Display of data on as columns in a table

Question

Hi All,
I have an application where the data from R/3 server is displayed on the table.
The different columns are:
1. Date 2. Volume 3. Price
the Volume is corresponding to the date mentioned. which is in past/or future.
I have to read the difference between current date and the column date in days. and multiply that with a price factor( to be read from the server ) and add it up with price on current day( to be read from server) and display it under the column "price".
there can be many rows with many different dates and different corresponding price factors.
Can some one tell me how to go about this.
Thanks in advance
Srikant

Answer 1

Hi to  All(& Nibu)
I have written functions:
1.  Executing the The Bapi
2.  finding the difference the between dates in days.
3.  finding the price
The following are the codes for them:
public void executeZs_Wcontract_Quantity_Input( )
    //@@begin executeZs_Wcontract_Quantity_Input()
        try
             wdContext.nodeZs_Wcontract_Quantity_Input().currentZs_Wcontract_Quantity_InputElement().modelObject().execute();
             wdContext.nodeOutput_Contract_Qty().invalidate();
        catch(WDRFCException ex)
             ex.printStackTrace();
    //@@end
public int daysDifference( java.lang.String startDate, java.lang.String finishDate )
    //@@begin daysDifference()
    try
         SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
         Date beginDate = dateFormat.parse(startDate);
         Date endDate = dateFormat.parse(finishDate);
          GregorianCalendar calStart = new GregorianCalendar();
          calStart.setTime(beginDate);
          GregorianCalendar calEnd = new GregorianCalendar();
          calEnd.setTime(endDate);
               //if the dates belong to same year
               if (calStart.get(Calendar.YEAR) == calEnd.get(Calendar.YEAR))
               return calEnd.get(Calendar.DAY_OF_YEAR) - calStart.get(Calendar.DAY_OF_YEAR);
               else if ((calEnd.get(Calendar.YEAR) - calStart.get(Calendar.YEAR)) == 1)
                         int daysEndYear = calEnd.get(Calendar.DAY_OF_YEAR);
                         int daysStartYear = calStart.getActualMaximum(Calendar.DAY_OF_YEAR) - calStart.get(Calendar.DAY_OF_YEAR);
                         return daysEndYear + daysStartYear;
                    else
                              int startYear = calStart.get(Calendar.YEAR);
                              int endYear = calEnd.get(Calendar.YEAR);
                              GregorianCalendar cal = new GregorianCalendar();
                              int days = 0;
                              for (int i = startYear + 1; i < endYear; i++)
                                             cal.set(Calendar.YEAR, i);
                                             days += cal.getActualMaximum(Calendar.DAY_OF_YEAR);
                                             days += calEnd.get(Calendar.DAY_OF_YEAR);
                                             days += (calStart.getActualMaximum(Calendar.DAY_OF_YEAR) - calStart.get(Calendar.DAY_OF_YEAR));
                              return days;
     catch (Exception e)
     return -1;
    //@@end
public void calFixedPrice( )
    //@@begin calFixedPrice()
             int max = wdContext.nodeZs_Wcontract_Quantity_Input().nodeOutput_Contract_Qty().size();
          //wdContext.currentContextElement().setCFlag("Srikant");
              for (int fixedCounter = 0; fixedCounter<max; fixedCounter++)
              Date presentDate = Calendar.getInstance().getTime();
               Date givenDate = wdContext.nodeZs_Wcontract_Quantity_Input().nodeOutput_Contract_Qty().nodeLi_Schedule_Lines().getLi_Schedule_LinesElementAt(fixedCounter).getSchddt();
                  //Conversion of the Dates in String
                       String PresentDate = presentDate.toString();
                       String GivenDate = givenDate.toString();
                  //Calculation of no. of days
                       int numDays = daysDifference(PresentDate,GivenDate);
                       double Days = numDays;
                  //Getting the Values of Current Price for the Day and Fixed Price Factor based on that
                          double quotedPrice = (wdContext.nodeZs_Wcontract_Quantity_Input().nodeOutput_Contract_Qty().nodeLi_Post_Id_Price().getLi_Post_Id_PriceElementAt(fixedCounter).getPrice().doubleValue());
                       double fixedPriceFactor = (wdContext.nodeZs_Wcontract_Quantity_Input().nodeOutput_Contract_Qty().nodeLi_Fixed_Factor().getLi_Fixed_FactorElementAt(fixedCounter).getFixfactor().doubleValue());
                    //wdContext.currentContextElement().setCTest(fixedPriceFactor);
                  //Calcualtion of Fixed Price
                       double FixedPrice = (quotedPrice + (fixedPriceFactor * Days));
    //@@end
I'm not able find out where to use these methods and how to call them
Please help me on this, its urgent
Thanks in advance
Srikant