Examples of org.apache.poi.ss.usermodel.FormulaEvaluator.evaluateFormulaCell()

Class org.apache.poi.ss.usermodel.FormulaEvaluator

Examples of org.apache.poi.ss.usermodel.FormulaEvaluator.evaluateFormulaCell()

org.apache.poi.ss.usermodel.FormulaEvaluator.evaluateFormulaCell()
If cell contains formula, it evaluates the formula, and saves the result of the formula. The cell remains as a formula cell. Else if cell does not contain formula, this method leaves the cell unchanged. Note that the type of the formula result is returned, so you know what kind of value is also stored with the formula.
```
 int evaluatedCellType = evaluator.evaluateFormulaCell(cell); 
```
Be aware that your cell will hold both the formula, and the result. If you want the cell replaced with the result of the formula, use {@link #evaluateInCell(Cell)} @param cell The cell to evaluate @return The type of the formula result (the cell's type remains as Cell.CELL_TYPE_FORMULA however)

       
       assertEquals("SUM(\n1,2\n)", c.getCellFormula());
       assertEquals(3.0, c.getNumericCellValue());
       
       FormulaEvaluator formulaEvaluator = wb.getCreationHelper().createFormulaEvaluator();
       formulaEvaluator.evaluateFormulaCell(c);
       
       assertEquals("SUM(\n1,2\n)", c.getCellFormula());
       assertEquals(3.0, c.getNumericCellValue());
    }

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          cfs.setCellFormula("B1");
          
          FormulaEvaluator fe = wb.getCreationHelper().createFormulaEvaluator();
          assertEquals(Cell.CELL_TYPE_NUMERIC, fe.evaluate(cfn).getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, fe.evaluate(cfs).getCellType());
          fe.evaluateFormulaCell(cfn);
          fe.evaluateFormulaCell(cfs);
          
          // Now test
          assertEquals(Cell.CELL_TYPE_NUMERIC, cn.getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, cs.getCellType());

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          FormulaEvaluator fe = wb.getCreationHelper().createFormulaEvaluator();
          assertEquals(Cell.CELL_TYPE_NUMERIC, fe.evaluate(cfn).getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, fe.evaluate(cfs).getCellType());
          fe.evaluateFormulaCell(cfn);
          fe.evaluateFormulaCell(cfs);
          
          // Now test
          assertEquals(Cell.CELL_TYPE_NUMERIC, cn.getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, cs.getCellType());
          assertEquals(Cell.CELL_TYPE_FORMULA, cfn.getCellType());

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    for(int sheetNum = 0; sheetNum < wb.getNumberOfSheets(); sheetNum++) {
        Sheet sheet = wb.getSheetAt(sheetNum);
        for(Row r : sheet) {
            for(Cell c : r) {
                if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
                    evaluator.evaluateFormulaCell(c);
                }
            }
        }
    }
  }

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    Row lARow = lSheet.getRow(0);
    Cell lA1Cell = lARow.getCell(0);
    
    assertEquals(Cell.CELL_TYPE_FORMULA, lA1Cell.getCellType());
    try {
      evaluator.evaluateFormulaCell(lA1Cell);
      fail("Missing external workbook reference exception expected!");
    }catch(RuntimeException re) {
      assertTrue("Unexpected exception: " + re, re.getMessage().indexOf(SOURCE_DUMMY_WORKBOOK_FILENAME) != -1);
    }
  }

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        // Evaluate
    FormulaEvaluator evaluator = mainWorkbook.getCreationHelper().createFormulaEvaluator();
        evaluator.setIgnoreMissingWorkbooks(true);


    assertEquals(Cell.CELL_TYPE_NUMERIC, evaluator.evaluateFormulaCell(lA1Cell));
    assertEquals(Cell.CELL_TYPE_STRING,  evaluator.evaluateFormulaCell(lB1Cell));
    assertEquals(Cell.CELL_TYPE_BOOLEAN, evaluator.evaluateFormulaCell(lC1Cell));


    assertEquals(10.0d, lA1Cell.getNumericCellValue(), 0.00001d);
    assertEquals("POI rocks!", lB1Cell.getStringCellValue());

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        // Evaluate
    FormulaEvaluator evaluator = mainWorkbook.getCreationHelper().createFormulaEvaluator();
        evaluator.setIgnoreMissingWorkbooks(true);


    assertEquals(Cell.CELL_TYPE_NUMERIC, evaluator.evaluateFormulaCell(lA1Cell));
    assertEquals(Cell.CELL_TYPE_STRING,  evaluator.evaluateFormulaCell(lB1Cell));
    assertEquals(Cell.CELL_TYPE_BOOLEAN, evaluator.evaluateFormulaCell(lC1Cell));


    assertEquals(10.0d, lA1Cell.getNumericCellValue(), 0.00001d);
    assertEquals("POI rocks!", lB1Cell.getStringCellValue());
    assertEquals(true, lC1Cell.getBooleanCellValue());

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    FormulaEvaluator evaluator = mainWorkbook.getCreationHelper().createFormulaEvaluator();
        evaluator.setIgnoreMissingWorkbooks(true);


    assertEquals(Cell.CELL_TYPE_NUMERIC, evaluator.evaluateFormulaCell(lA1Cell));
    assertEquals(Cell.CELL_TYPE_STRING,  evaluator.evaluateFormulaCell(lB1Cell));
    assertEquals(Cell.CELL_TYPE_BOOLEAN, evaluator.evaluateFormulaCell(lC1Cell));


    assertEquals(10.0d, lA1Cell.getNumericCellValue(), 0.00001d);
    assertEquals("POI rocks!", lB1Cell.getStringCellValue());
    assertEquals(true, lC1Cell.getBooleanCellValue());
  }

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          cfs.setCellFormula("B1");
          
          FormulaEvaluator fe = wb.getCreationHelper().createFormulaEvaluator();
          assertEquals(Cell.CELL_TYPE_NUMERIC, fe.evaluate(cfn).getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, fe.evaluate(cfs).getCellType());
          fe.evaluateFormulaCell(cfn);
          fe.evaluateFormulaCell(cfs);
          
          // Now test
          assertEquals(Cell.CELL_TYPE_NUMERIC, cn.getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, cs.getCellType());

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          FormulaEvaluator fe = wb.getCreationHelper().createFormulaEvaluator();
          assertEquals(Cell.CELL_TYPE_NUMERIC, fe.evaluate(cfn).getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, fe.evaluate(cfs).getCellType());
          fe.evaluateFormulaCell(cfn);
          fe.evaluateFormulaCell(cfs);
          
          // Now test
          assertEquals(Cell.CELL_TYPE_NUMERIC, cn.getCellType());
          assertEquals(Cell.CELL_TYPE_STRING, cs.getCellType());
          assertEquals(Cell.CELL_TYPE_FORMULA, cfn.getCellType());

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