Examples of java.math.BigDecimal.doubleValue()

java.math.BigDecimal.doubleValue()
sun.com/docs/books/jls/second_edition/html/conversions.doc.html#25363">narrowing primitive conversion from {@code double} to{@code float} as defined in the Java Language Specification: if this {@code BigDecimal} has too great amagnitude represent as a {@code double}, it will be converted to {@link Double#NEGATIVE_INFINITY} or {@link Double#POSITIVE_INFINITY} as appropriate. Note that even whenthe return value is finite, this conversion can lose information about the precision of the {@code BigDecimal}value. @return this {@code BigDecimal} converted to a {@code double}.

   */
  public Object getValue()
  {
    final BigDecimal dividend = (BigDecimal) dividendFunction.getValue();
    final BigDecimal divisor = (BigDecimal) divisorFunction.getValue();
    if (divisor == null || dividend == null || divisor.doubleValue() == 0)
    {
      return null;
    }
    return dividend.divide(divisor, scale, roundingMode);
  }

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   */
  public Object getValue()
  {
    final BigDecimal total = (BigDecimal) totalSumFunction.getValue();


    if (total == null || total.doubleValue() == 0)
    {
      return null;
    }
    if (scaleToHundred)
    {

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                    unwrapped = bigDecimal.intValue();
                } else {
                    unwrapped = bigDecimal.longValue();
                }
            } else {
                unwrapped = bigDecimal.doubleValue();
            }
        } else {
            unwrapped = n;
        }
        return unwrapped;

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        }
        
        // second check, does upload exceed max size for file?
        BigDecimal maxFileMB = new BigDecimal(
                WebloggerRuntimeConfig.getProperty("uploads.file.maxsize"));
        int maxFileBytes = (int)(1024000 * maxFileMB.doubleValue());
        log.debug("max allowed file size = "+maxFileBytes);
        log.debug("attempted save file size = "+size);
        if (size > maxFileBytes) {
            messages.addError("error.upload.filemax", maxFileMB.toString());
            return false;

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        }
        
        // third check, does file cause weblog to exceed quota?
        BigDecimal maxDirMB = new BigDecimal(
                WebloggerRuntimeConfig.getProperty("uploads.dir.maxsize"));
        long maxDirBytes = (long)(1024000 * maxDirMB.doubleValue());
        try {
            File uploadsDir = this.getRealFile(weblog, null);
            long userDirSize = getDirSize(uploadsDir, true);
            if (userDirSize + size > maxDirBytes) {
                messages.addError("error.upload.dirmax", maxDirMB.toString());

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      }
    }
    double speedUp = durationForSequential / passResult.getDuration();
    BigDecimal bigDecimalSpeedUp = new BigDecimal(speedUp);
    bigDecimalSpeedUp.setScale(1, BigDecimal.ROUND_HALF_UP);
    row.add(bigDecimalSpeedUp.doubleValue());
  }


  protected void postProcessResultSet(TabularResultSet tabularResultSet) {
    if(tabularResultSet.getResults().size() > 0) {
      int columnSize = tabularResultSet.getResults().get(0).size();

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    //stocks are equally likely to go up or down
    double percentGain = rndFloat(1) + 0.5;
    // change factor is between +/- 50%
    BigDecimal percentGainBD =
      (new BigDecimal(percentGain)).setScale(2, BigDecimal.ROUND_HALF_UP);
    if (percentGainBD.doubleValue() <= 0.0)
      percentGainBD = ONE;


    return percentGainBD;
  }

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  @Override
  public void validate(FacesContext facesContext, UIComponent uiComponent, Object object) throws ValidatorException {
    
    BigDecimal valor = (BigDecimal) object;
    
    if(valor == null || valor.doubleValue() <= 0){
      throw new ValidatorException(
        new FacesMessage(
          FacesMessage.SEVERITY_ERROR, 
          "Existem campos obrigatórios sem preenchimento..: ", 
          "O Valor é obrigatório e deve ser maior que zero"

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        } else {
            amount = BigDecimal.ZERO;
        }


        // check for required amount
        if ((ProductWorker.isAmountRequired(delegator, productId)) && (amount == null || amount.doubleValue() == 0.0)) {
            request.setAttribute("product_id", productId);
            request.setAttribute("_EVENT_MESSAGE_", UtilProperties.getMessage(resource_error, "cart.addToCart.enterAmountBeforeAddingToCart", locale));
            return "product";
        }

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        //Determine where to send the browser
        if (controlDirective.equals(ERROR)) {
            return "error";
        } else {
            totalQuantity = (BigDecimal)result.get("totalQuantity");
            Map<String, Object> messageMap = UtilMisc.<String, Object>toMap("totalQuantity", UtilFormatOut.formatQuantity(totalQuantity.doubleValue()));


            request.setAttribute("_EVENT_MESSAGE_",
                                  UtilProperties.getMessage(resource_error, "cart.add_category_defaults",
                                          messageMap, locale));

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