empty) array of all cells directly used while |
| * evaluating the formula of this frame. |
| */ |
| private CellCacheEntry[] getSensitiveInputCells() { |
| int nItems = _sensitiveInputCells.size(); |
| if (nItems < 1) { |
| return CellCacheEntry.EMPTY_ARRAY; |
| } |
| CellCacheEntry[] result = new CellCacheEntry[nItems]; |
| _sensitiveInputCells.toArray(result); |
| return result; |
| } |
| public void addUsedBlankCell(int bookIndex, int sheetIndex, int rowIndex, int columnIndex) { |
| if (_usedBlankCellGroup == null) { |
| _usedBlankCellGroup = new FormulaUsedBlankCellSet(); |
| } |
| _usedBlankCellGroup.addCell(bookIndex, sheetIndex, rowIndex, columnIndex); |
| } |
| |
| public void updateFormulaResult(ValueEval result) { |
| _cce.updateFormulaResult(result, getSensitiveInputCells(), _usedBlankCellGroup); |
| } |
| } |