BusinessDelegate pattern

[Francesco Marchioni]

Hi all scea users,
I have a doubt about the BusinessDelegate pattern.
I have implemented it to search route flights (Prepare Itinerary).
Should I implement with the Service Locator Pattern ? or the BusinessDelegate contacts directly the Service (holding the Lookup Service)?

In the latter scenario the objects in the sequence diagrams are
UserUI---Business Delegate---Segment---Flight

Thanks
Francesco

[Lars Behnke]

I think there is nothing wrong with using the ServiceLocator Pattern in combination with BusinessDelegate. In fact, I did the same.

[Francesco Marchioni]

Hi Lars,
thanks for your reply.
So you agree the "prepare itinerary" sequence should be like this:

ClientUI->BusinessDelegate->Service Locator->Segment->Flight

do you agree ?
Thanks
Francesco

[Lars Behnke]

Hi Francesco,
The ServiceLocator should be independent of any business classes,
for instance:

    
ClientUI -> BusinessDelegate -> ServiceLocator
                             -> EJB -> Whatever