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Behaviour of Java List

Posted on 2014-01-25
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Last Modified: 2014-01-25
Hello there,

I have this requirement to show the amount with thousand separator. I have this POJO class with these two methods which I call according to my requirements
public Integer getTotalAmount() {
    return totalAmount;
}

public String getTotalAmountWithSeparator() {
    return String.format("%,d", totalAmount);
}

public void setTotalAmount(Integer totalAmount) {
    this.totalAmount = totalAmount;
}

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now when I use this method getTotalAmountWithSeparator() in my another class which looks like this and I do a println to see if the amount is being shown properly(which it does).


List<SupplierOrderDetails> list = SupplierOrderDetailBussinessLogic.getInstance().getSupplierOrderDetailsFromsupplierOrder(supplierOrder);

      DataProviderBuilder dpb = new DataProviderBuilder();

    // add heading data
    dpb.add("so", supplierOrder.getSupplierOrderNo());
    dpb.add("sn", supplierOrder.getSupplier().getPerName());
    dpb.add("sec", supplierOrder.getSection().getAlternateName());
    dpb.add("od", supplierOrder.getSupplierOrderCreated().toString());

    // add table data
    dpb.addJavaObject(list, "data");

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here is the actual method getSupplierOrderDetailsFromsupplierOrder(supplierOrder); which gets the data from the db.


@SuppressWarnings("unchecked")
public List<SupplierOrderDetails> getSupplierOrderDetailsFromsupplierOrder(SupplierOrder supplierOrderDetails){
    Session hibernateSession = HibernateUtills.getInstance().getHibernateSession();
    Criteria criteria = hibernateSession.createCriteria(SupplierOrderDetails.class);
    criteria.add(Restrictions.eq("supplierOrderID", supplierOrderDetails));
    List<SupplierOrderDetails> models = criteria.list();

    System.out.println(" models.size()     " + models.size());

    for (int i = 0; i < models.size(); i++)
    {
        if (models.get(i).getId() != null)
        {
            models.get(i).getProductID().getProductCode();
            models.get(i).getProductID().getBrandName();
            models.get(i).getPurchasePrice();
            models.get(i).getOrderQty();
            models.get(i).getTotalAmountWithSeparator();
            System.out.println(models.get(i).getProductID().getBrandName() + "  TotalAmount      " + models.get(i).getTotalAmountWithSeparator());

        }
        // System.out.println(models.get(i).getPurchasePrice());
    }
    return models;
} 

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but when I do a println of the list data here,it does not show the separator in the amount why?????what am I doing wrong
dp = getSupplierOrderData(Long.parseLong(supplierOrderId));
System.out.println("DATA    "+dp.getString("data"));

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0
Comment
Question by:zolf
  • 2
3 Comments
 
LVL 26

Accepted Solution

by:
dpearson earned 500 total points
ID: 39809684
That getTotalAmountWithSeparator() method and the call to format looks correct to me.

So that suggests you're maybe not calling that method from the place in the code where you believe you are calling it.

Is the correct value being printed here:

            System.out.println(models.get(i).getProductID().getBrandName() + "  TotalAmount      " + models.get(i).getTotalAmountWithSeparator());

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in your code?

If so, I'm not sure what you are expecting to print here:

System.out.println("DATA    "+dp.getString("data"));

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I think you'd need to share the getString("data") method with us - which I don't believe is present?

Also that snippet seems to be calling a different method (getSupplierOrderData) instead of the one you posted above (getSupplierOrderDetailsFromsupplierOrder) so I'm finding it a it hard to piece together exactly where the problem is arising.

Doug
0
 

Author Comment

by:zolf
ID: 39809705
Doug :

thanks for your comments

this is another method which looks like this

private DataProvider getSupplierOrderData(Long supplierorderid)
      {
            SupplierOrder supplierOrder = SupplierOrderBussinessLogic.getInstance().getSupplierOrderById(supplierorderid);
            List<SupplierOrderDetails> list = SupplierOrderDetailBussinessLogic.getInstance().getSupplierOrderDetailsFromsupplierOrder(supplierOrder);

            System.out.println(" list.size()     " + list.size());
            

            for (SupplierOrderDetails supplierOrderDetails : list)
            {
                  Integer totalAmount = supplierOrderDetails.getTotalAmount();
                  System.out.println("totalAmount      !!!!      "+supplierOrderDetails.getTotalAmountWithSeparator());
                  Integer orderQty = supplierOrderDetails.getOrderQty();
                  Integer purchasePrice = supplierOrderDetails.getPurchasePrice();
                  String brandName = supplierOrderDetails.getProductID().getBrandName();
                  Integer productCode = supplierOrderDetails.getProductID().getProductCode();
                  String supplierEngName = supplierOrderDetails.getSupplierOrderID().getSupplier().getEngName();
                  String section = supplierOrderDetails.getSupplierOrderID().getSupplier().getSection().getName();
                  String supplierOrderNo = supplierOrderDetails.getSupplierOrderID().getSupplierOrderNo();
                  Date supplierOrderCreated = supplierOrderDetails.getSupplierOrderID().getSupplierOrderCreated();

                  System.out.println(" supplierOrderDetails     " + supplierOrderDetails.toString());
            }

            DataProviderBuilder dpb = new DataProviderBuilder();

            // add heading data
            dpb.add("so", supplierOrder.getSupplierOrderNo());
            dpb.add("sn", supplierOrder.getSupplier().getPerName());
            dpb.add("sec", supplierOrder.getSection().getAlternateName());

            dpb.add("od", supplierOrder.getSupplierOrderCreated().toString());

            // add table data
            dpb.addJavaObject(list, "data");

            return dpb.getDataProvider();
      }
0
 

Author Comment

by:zolf
ID: 39809706
your comments helped me to find the problem. thanks a lot
0

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