How to use ObjectDataProvider component in WDA

Hello all,
I hv an urgent requirement to develop an OADP based application in SAP webdynpro Abap (to fetch tree like structure). i don't know how its possible, but i heard we can use ObjectDataprovider component to do the same.
Does anybody know how to use "ObjectDataProvider" component in web dynpro abap to develop OADP based Webdynpro abap application, a step by step guide would be very nice. or do i need to fetch data myself using methods in webdynpro.
any reply will be highly appreciated.
thanks
Mani

Hi,
Know this is an old post, but for future people:
In se80, see example Web Dynpro components:
OADP_EXAMPLE
OADP_TEST
Good luck,
Garth

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