Examples of HSSFFormulaEvaluator

org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator
Evaluates formula cells.
For performance reasons, this class keeps a cache of all previously calculated intermediate cell values. Be sure to call {@link #clearAllCachedResultValues()} if any workbook cells are changed betweencalls to evaluate~ methods on this class. @author Amol S. Deshmukh < amolweb at ya hoo dot com > @author Josh Micich

Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

     *  http://office.microsoft.com/en-us/excel-help/intercept-function-HP010062512.aspx?CTT=5&origin=HA010277524
     */
    public void testFromFile() {


        HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("intercept.xls");
        HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);


        HSSFSheet example1 = wb.getSheet("Example 1");
        HSSFCell a8 = example1.getRow(7).getCell(0);
        assertEquals("INTERCEPT(A2:A6,B2:B6)", a8.getCellFormula());
        fe.evaluate(a8);
        assertEquals(0.048387097, a8.getNumericCellValue(), 0.000000001);


    }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

     *  from http://office.microsoft.com/en-001/excel-help/ipmt-HP005209145.aspx
     */
    public void testFromFile() {


        HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("finance.xls");
        HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);


        HSSFSheet example1 = wb.getSheet("IPMT");
        HSSFCell ex1cell1 = example1.getRow(6).getCell(0);
        fe.evaluate(ex1cell1);
        assertEquals(-22.41, ex1cell1.getNumericCellValue(), 0.1);


        HSSFCell ex1cell2 = example1.getRow(7).getCell(0);
        fe.evaluate(ex1cell2);
        assertEquals(-292.45, ex1cell2.getNumericCellValue(), 0.1);


    }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

  /**
   * Translates StackOverflowError into AssertionFailedError
   */
  private static CellValue evaluateWithCycles(HSSFWorkbook wb, HSSFCell testCell)
      throws AssertionFailedError {
    HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(wb);
    try {
      return evaluator.evaluate(testCell);
    } catch (StackOverflowError e) {
      throw new AssertionFailedError( "circular reference caused stack overflow error");
    }
  }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

        if (null == cell) {
            return EMPTY;
        }
        final int cellValueType;
        if (cell.getCellType() == HSSFCell.CELL_TYPE_FORMULA) {
             final HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(sheet, workbook);
             evaluator.setCurrentRow(row);
             cellValueType = evaluator.evaluateFormulaCell(cell);
        }
        else {
          cellValueType = cell.getCellType();
        }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

    
    public void genericTest() throws Exception {
        HSSFSheet s = workbook.getSheetAt( 0 );
        HSSFRow r = s.getRow(getBeginRow());
        short endcolnum = r.getLastCellNum();
        HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(s, workbook);
        evaluator.setCurrentRow(r);


        HSSFCell c = null;
        for (short colnum=getBeginCol(); colnum < endcolnum; colnum++) {
            try {
            c = r.getCell(colnum);
            if (c==null || c.getCellType() != HSSFCell.CELL_TYPE_FORMULA)
                continue;
            
            HSSFFormulaEvaluator.CellValue actualValue = evaluator.evaluate(c);
            
            HSSFCell expectedValueCell = getExpectedValueCell(s, r, c);
            assertEquals("Formula: " + c.getCellFormula() 
                    + " @ " + getBeginRow() + ":" + colnum, 
                    expectedValueCell, actualValue);

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator


  public void testEvaluateMultipleWorkbooks() {
    HSSFWorkbook wbA = HSSFTestDataSamples.openSampleWorkbook("multibookFormulaA.xls");
    HSSFWorkbook wbB = HSSFTestDataSamples.openSampleWorkbook("multibookFormulaB.xls");


    HSSFFormulaEvaluator evaluatorA = new HSSFFormulaEvaluator(wbA);
    HSSFFormulaEvaluator evaluatorB = new HSSFFormulaEvaluator(wbB);


    // Hook up the workbook evaluators to enable evaluation of formulas across books
    String[] bookNames = { "multibookFormulaA.xls", "multibookFormulaB.xls", };
    HSSFFormulaEvaluator[] evaluators = { evaluatorA, evaluatorB, };
    HSSFFormulaEvaluator.setupEnvironment(bookNames, evaluators);


    HSSFCell cell;


    HSSFSheet aSheet1 = wbA.getSheetAt(0);
    HSSFSheet bSheet1 = wbB.getSheetAt(0);


    // Simple case - single link from wbA to wbB
    confirmFormula(wbA, 0, 0, 0, "[multibookFormulaB.xls]BSheet1!B1");
    cell = aSheet1.getRow(0).getCell(0);
    confirmEvaluation(35, evaluatorA, cell);




    // more complex case - back link into wbA
    // [wbA]ASheet1!A2 references (among other things) [wbB]BSheet1!B2
    confirmFormula(wbA, 0, 1, 0, "[multibookFormulaB.xls]BSheet1!$B$2+2*A3");
    // [wbB]BSheet1!B2 references (among other things) [wbA]AnotherSheet!A1:B2
    confirmFormula(wbB, 0, 1, 1, "SUM([multibookFormulaA.xls]AnotherSheet!$A$1:$B$2)+B3");


    cell = aSheet1.getRow(1).getCell(0);
    confirmEvaluation(264, evaluatorA, cell);


    // change [wbB]BSheet1!B3 (from 50 to 60)
    HSSFCell cellB3 = bSheet1.getRow(2).getCell(1);
    cellB3.setCellValue(60);
    evaluatorB.notifyUpdateCell(cellB3);
    confirmEvaluation(274, evaluatorA, cell);


    // change [wbA]ASheet1!A3 (from 100 to 80)
    HSSFCell cellA3 = aSheet1.getRow(2).getCell(0);
    cellA3.setCellValue(80);

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

    HSSFWorkbook wb = new HSSFWorkbook();
    HSSFSheet sheet = wb.createSheet("Sheet1");
    HSSFRow row = sheet.createRow(0);
    HSSFCell cellA1 = row.createCell(0);
    HSSFCell cellB1 = row.createCell(1);
    HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);


    cellA1.setCellFormula("B1+2.2");
    cellB1.setCellValue(1.5);


    fe.notifyUpdateCell(cellA1);
    fe.notifyUpdateCell(cellB1);


    CellValue cv;
    cv = fe.evaluate(cellA1);
    assertEquals(3.7, cv.getNumberValue(), 0.0);


    cellB1.setCellType(HSSFCell.CELL_TYPE_BLANK);
    fe.notifyUpdateCell(cellB1);
    cv = fe.evaluate(cellA1); // B1 was used to evaluate A1
    assertEquals(2.2, cv.getNumberValue(), 0.0);


    cellB1.setCellValue(0.4);  // changing B1, so A1 cached result should be cleared 
    fe.notifyUpdateCell(cellB1);
    cv = fe.evaluate(cellA1);
    if (cv.getNumberValue() == 2.2) {
      // looks like left-over cached result from before change to B1
      throw new AssertionFailedError("Identified bug 46053");
    }
    assertEquals(2.6, cv.getNumberValue(), 0.0);

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator


    // put some values in the cells to make the evaluation more interesting
    sheet.createRow(32768).createCell(0).setCellValue(31);
    sheet.createRow(32769).createCell(0).setCellValue(11);
    
    HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
    CellValue result;
    try {
      result = fe.evaluate(cell);
    } catch (RuntimeException e) {
      FormulaParserTestHelper.confirmParseException(e);
      if (!e.getMessage().equals("Found reference to named range \"A\", but that named range wasn't defined!")) {
        throw new AssertionFailedError("Identifed bug 44539");
      }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

    HSSFRow row = sheet.getRow(0);
    HSSFCell myFuncCell = row.getCell(1); // =myFunc("_")


    HSSFCell myFunc2Cell = row.getCell(2); // =myFunc2("_")


    HSSFFormulaEvaluator fe = HSSFFormulaEvaluator.create(wb, null, udff);
    assertEquals("_abc", fe.evaluate(myFuncCell).getStringValue());
    assertEquals("_abc2", fe.evaluate(myFunc2Cell).getStringValue());
  }

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Examples of org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator

    }




    cellB1.setCellValue(1.0); // range will be C1:D1


    HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
    CellValue cv;
    try {
      cv = fe.evaluate(cellA1);
    } catch (IllegalArgumentException e) {
      if (e.getMessage().equals("Unexpected ref arg class (org.apache.poi.ss.formula.LazyAreaEval)")) {
        throw new AssertionFailedError("Identified bug 46948");
      }
      throw e;
    }


    assertEquals(12.0, cv.getNumberValue(), 0.0);


    cellB1.setCellValue(2.0); // range will be C1:E1
    fe.notifyUpdateCell(cellB1);
    cv = fe.evaluate(cellA1);
    assertEquals(21.0, cv.getNumberValue(), 0.0);


    cellB1.setCellValue(0.0); // range will be C1:C1
    fe.notifyUpdateCell(cellB1);
    cv = fe.evaluate(cellA1);
    assertEquals(5.0, cv.getNumberValue(), 0.0);
  }

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