com.neurosys.ecom.orders.strategy

Interface OrderProcessStrategy<O extends Order<I>,I extends OrderItem>

Type Parameters:

O - as Order type

I - as OrderItem type

All Known Subinterfaces:

PostOrderProcessStrategy<T,I>, PreOrderProcessStrategy<T,I>

public interface OrderProcessStrategy<O extends Order<I>,I extends OrderItem>

A hook to process and Order before, the actual process, post-order. A direct implementation of this can be called each time a save/update is performed on an Order. See OrderService#save(Order, String) & OrderService.update(OrderItem, String)
Example(s):

• Discounts
• Coupons
• Auto tax calculation over base amount

etc... Note: One may also explore the use of ChangeListeners on hooking to OrderService; which is a ChangeGenerator The only difference is ChangeListener are only fired after the change of an event; so while we can substitute a PostOrderProcessStrategy in DefaultOrderService we cannot substitute a PreOrderProcessStrategy; hence this explicit alternate mechanism will be preserved or deprecated if the ChangeListener allows more flexivbility in the future.

Author:

Arjun Dhar

Method Summary

Modifier and Type	Method and Description
I	onSave(I orderItem)
<T extends O> T	onSave(T order)

Method Detail

onSave

<T extends O> T onSave(T order)
                throws OrderPlacementException

Throws:

OrderPlacementException

onSave

I onSave(I orderItem)
  throws OrderPlacementException

Throws:

OrderPlacementException