WebDynpro online vs offline (reuse)

Question

Hi all,
I am interested in the reuse of coding when you have an online WebDynpro application and you want to migrate it to an offline WebDynpro application based on SAP NetWeaver Mobile 7.1.
I understand the difference in technology so I can accept that there is a lot to do in the backend and middleware systems, but I am interested in the front-end.
Can we reuse the frontend coding or do we have to completely rewrite the coding to get the same offline application?
Thanks in advance and kind regards,
Bart Elshout

Answer 1

Hi,
If my guess is correct,  earlier the webdynpro online application is directly using Function modules of the backend to create model classes in the client application and on top of it you would have created your own webdynpro components for UI and also other logic.
With Netweaver Mobile 7.1 you still can use the old option of online, but there is also a possibility to create Data objects on the middleware using the function modules from the backend. So all you need to take care with the client application is you need to create model classes based on data objects from Netweaver mobile 7.1 component called DOE instead of using function modules directly and I think you can still use your old UI layer of webdnypro client application and all the code which is independent of persistence layer. Only the persistence layer of your old application might get affected but otherwise your presentation and application logic still holds good.
Best Regards,
Siva.