Exporting data from BW to Websphere

Hello Friends,

I will furnish few details and let me know how to proceed and what to code to pull these details from BW to Websphere using JAVA.

These are the details websphere portal needs from BW-->

Delivery #, Inv # Inv Date,Order #, Product, Amount, Qty, Shipped date with variables defined on Customer PO#, 0CAKDAY.

Now can someone walk me thru and tell me their suggestions. Create BAPI/MDX???

Bye,