TutorialforbuildingJ2EEApplicationsusingJBOSSandECLIPSE-7

Create an Immutable Value Object named DeliverItem under the package au.com.tusc.mdb. Add some attributes and implement their accessor and mutator methods. The attributes are:

private String username

private String passwd

private String itemID

private int quantity

Implement the onMessage method in your DeliverItems Bean.

Add these two variables to store references.

private StoreAccessHome storeAccess = null;private ItemLocalHome itemLocalHome = null;

Extract the data from the message into your immutable value object as shown below.

DelieverItem di =  (DeliverItem) ((ObjectMessage) message).getObject();

Get the references for the StoreAccess and Item beans.

StoreAccess access = StoreAccessUtil.getHome().create();itemLocalHome = ItemUtil.getLocalHome();

Invoke the loginUser method for supplier to get the Supplier's userid(accessID) and then find the Supplier's ID by invoking the getSupplierData method.

String suppAcessID = access.loginUser(di.getUsername(), di.getPasswd());SupplierData sd = access.getSupplierData(suppAccessID);String suppID = sd.getSupplierID();

If suppID is not equal to null, then invoke the finder method on the Item bean to get the details of the item to be delivered, by extracting itemID from message.

ItemLocal item = this.itemLocalHome.findByPrimaryKey(di.getItemID());

Get the supplier ID associated with the item found, so we can fill up the stock.

String itemSuppID = item.getSupplierID(); 

Compare itemSuppID and ItemID, if these are the same then fill the stock for that item by invoking the fillStock method in Item bean.

if ( suppID.equals(itemSuppID)) {    System.out.println ("Delivering items in store now... :");    Integer quantity = new Integer (di.getQuantity());    item.fillStock(quantity);    System.out.println ("Stock of iten after dleivery is :" + item.getItemData());}

Add the following tags for deployment at the class level for linking/referencing Supplier.